Simple phenomena of magnetism — Paper 1 · IGCSE Physics (9-1) 0972

27 A permanent magnet is placed close to a bar of soft iron. permanent S N P Q soft iron bar magnet What are the polarities of end P and of end Q? end P end Q A N N B N S C S N D S S

1 marks

Answer: C

This question in 0972/11 May/June 2018

28 Which metal is used for the core of an electromagnet? A copper B iron C magnesium D steel

1 marks

Answer: B

This question in 0972/11 May/June 2018

30 A plastic rod is rubbed with a cloth. The rod becomes positively charged. What happens to the plastic rod and what is the charge on the cloth? plastic rod charge on cloth A gains electrons negative B gains electrons positive C loses electrons negative D loses electrons positive

1 marks

Answer: C

This question in 0972/11 May/June 2018

28 Why is soft iron used for the core of an electromagnet? A Soft iron easily becomes a permanent magnet. B Soft iron is a good electrical conductor. C Soft iron is a poor thermal conductor. D Soft iron loses its magnetism when the current in the coil is switched off.

1 marks

Answer: D

This question in 0972/11 May/June 2019

29 An iron ball on a horizontal wooden table rolls near the north pole of a bar magnet which is lying on the table. Which diagram shows the most likely path of the ball, as seen from above the table? A B magnet S magnet S N N ball ball C D magnet S magnet S N N ball ball stops here

1 marks

Answer: B

This question in 0972/11 May/June 2019

37 Four small compasses are placed around a solenoid. solenoid A current is now switched on in the solenoid. Which diagram shows possible new directions of the compass needles? A B C D

1 marks

Answer: D

This question in 0972/11 May/June 2019

27 A student has a bar magnet. He brings the magnet close to an object. The magnet and the object repel each other. What must the object be? A another permanent magnet B any magnetic material C a block of wood D a piece of copper

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2019

28 Two soft-iron rods are placed end-to-end inside a coil. The coil is connected to a battery. coil soft-iron rod soft-iron rod The connections from the battery to the coil are now reversed. What happens to the soft-iron rods in each case? battery connections battery connections as shown reversed A rods attract rods attract B rods attract rods repel C rods repel rods attract D rods repel rods repel

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2019

35 A student investigates the output voltage induced across a coil of wire by a bar magnet. When will the induced voltage have the greatest value? A The student slowly moves the bar magnet into the coil of wire. B The student leaves the bar magnet stationary in the coil of wire. C The student quickly removes the bar magnet from the coil of wire. D The student places the bar magnet at rest outside the coil of wire.

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2019

36 There is a current in a wire. The direction of the current is out of the page. Which diagram shows the magnetic field pattern produced? A B key wire carrying a current out of the page C D

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2019

27 A permanent magnet is to be made. Which row gives the correct material to use and the correct reason for choosing this material? material reason A soft iron easy to demagnetise B soft iron hard to demagnetise C steel easy to demagnetise D steel hard to demagnetise

1 marks

Answer: D

This question in 0972/11 May/June 2020

28 Four nails A, B, C and D are tested to find which makes the strongest permanent magnet. One of the nails is placed against a bar magnet and the number of paper clips which the nail can support is recorded. nail N S bar magnet paper clips The bar magnet is then removed and the number of paper clips remaining attached to the nail is recorded. Each nail is tested individually. Which nail becomes the strongest permanent magnet? number of paper clips attached to the nail bar magnet present bar magnet removed A 2 0 B 2 1 C 4 3 D 5 2

1 marks

Answer: C

This question in 0972/11 May/June 2020

30 Each of the four diagrams M, N, O and P shows a separate pair of insulating rods. Each rod is charged as shown. diagram M diagram N – – – – – – + + + – – + – – – – – – + + + diagram O diagram P – – – + + + + + + + + + – + + + – – – + + + + + + + + + In which two arrangements do the pairs of rods experience a force of repulsion? A M and N B O and P C M and P D N and O

1 marks

Answer: C

This question in 0972/11 May/June 2020

36 A conducting wire is placed between the poles of a magnet. When an electric current in the wire is in the direction shown, then the force on the wire acts out of the page. wire N S Three statements of different conditions and how the wire is affected are given. 1 The current is towards the top of the page and the direction of the magnetic field is unchanged then the force produced acts into the page. 2 The current is towards the bottom of the page and the magnetic field is reversed then the force produced acts into the page. 3 The current in the wire is alternating and the wire vibrates into and out of the page. Which statements are correct? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0972/11 May/June 2020

27 The diagrams show two bar magnets which are attracting each other. Which diagram shows the magnetic field pattern between the poles? A B S N S N S N S N C D S N S N S N S N

