3.3· 155 questions · 155 marks · 186 min · 2005–2025· Multiple choice
Every Cambridge IGCSE Physics Paper 1 question on electromagnetic spectrum, laid out as 41 A4 pages with the mark scheme below. Nothing is left out. Free to read, no account.

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41 / 41Answers below. Sit the paper first if you are practising.
Pastlit
Physics 0625 · Electromagnetic spectrum — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
Pastlit
Physics 0625 · Electromagnetic spectrum — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
Pastlit
Physics 0625 · Electromagnetic spectrum — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
Pastlit
Physics 0625 · Electromagnetic spectrum — Paper 1
IGCSE · topical answer key — answer key (teacher use)
Question
Answer
Marks
| Question | Answer | Marks | From |
|---|---|---|---|
| 1 | A | 1 | 0625/11 May/June 2005 |
| 2 | C | 1 | 0625/11 Oct/Nov 2007 |
| 3 | A | 1 | 0625/11 May/June 2008 |
| 4 | B | 1 | 0625/11 Oct/Nov 2009 |
| 5 | B | 1 | 0625/12 Oct/Nov 2009 |
| 6 | B | 1 | 0625/11 Oct/Nov 2010 |
| 7 | B | 1 | 0625/12 Oct/Nov 2010 |
| 8 | B | 1 | 0625/13 Oct/Nov 2010 |
| 9 | D | 1 | 0625/13 Oct/Nov 2012 |
| 10 | D | 1 | 0625/11 May/June 2013 |
| 11 | B | 1 | 0625/11 May/June 2013 |
| 12 | A | 1 | 0625/12 May/June 2013 |
| 13 | B | 1 | 0625/12 May/June 2013 |
| 14 | D | 1 | 0625/13 May/June 2013 |
| 15 | B | 1 | 0625/13 May/June 2013 |
| 16 | B | 1 | 0625/11 Oct/Nov 2013 |
| 17 | B | 1 | 0625/12 Oct/Nov 2013 |
| 18 | A | 1 | 0625/13 Oct/Nov 2013 |
| 19 | D | 1 | 0625/11 May/June 2014 |
| 20 | A | 1 | 0625/11 May/June 2014 |
| 21 | D | 1 | 0625/12 May/June 2014 |
| 22 | D | 1 | 0625/12 May/June 2014 |
| 23 | A | 1 | 0625/13 May/June 2014 |
| 24 | D | 1 | 0625/11 Oct/Nov 2014 |
| 25 | D | 1 | 0625/12 Oct/Nov 2014 |
| 26 | A | 1 | 0625/13 Oct/Nov 2014 |
| 27 | D | 1 | 0625/12 Feb/March 2015 |
| 28 | C | 1 | 0625/12 Feb/March 2015 |
| 29 | C | 1 | 0625/11 May/June 2015 |
| 30 | A | 1 | 0625/11 May/June 2015 |
| 31 | A | 1 | 0625/12 May/June 2015 |
| 32 | A | 1 | 0625/13 May/June 2015 |
| 33 | D | 1 | 0625/14 May/June 2015 |
| 34 | B | 1 | 0625/11 Oct/Nov 2015 |
| 35 | A | 1 | 0625/12 Oct/Nov 2015 |
| 36 | D | 1 | 0625/13 Oct/Nov 2015 |
| 37 | D | 1 | 0625/13 Oct/Nov 2015 |
| 38 | C | 1 | 0625/12 Feb/March 2016 |
| 39 | C | 1 | 0625/11 May/June 2016 |
| 40 | A | 1 | 0625/11 May/June 2016 |
| 41 | B | 1 | 0625/11 May/June 2016 |
| 42 | C | 1 | 0625/12 May/June 2016 |
| 43 | A | 1 | 0625/12 May/June 2016 |
| 44 | B | 1 | 0625/12 May/June 2016 |
| 45 | C | 1 | 0625/13 May/June 2016 |
| 46 | A | 1 | 0625/13 May/June 2016 |
