Electrical quantities — Paper 1 · IGCSE Physics 0625

28 How many of the following materials conduct electricity? aluminium silver iron plastic A 1 B 2 C 3 D 4

1 marks

Answer: C

This question in 0625/11 May/June 2005

28 Which circuit should be used to find the resistance of a lamp? A B A V A V C D V V A A

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2005

29 The table shows the voltage and current ratings for four electric heaters. Which heater has the least resistance? voltage / V current / A A 110 5.0 B 110 10 C 230 5.0 D 230 10

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2005

37 Charged particles are emitted from the cathode of an oscilloscope. What is the name and the charge of these particles? name of particles charge of particles A electrons negative B electrons positive C protons negative D protons positive

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2005

28 What are the symbols used for the units of current and resistance? unit of current unit of resistance A A W B A Ω C V W D V Ω

1 marks

Answer: B

This question in 0625/11 May/June 2006

29 When a plastic comb is placed next to a small piece of aluminium foil hanging from a nylon thread, the foil is repelled by the comb. Why is this? A The comb is charged and the foil is uncharged. B The comb is uncharged and the foil is charged. C The comb and the foil have charge of opposite signs. D The comb and the foil have charge of the same sign.

1 marks

Answer: D

This question in 0625/11 May/June 2006

32 Four resistors and an ammeter are connected to a battery as shown. The ammeter reads 2 A. Which of the four labelled points in the circuit is the only one where the current is less than 2 A? A A C D B

1 marks

Answer: C

This question in 0625/11 May/June 2006

37 A cathode-ray tube has an anode and an earthed cathode. Which line in the table shows the charge and the temperature of the anode? anode charge anode temperature A negative cool B negative hot C positive cool D positive hot

1 marks

Answer: C

This question in 0625/11 May/June 2006

28 Four wires are made from the same material. Which wire has the greatest resistance? length of wire / cm diameter of wire / mm A 50 0.1 B 50 0.2 C 100 0.1 D 100 0.2

1 marks

Answer: C

This question in 0625/11 May/June 2007

29 A plastic rod is rubbed with a dry cloth and becomes positively charged. Why has the rod become positively charged? A It has gained electrons. B It has gained neutrons. C It has lost electrons. D It has lost neutrons.

1 marks

Answer: C

This question in 0625/11 May/June 2007

36 The diagram shows a lamp connected to a transformer. 40 turns 200 turns 12 V a.c. What is the potential difference across the lamp? A 2.4 V B 12 V C 60 V D 240 V

1 marks

Answer: C

This question in 0625/11 May/June 2007

37 A beam of cathode rays passes through an electric field between two parallel plates. + + + + + + cathode rays – – – – – – In which direction is the beam deflected? A into the page B out of the page C towards the bottom of the page D towards the top of the page

1 marks

Answer: D

This question in 0625/11 May/June 2007

27 Three charged balls, P, Q and R, are suspended by insulated threads. Ball P is negatively charged. insulated thread P – Q Q R What are the charges on Q and on R? Q R A positive positive B positive negative C negative positive D negative negative

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2007

28 The circuit shows a current I in a resistor of resistance R. 3.0 V I R Which line gives possible values of I and of R? I / A R / Ω A 1.5 1.5 B 1.5 2.0 C 6.0 2.0 D 4.0 12.0

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2007

29 The circuit shown in the diagram contains an unknown component X, hidden in a box. The voltage-current graph for X is as shown. variable voltage supply + – voltage A X 0 V 0 current What is the component X? A a capacitor B a closed switch C a metallic resistor D an open switch

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2007

31 The diagram shows a battery connected to three identical resistors. Four ammeters A, B, C and D are connected in the circuit. Which ammeter shows the smallest reading? A A A D A B A C

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2007

34 A mains electrical circuit uses insulated copper cable and the cable overheats. To prevent the cable overheating, how should the cable be changed, and why? A Use thicker copper cable which has less resistance. B Use thicker insulation which stops the heat escaping. C Use thinner copper cable which has more resistance. D Use thinner insulation which allows less heat to escape.

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2007

37 The diagram shows a cathode-ray tube. electron top beam screen Y2 X2 heater Y1 X1 cathode anode Y-plates X-plates bottom What must be done to deflect the electron beam upwards? A make X1 more positive than X2 B make X2 more positive than X1 C make Y1 more positive than Y2 D make Y2 more positive than Y1

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2007

29 A polythene rod repels an inflated balloon hanging from a nylon thread. What charges must the rod and the balloon carry? A The rod and the balloon carry opposite charges. B The rod and the balloon carry like charges. C The rod is charged but the balloon is not. D The balloon is charged but the rod is not.