1 marks

Answer: A

This question in 0972/12 May/June 2020

28 Four nails A, B, C and D are tested to find which makes the strongest permanent magnet. One of the nails is placed against a bar magnet and the number of paper clips which the nail can support is recorded. nail N S bar magnet paper clips The bar magnet is then removed and the number of paper clips remaining attached to the nail is recorded. Each nail is tested individually. Which nail becomes the strongest permanent magnet? number of paper clips attached to the nail bar magnet present bar magnet removed A 2 0 B 2 1 C 4 3 D 5 2

1 marks

Answer: C

This question in 0972/12 May/June 2020

27 Two soft-iron pins are suspended from the S pole of a bar magnet. Which diagram shows how the pins are deflected? A B C D S S S S

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2020

28 A student uses three small plotting compasses to investigate the magnetic field around a bar magnet. Which diagram shows the directions in which the compass needles point? A B N S N S C D N S N S

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2020

34 An electromagnet is positioned close to a coil of wire. electromagnet coil The electromagnet is switched on, remains on for a short time, and is then switched off. Three statements about the pointer on the galvanometer during this sequence are given. 1 The pointer kicks to one side as the electromagnet is switched on. 2 The pointer records a steady non-zero value while the electromagnet remains switched on. 3 The pointer kicks to the other side as the electromagnet is switched off. Which statements are correct? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2020

36 The diagrams show a current-carrying wire with an arrow in the direction of the current. Which diagram shows the magnetic field produced by the current? A B magnetic magnetic field lines field lines wire wire C D magnetic magnetic field lines field lines wire wire

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2020

25 A bar magnet is brought near to a rod of unknown material. The unknown rod is attracted to both ends of the bar magnet. rod of unknown material magnet Which material is the bar made from? A aluminium B magnetised steel C unmagnetised iron D plastic

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2021

26 Point X is near to a bar magnet, as shown. X N S Which arrow indicates the direction of the magnetic field of the bar magnet at point X? A B C D

1 marks

Answer: D

This question in 0972/11 May/June 2022

27 A student counts how many iron pins an electromagnet picks up when its power supply is switched on. Then, she counts how many pins are picked up when the power supply is switched off. core d.c. power d.c. power supply on supply off iron pins She repeats the experiment using cores made of different materials. The results are shown. Which core is made out of soft iron? pins picked up with pins picked up with the power supply on the power supply off A 0 0 B 2 7 C 8 5 D 12 0

1 marks

Answer: D

This question in 0972/11 May/June 2022

28 The diagram shows a charged plastic rod and an uncharged metal sphere. The metal sphere is suspended by an insulating thread. insulating thread + + + + + plastic rod metal sphere The plastic rod is then moved close to the metal sphere. Which row is correct? the overall state of observation the metal sphere A The rod attracts the sphere. charged B The rod attracts the sphere. uncharged C The rod repels the sphere. charged D The rod repels the sphere. uncharged

1 marks

Answer: B

This question in 0972/11 May/June 2022

36 The diagrams show patterns around a straight wire carrying a current perpendicularly out of the page. Which pattern represents the magnetic field due to the current in the wire? A B C D

1 marks

Answer: B

This question in 0972/11 May/June 2022

37 A current-carrying coil in a magnetic field experiences a turning effect. Three suggestions for increasing the turning effect are given. 1 Increase the number of turns on the coil. 2 Increase the current in the coil. 3 Increase the strength of the magnetic field. Which suggestions are correct? A 1 and 2 only B 1 and 3 only C 2 and 3 only D 1, 2 and 3

1 marks

Answer: D

This question in 0972/11 May/June 2022

26 The three diagrams each show two magnets. 1 2 S N N S S N S N 3 N S S N In which diagrams do the two magnets attract each other? A 1 only B 1 and 3 C 2 only D 2 and 3

1 marks

Answer: C

This question in 0972/12 May/June 2022

27 The diagram shows the magnetic fields around three objects, P, Q and R, placed close to each other. P Q R Which row shows the nature of each of the objects? P Q R permanent magnet permanent magnet A copper rod N S N S permanent magnet permanent magnet B copper rod N S S N permanent magnet permanent magnet C iron rod N S N S permanent magnet permanent magnet D iron rod N S S N

1 marks

Answer: B

This question in 0972/12 May/June 2022

28 Iron filings are picked up by an electromagnet. The current in the electromagnet is switched off and the filings fall on a plastic bench. A plastic comb is rubbed with a woollen cloth and held just above the iron filings. Some of the filings jump and stick to the comb. Which statement correctly explains the last observation? A The comb has been electrically charged by rubbing with the cloth. B The comb has been magnetised by rubbing with the cloth. C The filings have been electrically charged by the electromagnet. D The filings have been magnetised by the electromagnet.