| 47 | B | 1 | 0625/11 Oct/Nov 2016 |
| 48 | A | 1 | 0625/11 Oct/Nov 2016 |
| 49 | C | 1 | 0625/12 Oct/Nov 2016 |
| 50 | B | 1 | 0625/12 Oct/Nov 2016 |
| 51 | C | 1 | 0625/13 Oct/Nov 2016 |
| 52 | B | 1 | 0625/13 Oct/Nov 2016 |
| 53 | A | 1 | 0625/12 Feb/March 2017 |
| 54 | A | 1 | 0625/11 May/June 2017 |
| 55 | A | 1 | 0625/12 May/June 2017 |
| 56 | A | 1 | 0625/13 May/June 2017 |
| 57 | D | 1 | 0625/11 Oct/Nov 2017 |
| 58 | C | 1 | 0625/11 Oct/Nov 2017 |
| 59 | A | 1 | 0625/12 Oct/Nov 2017 |
| 60 | D | 1 | 0625/13 Oct/Nov 2017 |
| 61 | D | 1 | 0625/13 Oct/Nov 2017 |
| 62 | B | 1 | 0625/11 May/June 2018 |
| 63 | B | 1 | 0625/12 May/June 2018 |
| 64 | A | 1 | 0625/13 May/June 2018 |
| 65 | A | 1 | 0625/11 Oct/Nov 2018 |
| 66 | B | 1 | 0625/11 Oct/Nov 2018 |
| 67 | A | 1 | 0625/12 Oct/Nov 2018 |
| 68 | B | 1 | 0625/12 Oct/Nov 2018 |
| 69 | A | 1 | 0625/13 Oct/Nov 2018 |
| 70 | B | 1 | 0625/13 Oct/Nov 2018 |
| 71 | C | 1 | 0625/12 Feb/March 2019 |
| 72 | B | 1 | 0625/11 May/June 2019 |
| 73 | B | 1 | 0625/12 May/June 2019 |
| 74 | B | 1 | 0625/13 May/June 2019 |
| 75 | B | 1 | 0625/13 May/June 2019 |
| 76 | D | 1 | 0625/11 Oct/Nov 2019 |
| 77 | D | 1 | 0625/12 Oct/Nov 2019 |
| 78 | A | 1 | 0625/12 Oct/Nov 2019 |
| 79 | C | 1 | 0625/13 Oct/Nov 2019 |
| 80 | D | 1 | 0625/13 Oct/Nov 2019 |
| 81 | C | 1 | 0625/11 May/June 2020 |
| 82 | A | 1 | 0625/11 May/June 2020 |
| 83 | A | 1 | 0625/12 May/June 2020 |
| 84 | B | 1 | 0625/13 May/June 2020 |
| 85 | A | 1 | 0625/13 May/June 2020 |
| 86 | B | 1 | 0625/11 Oct/Nov 2020 |
| 87 | D | 1 | 0625/11 Oct/Nov 2020 |
| 88 | B | 1 | 0625/12 Oct/Nov 2020 |
| 89 | A | 1 | 0625/13 Oct/Nov 2020 |
| 90 | B | 1 | 0625/12 Feb/March 2021 |
| 91 | B | 1 | 0625/12 May/June 2021 |
| 92 | A | 1 | 0625/11 Oct/Nov 2021 |
| 93 | C | 1 | 0625/11 Oct/Nov 2021 |
| 94 | D | 1 | 0625/12 Oct/Nov 2021 |
| 95 | A | 1 | 0625/12 Oct/Nov 2021 |
| 96 | D | 1 | 0625/13 Oct/Nov 2021 |
| 97 | C | 1 | 0625/13 Oct/Nov 2021 |
| 98 | A | 1 | 0625/12 Feb/March 2022 |
| 99 | B | 1 | 0625/12 Feb/March 2022 |
| 100 | A | 1 | 0625/11 May/June 2022 |
| 101 | B | 1 | 0625/11 May/June 2022 |
| 102 | A | 1 | 0625/12 May/June 2022 |
| 103 | B | 1 | 0625/12 May/June 2022 |
| 104 | B | 1 | 0625/13 May/June 2022 |
| 105 | A | 1 | 0625/12 Oct/Nov 2022 |
| 106 | B | 1 | 0625/12 Oct/Nov 2022 |
| 107 | A | 1 | 0625/12 Oct/Nov 2022 |
| 108 | A | 1 | 0625/13 Oct/Nov 2022 |
| 109 | D | 1 | 0625/13 Oct/Nov 2022 |
| 110 | C | 1 | 0625/13 Oct/Nov 2022 |
| 111 | B | 1 | 0625/13 Oct/Nov 2022 |
| 112 | C | 1 | 0625/13 Oct/Nov 2022 |
| 113 | C | 1 | 0625/12 Feb/March 2023 |
| 114 | D | 1 | 0625/12 Feb/March 2023 |