1 marks

Answer: B

This question in 0625/11 May/June 2008

36 In order to produce a beam of cathode rays, a heated filament is placed near to an anode in an evacuated glass vessel. evacuated glass vessel anode heated filament What is the type of charge on the anode and why is this charge chosen? charge reason A negative to attract electrons B negative to repel electrons C positive to attract electrons D positive to repel electrons

1 marks

Answer: C

This question in 0625/11 May/June 2008

28 When there is an electric current in a metal wire, what flows through the wire? A atoms B electrons C neutrons D protons

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2008

29 The table shows the voltage and current ratings for four electric heaters. Which heater has the least resistance? voltage / V current / A A 110 5.0 B 110 10.0 C 230 5.0 D 230 10.0

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2008

31 The diagram shows four different circuits. P Q 3 Ω 5 Ω R S 3 Ω 3 Ω 5 Ω 5 Ω What is the order of increasing resistance of these circuits? lowest highest resistance resistance A P Q R S B R S P Q C S P Q R D P R Q S

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2008

36 A cathode-ray beam passes through an electric field between charged parallel plates. + cathode-ray beam – In which direction is the beam deflected? A towards the negative plate B towards the positive plate C into the page D out of the page

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2008

37 When the thermistor in the circuit below is heated, the lamp becomes brighter. Why does this happen? A The resistance of the lamp decreases. B The resistance of the lamp increases. C The resistance of the thermistor decreases. D The resistance of the thermistor increases.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2008

27 Which particle does not experience a force due to an electric field? A α-particle B electron C neutron D proton

1 marks

Answer: C

This question in 0625/11 May/June 2009

28 Using the circuit shown, the current I is found for various voltages V. The temperature of the resistor does not change. variable direct voltage V A I Which graph shows the results obtained? A B C D I I I I 0 0 0 0 0 V 0 V 0 V 0 V

1 marks

Answer: A

This question in 0625/11 May/June 2009

29 In the circuit shown, ammeter X reads 0.5 A. 4.0 V X A A Y 3.0 Ω 5.0 Ω What does ammeter Y read? A 0 B 0.5 A C 3.5 A D 4.0 A

1 marks

Answer: B

This question in 0625/11 May/June 2009

30 In the circuits shown, all the resistors are identical. Which circuit has the least resistance? A B C D

1 marks

Answer: C

This question in 0625/11 May/June 2009

36 In a cathode-ray tube, a hot tungsten cathode releases particles by thermionic emission. What are these particles? A α-particles B electrons C protons D tungsten atoms

1 marks

Answer: B

This question in 0625/11 May/June 2009

37 The diagram shows a cathode-ray tube. cathode anode top Y plate P screen bottom Y plate A student wants the cathode rays to make a spot at P on the screen. Which parts of the cathode-ray tube should be positive? A anode and top Y plate B anode and bottom Y plate C cathode and top Y plate D cathode and bottom Y plate

1 marks

Answer: A

This question in 0625/11 May/June 2009

27 A pupil measures the potential difference across a device and the current in it. Which calculation gives the resistance of the device? A current + potential difference B current ÷ potential difference C potential difference ÷ current D potential difference × current

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2009

28 A student uses a length of wire as a resistor. He discovers that the resistance of the wire is too small. To be certain of making a resistor of higher value, he should use a piece of wire that is A longer and thicker. B longer and thinner. C shorter and thicker. D shorter and thinner.

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2009

29 The diagram shows a battery connected to two identical resistors. Three ammeters M1, M2 and M3 are connected in the circuit. M1 A A M3 A M2 Meter M1 reads 1.0 A. What are the readings on M2 and on M3? reading on M2 / A reading on M3 / A A 0.5 0.0 B 0.5 0.5 C 0.5 1.0 D 1.0 1.0

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2009

36 The diagram shows a beam of cathode rays entering an electric field. – beam + In which direction is the beam deflected by the field? A downwards B upwards C into the page D out of the page

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2009

37 To create cathode rays in a vacuum, what might be a suitable potential difference to connect between the cathode and anode? A 6 V a.c. B 6 V d.c. C 600 V a.c. D 600 V d.c.

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2009

25 A pupil measures the potential difference across a device and the current in it. Which calculation gives the resistance of the device? A current + potential difference B current ÷ potential difference C potential difference ÷ current D potential difference × current

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2009

26 A student uses a length of wire as a resistor. He discovers that the resistance of the wire is too small. To be certain of making a resistor of higher value, he should use a piece of wire that is A longer and thicker. B longer and thinner. C shorter and thicker. D shorter and thinner.

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2009

30 The diagram shows a battery connected to two identical resistors. Three ammeters M1, M2 and M3 are connected in the circuit. M1 A A M3 A M2 Meter M1 reads 1.0 A. What are the readings on M2 and on M3? reading on M2 / A reading on M3 / A A 0.5 0.0 B 0.5 0.5 C 0.5 1.0 D 1.0 1.0

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2009

35 The diagram shows a beam of cathode rays entering an electric field. – beam + In which direction is the beam deflected by the field? A downwards B upwards C into the page D out of the page

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2009

36 To create cathode rays in a vacuum, what might be a suitable potential difference to connect between the cathode and anode? A 6 V a.c. B 6 V d.c. C 600 V a.c. D 600 V d.c.