1 marks

Answer: A

This question in 0972/12 May/June 2022

23 An unmagnetised piece of soft iron is placed close to a strong permanent magnet, as shown. S N X permanent soft iron magnet What is the induced polarity of end X of the soft iron and in which direction does the magnetic force act on the soft iron? direction of force polarity of end X on the soft iron A N to the left B N to the right C S to the left D S to the right

1 marks

Answer: C

This question in 0972/11 May/June 2023

23 The magnetic field of a bar magnet can be represented by magnetic field lines. Which diagram shows two magnetic field lines correctly? A B C D N S N S N S N S

1 marks

Answer: A

This question in 0972/12 May/June 2023

24 Which metal could be used for a permanent magnet and which metal could be used for the core of an electromagnet? permanent core of magnet electromagnet A iron copper B iron steel C steel copper D steel iron

1 marks

Answer: D

This question in 0972/11 Oct/Nov 2023

25 Object 1 is given a negative charge and placed on a balance. Object 2, which is also charged, is brought close to object 1 and the reading on the balance changes as shown. object 2 object 1 93.5 g 92.9 g Which action would further decrease the reading on the balance? A Add the same number of electrons to both objects. B Remove the same number of electrons from both objects. C Transfer electrons from object 1 to object 2. D Transfer electrons from object 2 to object 1.

1 marks

Answer: D

This question in 0972/11 Oct/Nov 2023

35 α-particles, β-particles and γ-rays are emitted by radioactive nuclei when they decay. Which emissions can be deflected by an electric field? A α-particles, β-particles and γ-rays B α-particles and β-particles only C β-particles and γ-rays only D γ-rays and α-particles only

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2023

24 Which diagram shows the pattern and the direction of the magnetic field lines around a bar magnet? A B N S N S C D S N S N

1 marks

Answer: A

This question in 0972/11 May/June 2024

24 Small compasses are used to determine the direction of a magnetic field. Which diagram shows the direction that the compass needles point when placed near the N and S poles of a bar magnet? A B N S N S C D N S N S

1 marks

Answer: C

This question in 0972/12 May/June 2024

25 A metal bar is placed inside a current-carrying coil, as shown in diagram 1. There is a small current in the coil. The bar holds a few nails, as shown in diagram 2. nails diagram 1 diagram 2 When there is no current in the coil, the nails drop off. Which row is correct? metal from which effect of a larger the bar is made current in the coil A soft iron it makes no difference B soft iron the bar holds more nails C steel it makes no difference D steel the bar holds more nails

1 marks

Answer: B

This question in 0972/12 May/June 2024

24 A bar magnet is next to a steel bar. Some of the magnetic field lines due to the magnet are shown. steel bar X Y What are the correct poles of the magnet and would the steel bar attract or repel the bar magnet? X Y force A N pole S pole attraction B N pole S pole repulsion C S pole N pole attraction D S pole N pole repulsion

1 marks

Answer: A

This question in 0972/11 Oct/Nov 2024

32 The diagrams show a current-carrying wire with an arrow in the direction of the current. Which diagram shows the magnetic field produced by the current? A B magnetic magnetic field lines field lines wire wire C D magnetic magnetic field lines field lines wire wire

1 marks

Answer: B

This question in 0972/11 Oct/Nov 2024

33 What are the best materials to use for the construction of a transformer? A copper for the core and steel for the coils wound around it B copper for the core and copper for the coils wound around it C soft iron for the core and copper for the coils wound around it D steel for the core and copper for the coils wound around it

1 marks

Answer: C

This question in 0972/11 Oct/Nov 2024

25 Which row describes the magnetic properties of soft iron and steel? soft iron steel A easy to demagnetise easy to demagnetise B easy to demagnetise hard to demagnetise C hard to demagnetise easy to demagnetise D hard to demagnetise hard to demagnetise

1 marks

Answer: B

This question in 0972/11 May/June 2025

26 Two charged rods, X and Y, are brought, in turn, near to a negatively charged rod. X is attracted by the negatively charged rod, and Y is repelled. What are the charges on X and Y? charge on X charge on Y A negative negative B negative positive C positive negative D positive positive

1 marks

Answer: C

This question in 0972/11 May/June 2025

29 Which statement describes a magnetic field? A It is a region where all objects experience a force. B It is a region where all electric charges experience a force. C It is a region where all magnetic poles experience a force. D It is a region where all metals experience a force.

1 marks

Answer: C

This question in 0972/11 May/June 2025

30 A plastic rod is charged by friction. The plastic rod becomes positively charged. Which particles are transferred in this process? A atoms B electrons C protons D neutrons

1 marks

Answer: B

This question in 0972/11 May/June 2025

24 A student has a bar magnet and two metal blocks. The student places the bar magnet next to end W and end X of metal block 1. The student then places the bar magnet next to end Y and end Z of metal block 2. The diagram shows which ends of the metal blocks are attracted or repelled by the bar magnet. bar magnet attract N S W X metal block 1 attract N S X W attract N S Y Z metal block 2 repel N S Z Y Which metal blocks are bar magnets? A both metal block 1 and metal block 2 B metal block 1 only C metal block 2 only D neither metal block 1 nor metal block 2

1 marks

Answer: C

This question in 0972/12 May/June 2025