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2009

28 The table shows the lengths and diameters of four copper wires. Which wire has the least resistance? length / m diameter / mm A 0.50 1.0 B 0.50 2.5 C 0.75 1.0 D 0.75 2.5

1 marks

Answer: B

This question in 0625/11 May/June 2010

29 A circuit is set up to measure the resistance of a resistor R. The meter readings are 2.0 A and 3.0 V. A V R What is the resistance of the resistor R? A 0.67 Ω B 1.5 Ω C 5.0 Ω D 6.0 Ω

1 marks

Answer: B

This question in 0625/11 May/June 2010

31 A lamp is connected in four circuits in turn, each using identical batteries. The resistors are all identical. In which circuit will the lamp be brightest? A B C D

1 marks

Answer: C

This question in 0625/11 May/June 2010

37 A cathode-ray tube has an anode and an earthed cathode. Which row shows the charge on the anode and the temperature of the cathode? cathode anode charge temperature A negative cool B negative hot C positive cool D positive hot

1 marks

Answer: D

This question in 0625/11 May/June 2010

29 A lamp is connected in four circuits in turn, each using identical batteries. The resistors are all identical. In which circuit will the lamp be brightest? A B C D

1 marks

Answer: C

This question in 0625/12 May/June 2010

30 A circuit is set up to measure the resistance of a resistor R. The meter readings are 2.0 A and 3.0 V. A V R What is the resistance of the resistor R? A 0.67 Ω B 1.5 Ω C 5.0 Ω D 6.0 Ω

1 marks

Answer: B

This question in 0625/12 May/June 2010

31 The table shows the lengths and diameters of four copper wires. Which wire has the least resistance? length / m diameter / mm A 0.50 1.0 B 0.50 2.5 C 0.75 1.0 D 0.75 2.5

1 marks

Answer: B

This question in 0625/12 May/June 2010

28 A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor can both be changed. Which row shows two changes that will both increase the current in the resistor? change change A decrease p.d. decrease resistance B decrease p.d. increase resistance C increase p.d. decrease resistance D increase p.d. increase resistance

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

29 The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show the current in resistor R2? A ammeter X only B ammeter Y only C both ammeter X and ammeter Y D neither ammeter X nor ammeter Y

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

30 Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistor

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2010

31 A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents at P, Q and R is true? A The current at P is the greatest. B The current at Q is the greatest. C The current at R is the greatest. D The current is the same at points P, Q and R.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

32 The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter readings are equal. How do these readings change when the value of R is reduced to 10 Ω? reading on V1 reading on V2 A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2010

37 An electric field is set up between two parallel plates. Cathode rays are directed into this field, parallel to the plates. + cathode rays – In which direction are the cathode rays deflected by the electric field? A downwards B upwards C into the page D out of the page

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2010

27 A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor can both be changed. Which row shows two changes that will both increase the current in the resistor? change change A decrease p.d. decrease resistance B decrease p.d. increase resistance C increase p.d. decrease resistance D increase p.d. increase resistance

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2010

28 Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistor

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2010

37 An electric field is set up between two parallel plates. Cathode rays are directed into this field, parallel to the plates. + cathode rays – In which direction are the cathode rays deflected by the electric field? A downwards B upwards C into the page D out of the page

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2010

28 The diagram shows a circuit containing two ammeters and three resistors. ammeter ammeter A A X Y R1 R2 R3 Which of the ammeters will show the current in resistor R2? A ammeter X only B ammeter Y only C both ammeter X and ammeter Y D neither ammeter X nor ammeter Y

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

29 A circuit contains two resistors connected in parallel with a battery. R P 2 Ω Q 4 Ω Which of the following statements about the currents at P, Q and R is true? A The current at P is the greatest. B The current at Q is the greatest. C The current at R is the greatest. D The current is the same at points P, Q and R.

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

30 A potential difference (p.d.) across a resistor causes a current in it. resistor current p.d. The p.d. and the resistance of the resistor can both be changed. Which row shows two changes that will both increase the current in the resistor? change change A decrease p.d. decrease resistance B decrease p.d. increase resistance C increase p.d. decrease resistance D increase p.d. increase resistance

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

31 The potential divider shown is connected across a constant 12 V supply. V1 20 Ω 12 V V2 R When R has a value of 20 Ω, the voltmeter readings are equal. How do these readings change when the value of R is reduced to 10 Ω? reading on V1 reading on V2 A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2010

32 Which component can store energy and can be used in time-delay circuits? A a capacitor B a potentiometer C a resistor D a thermistor

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2010

37 An electric field is set up between two parallel plates. Cathode rays are directed into this field, parallel to the plates. + cathode rays – In which direction are the cathode rays deflected by the electric field? A downwards B upwards C into the page D out of the page

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2010

27 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery and the ammeter can be ignored. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/11 May/June 2011

28 A polythene rod repels an inflated balloon hanging from a nylon thread. What charges must the rod and the balloon carry? A The rod and the balloon carry opposite charges. B The rod and the balloon carry like charges. C The rod is charged but the balloon is not. D The balloon is charged but the rod is not.

1 marks

Answer: B

This question in 0625/11 May/June 2011

31 The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance of the thermistor changes with temperature. resistance temperature As the thermistor becomes warmer, what happens to its resistance and what happens to the reading on the voltmeter? resistance voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/11 May/June 2011

36 The diagram shows a cathode-ray tube. power supply Y vacuum screen X What are the correct labels for X and for Y? X Y A negative anode positive cathode B negative cathode positive anode C positive anode negative cathode D positive cathode negative anode

1 marks

Answer: B

This question in 0625/11 May/June 2011

37 A beam of cathode rays passes between two parallel metal plates connected to a high-voltage d.c. power supply. Which path does the beam follow? C + + + + + + D cathode B rays A

1 marks

Answer: C

This question in 0625/11 May/June 2011

25 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery and the ammeter can be ignored. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/12 May/June 2011

27 Which circuit includes a capacitor and what does the capacitor do in this circuit? what the circuit capacitor does A potential divider stores current B potential divider stores energy C time delay stores current D time delay stores energy

1 marks

Answer: D

This question in 0625/12 May/June 2011

29 The diagram shows a thermistor in a potential divider. A voltmeter is connected across the thermistor. V The graph shows how the resistance of the thermistor changes with temperature. resistance temperature As the thermistor becomes warmer, what happens to its resistance and what happens to the reading on the voltmeter? resistance voltmeter reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/12 May/June 2011

30 A polythene rod repels an inflated balloon hanging from a nylon thread. What charges must the rod and the balloon carry? A The rod and the balloon carry opposite charges. B The rod and the balloon carry like charges. C The rod is charged but the balloon is not. D The balloon is charged but the rod is not.

1 marks

Answer: B

This question in 0625/12 May/June 2011

39 A beam of cathode rays passes between two parallel metal plates connected to a high-voltage d.c. power supply. Which path does the beam follow? C + + + + + + D cathode B rays A

1 marks

Answer: C

This question in 0625/12 May/June 2011

40 The diagram shows a cathode-ray tube. power supply Y vacuum screen X What are the correct labels for X and for Y? X Y A negative anode positive cathode B negative cathode positive anode C positive anode negative cathode D positive cathode negative anode

1 marks

Answer: B

This question in 0625/12 May/June 2011

25 An ammeter and an 18 Ω resistor are connected in series with a battery. The reading on the ammeter is 0.50 A. The resistance of the battery and the ammeter can be ignored. A 18 Ω What is the electromotive force (e.m.f.) of the battery? A 9.0 N B 9.0 V C 36 N D 36 V

1 marks

Answer: B

This question in 0625/13 May/June 2011

29 Which of these is an electric current? A a beam of atoms B a beam of electrons C a beam of molecules D a beam of neutrons

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2012

30 The diagram shows a circuit used to find the resistance of lamp L. Blocks P, Q and R represent the different components used. 12 V P R L Q Which is a correct possible choice of components to use for P, Q and R? P Q R A ammeter variable resistor voltmeter B variable resistor voltmeter ammeter C voltmeter ammeter variable resistor D voltmeter variable resistor ammeter

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2012

34 An electric oven is connected to the mains supply using insulated copper wires. The wires become very warm. What can be done to prevent so much heat being produced in the connecting wires? A Use thicker copper wires. B Use thinner copper wires. C Use thicker insulation. D Use thinner insulation.

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2012

27 Which of these is an electric current? A a beam of atoms B a beam of electrons C a beam of molecules D a beam of neutrons

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

29 The diagram shows two voltmeters, P and Q, connected to a potential divider. V voltmeter P X V voltmeter Q The sliding connection at point X is moved towards the top of the diagram. What happens to the reading on P and to the reading on Q? reading on P reading on Q A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

30 The diagram shows a circuit used to find the resistance of lamp L. Blocks P, Q and R represent the different components used. 12 V P R L Q Which is a correct possible choice of components to use for P, Q and R? P Q R A ammeter variable resistor voltmeter B variable resistor voltmeter ammeter C voltmeter ammeter variable resistor D voltmeter variable resistor ammeter

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2012

36 An electric oven is connected to the mains supply using insulated copper wires. The wires become very warm. What can be done to prevent so much heat being produced in the connecting wires? A Use thicker copper wires. B Use thinner copper wires. C Use thicker insulation. D Use thinner insulation.

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2012

37 A beam of cathode rays passes between two parallel, charged metal plates in a vacuum. cathode rays – + – + – + – + – + – + – + – + – + – + In which direction is the beam deflected? A into the page B out of the page C to the left of the page D to the right of the page

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2012

5 Which row identifies quantities that are measured in newtons? electromotive force mass weight (e.m.f.) A no no yes B no yes yes C yes no no D yes yes no

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2012

29 Which is the worst electrical conductor? A aluminium B carbon (graphite) C iron D sulfur

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2012

30 The circuit shows a 24 V battery connected to two resistors in series. A R V The reading on the ammeter is 2.0 A and the reading on the voltmeter is 8.0 V. What is the resistance of resistor R? A 0.25 Ω B 4.0 Ω C 10 Ω D 16 Ω

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2012

33 The diagram shows a potential divider circuit. V The temperature of the thermistor increases. What happens to the resistance of the thermistor, and what happens to the reading on the voltmeter? resistance of voltmeter thermistor reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2012

34 An electric oven is connected to the mains supply using insulated copper wires. The wires become very warm. What can be done to prevent so much heat being produced in the connecting wires? A Use thicker copper wires. B Use thinner copper wires. C Use thicker insulation. D Use thinner insulation.

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2012

37 The metal filament shown is heated by passing a current through it. This makes it hot and it releases electrons. metal filament vacuum What is the name of this process of releasing electrons? A convection B evaporation C radioactive emission D thermionic emission

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2012

28 Three charged balls, P, Q and R are suspended by insulating threads. Ball P is negatively charged. Ball Q is brought close to ball P. insulating thread P – Q Ball Q is now brought close to ball R. Q R What are the charges on ball Q and on ball R? ball Q ball R A positive positive B positive negative C negative positive D negative negative

1 marks

Answer: C

This question in 0625/11 May/June 2013

29 Which circuit could be used to determine the resistance of the resistor R? A B V A R R A V C D V A R R V A

1 marks

Answer: B

This question in 0625/11 May/June 2013

30 Which copper wire would have the smallest resistance? A a long, thick wire B a long, thin wire C a short, thick wire D a short, thin wire

1 marks

Answer: C

This question in 0625/11 May/June 2013

31 The diagram shows an electrical circuit. L M N P O Between which two points must a voltmeter be connected to find the potential difference across the bell? A L and M B M and N C N and O D O and P

1 marks

Answer: D

This question in 0625/11 May/June 2013

32 The reading on the ammeter in the circuit is 1.0 A. A second ammeter is connected in the circuit. It also reads 1.0 A. At which labelled point is it connected? 1.0 A A A D B C

1 marks

Answer: D

This question in 0625/11 May/June 2013

28 Three charged balls, P, Q and R are suspended by insulating threads. Ball P is negatively charged. Ball Q is brought close to ball P. insulating thread P – Q Ball Q is now brought close to ball R. Q R What are the charges on ball Q and on ball R? ball Q ball R A positive positive B positive negative C negative positive D negative negative

1 marks

Answer: C

This question in 0625/12 May/June 2013

29 Which group contains only good electrical conductors? A air, carbon (graphite), plastic B air, gold, mercury C carbon (graphite), copper, mercury D copper, gold, plastic

1 marks

Answer: C

This question in 0625/12 May/June 2013

30 A student investigates a circuit that contains two parallel resistors. The circuit includes meters R, S and T which are all connected correctly. R S T resistors Which types of meter are R, S and T? meter R meter S meter T A ammeter ammeter ammeter B ammeter voltmeter voltmeter C voltmeter ammeter ammeter D voltmeter voltmeter voltmeter

1 marks

Answer: A

This question in 0625/12 May/June 2013

37 The diagram shows an experiment to demonstrate electromagnetic induction. X A wire N S Y X and Y are joined, in turn, by four wires, each made of a different material. Each wire is then moved quickly downwards between the magnets. Which material will not give rise to an induced current in the wire? A aluminium B copper C iron D nylon

1 marks

Answer: D

This question in 0625/12 May/June 2013

38 A beam of cathode rays passes between two charged metal plates. + cathode rays – What happens to the beam as it passes between the plates? A It is deflected into the paper. B It is deflected out of the paper. C It is deflected towards the negative plate. D It is deflected towards the positive plate.

1 marks

Answer: D

This question in 0625/12 May/June 2013

28 Three charged balls, P, Q and R are suspended by insulating threads. Ball P is negatively charged. Ball Q is brought close to ball P. insulating thread P – Q Ball Q is now brought close to ball R. Q R What are the charges on ball Q and on ball R? ball Q ball R A positive positive B positive negative C negative positive D negative negative

1 marks

Answer: C

This question in 0625/13 May/June 2013

29 Which copper wire would have the smallest resistance? A a long, thick wire B a long, thin wire C a short, thick wire D a short, thin wire

1 marks

Answer: C

This question in 0625/13 May/June 2013

30 The diagram shows an electrical circuit. L M N P O Between which two points must a voltmeter be connected to find the potential difference across the bell? A L and M B M and N C N and O D O and P

1 marks

Answer: D

This question in 0625/13 May/June 2013

31 Which circuit could be used to determine the resistance of the resistor R? A B V A R R A V C D V A R R V A

1 marks

Answer: B

This question in 0625/13 May/June 2013

33 The reading on the ammeter in the circuit is 1.0 A. A second ammeter is connected in the circuit. It also reads 1.0 A. At which labelled point is it connected? 1.0 A A A D B C

1 marks

Answer: D

This question in 0625/13 May/June 2013

37 In a cathode-ray tube, particles are fired at a screen. What are these particles? A α-particles B electrons C neutrons D protons

1 marks

Answer: B

This question in 0625/13 May/June 2013

38 The diagram shows an experiment to demonstrate electromagnetic induction. X A wire N S Y X and Y are joined, in turn, by four wires, each made of a different material. Each wire is then moved quickly downwards between the magnets. Which material will not give rise to an induced current in the wire? A aluminium B copper C iron D nylon

1 marks

Answer: D

This question in 0625/13 May/June 2013

28 Which equation can be used to calculate the resistance R of a resistor? A V = I ÷ R B I = V × R C R = V × I D V = I × R

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2013

29 A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor. She has the resistor, the battery and some connecting wires. What else does she need? A a force meter (newton meter) and a voltmeter B an ammeter and a voltmeter C an ammeter only D a voltmeter only

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2013

30 Two similar balloons hang side by side, on insulating threads, a short distance apart. They are both rubbed with the same dry cloth and become charged. Which diagram shows how the balloons hang after charging? A B C D

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2013

31 When the thermistor in the circuit below is heated, the current in the lamp increases. Why does this happen? A The resistance of the lamp decreases. B The resistance of the lamp increases. C The resistance of the thermistor decreases. D The resistance of the thermistor increases.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2013

32 A student connects various resistors in parallel pairs. Underneath each diagram is a statement about the total resistance of each pair of resistors. Which statement is correct? A B 2 Ω 5 Ω 2 Ω 1 Ω The total resistance is 4 Ω. The total resistance is between 1 Ω and 5 Ω. C D 10 Ω 20 Ω 5 Ω 10 Ω The total resistance is less than 5 Ω. The total resistance is more than 20 Ω.

1 marks

Answer: C

This question in 0625/11 Oct/Nov 2013

38 The diagram shows a cathode-ray tube used to produce cathode rays. filament (cathode) anode + cathode-ray tube current I power supply – + – metal plates Which change would increase the deflection of the cathode rays? A decreasing the current I in the filament B increasing the current I in the filament C increasing the potential difference between the filament and the anode D increasing the potential difference between the metal plates

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2013

28 Which equation can be used to calculate the resistance R of a resistor? A V = I ÷ R B I = V × R C R = V × I D V = I × R

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2013

29 A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor. She has the resistor, the battery and some connecting wires. What else does she need? A a force meter (newton meter) and a voltmeter B an ammeter and a voltmeter C an ammeter only D a voltmeter only

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2013

30 When the thermistor in the circuit below is heated, the current in the lamp increases. Why does this happen? A The resistance of the lamp decreases. B The resistance of the lamp increases. C The resistance of the thermistor decreases. D The resistance of the thermistor increases.

1 marks

Answer: C

This question in 0625/12 Oct/Nov 2013

31 Two similar balloons hang side by side, on insulating threads, a short distance apart. They are both rubbed with the same dry cloth and become charged. Which diagram shows how the balloons hang after charging? A B C D

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2013

40 The diagram shows a cathode-ray tube used to produce cathode rays. filament (cathode) anode + cathode-ray tube current I power supply – + – metal plates Which change would increase the deflection of the cathode rays? A decreasing the current I in the filament B increasing the current I in the filament C increasing the potential difference between the filament and the anode D increasing the potential difference between the metal plates

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2013

28 A negatively charged plastic rod P is placed above a positively charged plastic rod Q. P – – – – – Q + + + + + What are the directions of the electrostatic forces on rod P and on rod Q? electrostatic force electrostatic force on rod P on rod Q A downwards downwards B downwards upwards C upwards downwards D upwards upwards

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2013

29 A student wishes to measure first the electromotive force (e.m.f.) of a battery, and then the potential difference (p.d.) across a resistor. She has the resistor, the battery and some connecting wires. What else does she need? A a force meter (newton meter) and a voltmeter B an ammeter and a voltmeter C an ammeter only D a voltmeter only

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2013

30 Two similar balloons hang side by side, on insulating threads, a short distance apart. They are both rubbed with the same dry cloth and become charged. Which diagram shows how the balloons hang after charging? A B C D

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2013

32 The diagram shows a circuit. A What should be increased to increase the current in the circuit? A the e.m.f. of the battery B the length of the connecting wires C the resistance of the resistor D the temperature of the resistor

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2013

34 An electric motor is connected to the mains supply by insulated wires. The circuit is protected by a fuse, but the connecting wires become hot. insulated connecting wire live M motor neutral insulated connecting wire How could the wires be prevented from becoming so hot? A Connect a second fuse in the neutral wire. B Use a fuse with a higher current rating. C Use thicker connecting wires. D Use thicker insulation on the connecting wires.

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2013

38 The diagram shows the screen of a cathode-ray tube. Cathode rays produced behind the screen strike the screen at P. On their way to the screen, the cathode rays pass between two parallel metal plates. screen P S Which arrangement of the metal plates will cause the beam to be deflected and strike the screen at S? A B C D + – + – – + – +

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2013

27 A plastic rod and a dry cloth are uncharged. The rod is now rubbed with the cloth and they both become charged. The rod becomes negatively charged because some charged particles move from the cloth to the rod. What is the charge on the cloth and which particles moved in the charging process? charge on particles that cloth moved A negative electrons B negative neutrons C positive electrons D positive neutrons

1 marks

Answer: C

This question in 0625/11 May/June 2014

28 The diagram shows an incomplete circuit. X Y A Four wires of different length and thickness are connected in turn between point X and point Y. All four wires are made of the same metal. Which wire will cause the greatest reading on the ammeter? A long and thick B long and thin C short and thick D short and thin

1 marks

Answer: C

This question in 0625/11 May/June 2014

29 The diagram shows a circuit containing a battery, a lamp, a switch and another component X. The switch is initially closed and the lamp is lit. The switch is now opened and the lamp remains lit for several seconds before slowly going out. component X What is component X? A a capacitor B a light-dependent resistor C a thermistor D a variable resistor

1 marks

Answer: A

This question in 0625/11 May/June 2014

31 The diagram shows part of an electric circuit. 12 V V 0 V The light falling on the light-dependent resistor (LDR) increases in brightness. What happens to the resistance of the LDR and what happens to the reading on the voltmeter? resistance of reading on LDR voltmeter A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/11 May/June 2014

32 Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D

1 marks

Answer: B

This question in 0625/11 May/June 2014

37 A beam of cathode rays passes between two parallel metal plates connected to a high-voltage d.c. power supply. Which path does the beam follow? metal plate B + + + + + + A cathode C rays D metal plate

1 marks

Answer: B

This question in 0625/11 May/June 2014

28 Two balloons, X and Y, are suspended by insulating threads. They are each held near a negatively charged balloon. The balloons hang as shown. insulating insulating threads threads – – – – – – – – – – – – – X – – Y ––– – – – – – – What is the charge on balloon X and what is the charge on balloon Y? balloon X balloon Y A negative negative B negative positive C positive negative D positive positive

1 marks

Answer: B

This question in 0625/12 May/June 2014

29 Which quantities is a voltmeter used to measure? A current and e.m.f. only B current and p.d. only C e.m.f. and p.d. only D e.m.f., current and p.d

1 marks

Answer: C

This question in 0625/12 May/June 2014

37 A beam of cathode rays passes between two parallel metal plates connected to a high-voltage d.c. power supply. Which path does the beam follow? metal plate B + + + + + + A cathode C rays D metal plate

1 marks

Answer: B

This question in 0625/12 May/June 2014

25 A plastic rod and a dry cloth are uncharged. The rod is now rubbed with the cloth and they both become charged. The rod becomes negatively charged because some charged particles move from the cloth to the rod. What is the charge on the cloth and which particles moved in the charging process? charge on particles that cloth moved A negative electrons B negative neutrons C positive electrons D positive neutrons

1 marks

Answer: C

This question in 0625/13 May/June 2014

27 Which labelled component in the circuit shown controls the brightness of lamp X? A V X B C D

1 marks

Answer: B

This question in 0625/13 May/June 2014

28 The diagram shows part of an electric circuit. 12 V V 0 V The light falling on the light-dependent resistor (LDR) increases in brightness. What happens to the resistance of the LDR and what happens to the reading on the voltmeter? resistance of reading on LDR voltmeter A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: B

This question in 0625/13 May/June 2014

29 The diagram shows an incomplete circuit. X Y A Four wires of different length and thickness are connected in turn between point X and point Y. All four wires are made of the same metal. Which wire will cause the greatest reading on the ammeter? A long and thick B long and thin C short and thick D short and thin

1 marks

Answer: C

This question in 0625/13 May/June 2014

40 A beam of cathode rays passes between two parallel metal plates connected to a high-voltage d.c. power supply. Which path does the beam follow? metal plate B + + + + + + A cathode C rays D metal plate

1 marks

Answer: B

This question in 0625/13 May/June 2014

28 Which row gives the unit for energy and the unit for electromotive force (e.m.f.)? energy e.m.f. A J N B J V C W N D W V

1 marks

Answer: B

This question in 0625/11 Oct/Nov 2014

29 A student carries out an experiment to investigate the resistance of a resistor R. She takes a series of readings of potential difference (p.d.) and current, and plots a graph of her results. Which circuit should she use? A B V A A R R V C D A V A R R V

1 marks

Answer: A

This question in 0625/11 Oct/Nov 2014

30 The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in parallel. 6.0 V A 3.0 Ω 2.0 Ω The switch is open, and the ammeter reads 2.0 A. The switch is now closed and the ammeter reads the total current in both resistors. What is the ammeter reading with the switch closed? A 1.2 A B 3.0 A C 4.0 A D 5.0 A

1 marks

Answer: D

This question in 0625/11 Oct/Nov 2014

19 The diagram shows a circuit with a 3.0 Ω resistor and a 2.0 Ω resistor connected in parallel. 6.0 V A 3.0 Ω 2.0 Ω The switch is open, and the ammeter reads 2.0 A. The switch is now closed and the ammeter reads the total current in both resistors. What is the ammeter reading with the switch closed? A 1.2 A B 3.0 A C 4.0 A D 5.0 A

1 marks

Answer: D

This question in 0625/12 Oct/Nov 2014

25 The current in a kettle is 10 A and it is protected by a 13 A fuse. The owner of the kettle replaces the 13 A fuse with a 3 A fuse. What happens when the kettle is switched on? A The fuse blows and the kettle is damaged. B The fuse blows and the kettle is undamaged. C The fuse does not blow and the kettle works correctly. D The fuse does not blow but the kettle fails to work.

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2014

32 Which row gives the unit for energy and the unit for electromotive force (e.m.f.)? energy e.m.f. A J N B J V C W N D W V

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2014

36 A student carries out an experiment to investigate the resistance of a resistor R. She takes a series of readings of potential difference (p.d.) and current, and plots a graph of her results. Which circuit should she use? A B V A A R R V C D A V A R R V

1 marks

Answer: A

This question in 0625/12 Oct/Nov 2014

40 In a cathode-ray tube, a hot tungsten cathode releases particles by thermionic emission. What are these particles? A α-particles B electrons C protons D tungsten atoms

1 marks

Answer: B

This question in 0625/12 Oct/Nov 2014

28 Four wires are made from the same material. Which wire has the least resistance? diameter of length of wire / mm wire / cm A 0.2 100 B 0.2 200 C 0.4 100 D 0.4 200

1 marks

Answer: C

This question in 0625/13 Oct/Nov 2014

29 A 30 Ω resistor is connected in series with another resistor and a 6.0 V battery. The current in the circuit is 0.12 A. A voltmeter is connected across the other resistor. 6.0 V 0.12 A 30 Ω V What is the reading on the voltmeter? A 2.4 V B 3.6 V C 6.0 V D 9.6 V

1 marks

Answer: A

This question in 0625/13 Oct/Nov 2014

30 A circuit contains four ammeters A, B, C and D, and three resistors with different values. Which ammeter shows the largest reading? A A D 10 Ω A B A 20 Ω 30 Ω A C

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2014

32 The diagram shows a circuit with a fixed resistor connected in series with a light-dependent resistor (LDR). A voltmeter is connected across the LDR. V A bright lamp shines light onto the LDR. The lamp is then switched off and this causes the voltmeter reading to change. Which row shows the change in the resistance of the LDR and the change in the voltmeter reading when the lamp is switched off? resistance of voltmeter LDR reading A decreases decreases B decreases increases C increases decreases D increases increases

1 marks

Answer: D

This question in 0625/13 Oct/Nov 2014

37 In a cathode-ray tube, a hot tungsten cathode releases particles by thermionic emission. What are these particles? A α-particles B electrons C protons D tungsten atoms

1 marks

Answer: B

This question in 0625/13 Oct/Nov 2014

27 A teacher wishes to show the production of electrostatic charges. She holds a rod and rubs it with a cotton cloth. A copper rod, a glass rod, a plastic rod and a steel rod are available. Which two rods would both be suitable to use? A a copper rod and a glass rod B a glass rod and a plastic rod C a plastic rod and a copper rod D a plastic rod and a steel rod

1 marks

Answer: B

This question in 0625/12 Feb/March 2015

28 A student wishes to determine the resistance of a resistor. She uses an ammeter and a voltmeter in a circuit. In which circuit are the ammeter and voltmeter connected correctly? A B A A V V C D V A A V

1 marks

Answer: B

This question in 0625/12 Feb/March 2015

29 A battery is connected to two crocodile clips and a lamp. There is a gap between the crocodile clips. crocodile clips Four cylinders W, X, Y and Z are made of the same metal but have different dimensions. The cylinders are connected in turn, by their ends, between the crocodile clips. The diagrams of the cylinders are all drawn to the same scale. W X Y Z Which cylinder makes the lamp glow most brightly and which cylinder makes the lamp glow least brightly? most brightly least brightly A W Y B W Z C X Y D X Z

1 marks

Answer: C

This question in 0625/12 Feb/March 2015

37 What happens in the process of thermionic emission? A Complete molecules are emitted from the surface of a hot liquid. B Single atoms are emitted from the surface of a hot liquid. C Electrons are emitted from the surface of a hot metal. D Protons are emitted from the surface of a hot metal.

1 marks

Answer: C

This question in 0625/12 Feb/March 2015

27 The diagram shows a piece of metal resistance wire. Which wire, made of the same metal, has a smaller resistance? A a wire of the same length with a larger diameter B a wire of the same length with a smaller diameter C a wire of greater length with the same diameter D a wire of greater length with a smaller diameter

1 marks

Answer: A

This question in 0625/11 May/June 2015

28 What is the unit of electromotive force (e.m.f.)? A ampere B joule C volt D watt

1 marks

Answer: C

This question in 0625/11 May/June 2015

29 The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the current in the battery? A 0.50 A B 0.75 A C 1.5 A D 2.0 A

1 marks

Answer: A

This question in 0625/11 May/June 2015

37 The diagram shows a design for a cathode-ray tube. A tube with this design does not work. power supply heated anode vacuum cold cathode Which change should be made so that the tube works properly to produce cathode rays? A Heat the cathode instead of the anode. B Reverse the connections of the power supply. C Use air in the tube instead of a vacuum. D Use an a.c. power supply instead of a d.c. power supply.

1 marks

Answer: A

This question in 0625/11 May/June 2015

27 A student has wires of different lengths and different diameters. The wires are all made of the same metal. The student measures the resistance of one wire. Which wire has a greater resistance than the wire he has measured? A a shorter wire with a larger diameter B a shorter wire with the same diameter C a wire of the same length with a larger diameter D a wire of the same length with a smaller diameter

1 marks

Answer: D

This question in 0625/12 May/June 2015

28 The circuit diagram shows a 4.0 Ω resistor and an 8.0 Ω resistor connected to a 6.0 V battery. 6.0 V 4.0 Ω 8.0 Ω What is the potential difference (p.d.) across the 4.0 Ω resistor? A 0.5 V B 2.0 V C 4.0 V D 6.0 V

1 marks

Answer: D

This question in 0625/12 May/June 2015

29 Diagram 1 shows two thin, uncharged strips of plastic. Diagram 2 shows the same strips after they have been rubbed with a dry cloth. strips of plastic diagram 1 diagram 2 Which row describes the charge on the strips after rubbing, and the force between the strips after rubbing? charge on strips force between strips A opposite attraction B opposite repulsion C the same attraction D the same repulsion

1 marks

Answer: D

This question in 0625/12 May/June 2015

31 Two 5.0 Ω resistors are connected as shown in the diagram. 5.0 Ω 5.0 Ω What is the total resistance of this combination? A less than 5.0 Ω B 5.0 Ω C more than 5.0 Ω but less than 10.0 Ω D 10.0 Ω

1 marks

Answer: A

This question in 0625/12 May/June 2015

32 The diagram shows a 10 Ω resistor and a 20 Ω resistor connected in a potential divider circuit. 10 Ω 12.0 V 20 Ω V What is the reading on the voltmeter? A 4.0 V B 6.0 V C 8.0 V D 12.0 V

1 marks

Answer: C

This question in 0625/12 May/June 2015

37 The diagram shows a cathode-ray tube. power supply vacuum heated cold cathode anode The tube is not working properly. Which change should be made so that the tube works properly to produce a continuous beam of cathode rays? A Heat the anode instead of the cathode. B Reverse the connections of the power supply. C Use an a.c. power supply instead of a d.c. power supply. D Use air in the tube instead of a vacuum.

1 marks

Answer: B