| 115 | A | 1 | 0625/12 Feb/March 2023 |
| 116 | B | 1 | 0625/12 Feb/March 2023 |
| 117 | B | 1 | 0625/11 May/June 2023 |
| 118 | B | 1 | 0625/11 May/June 2023 |
| 119 | C | 1 | 0625/12 May/June 2023 |
| 120 | D | 1 | 0625/12 May/June 2023 |
| 121 | C | 1 | 0625/13 May/June 2023 |
| 122 | C | 1 | 0625/13 May/June 2023 |
| 123 | B | 1 | 0625/11 Oct/Nov 2023 |
| 124 | D | 1 | 0625/12 Oct/Nov 2023 |
| 125 | A | 1 | 0625/12 Oct/Nov 2023 |
| 126 | B | 1 | 0625/12 Oct/Nov 2023 |
| 127 | C | 1 | 0625/12 Oct/Nov 2023 |
| 128 | C | 1 | 0625/13 Oct/Nov 2023 |
| 129 | D | 1 | 0625/13 Oct/Nov 2023 |
| 130 | D | 1 | 0625/13 Oct/Nov 2023 |
| 131 | A | 1 | 0625/12 Feb/March 2024 |
| 132 | D | 1 | 0625/12 Feb/March 2024 |
| 133 | B | 1 | 0625/11 May/June 2024 |
| 134 | B | 1 | 0625/11 May/June 2024 |
| 135 | B | 1 | 0625/13 May/June 2024 |
| 136 | B | 1 | 0625/13 May/June 2024 |
| 137 | C | 1 | 0625/13 May/June 2024 |
| 138 | A | 1 | 0625/11 Oct/Nov 2024 |
| 139 | B | 1 | 0625/11 Oct/Nov 2024 |
| 140 | D | 1 | 0625/12 Oct/Nov 2024 |
| 141 | D | 1 | 0625/12 Oct/Nov 2024 |
| 142 | C | 1 | 0625/13 Oct/Nov 2024 |
| 143 | D | 1 | 0625/12 Feb/March 2025 |
| 144 | B | 1 | 0625/12 May/June 2025 |
| 145 | A | 1 | 0625/12 May/June 2025 |
| 146 | A | 1 | 0625/12 May/June 2025 |
| 147 | A | 1 | 0625/12 May/June 2025 |
| 148 | B | 1 | 0625/13 May/June 2025 |
| 149 | A | 1 | 0625/13 May/June 2025 |
| 150 | A | 1 | 0625/13 May/June 2025 |
| 151 | A | 1 | 0625/13 May/June 2025 |
| 152 | A | 1 | 0625/12 Oct/Nov 2025 |
| 153 | D | 1 | 0625/12 Oct/Nov 2025 |
| 154 | C | 1 | 0625/12 Oct/Nov 2025 |
| 155 | B | 1 | 0625/13 Oct/Nov 2025 |
21 Radio waves are received at a house at the bottom of a hill. hill The waves reach the house because the hill has caused them to be A diffracted. B radiated. C reflected. D refracted.
1 marks
Answer: A
22 A student shines a narrow beam of white light into a prism as shown in the diagram. He sees a spectrum of colours emerging from the prism. X narrow beam Y spectrum of white light Z of colours Which three colours does he see at X, at Y and at Z? X Y Z A blue yellow red B red blue yellow C red yellow blue D yellow red blue
1 marks
Answer: C
23 Light from the Sun passes through a prism and a spectrum is produced on a screen. screen narrow slit light from P red the Sun violet A thermometer placed at P shows a large temperature rise. Which type of radiation causes this? A infra-red B microwave C ultra-violet D visible light
1 marks
Answer: A
18 A student warms her hands near a fire. Which waves carry most heat to her hands and are these waves electromagnetic? waves electromagnetic A infra-red no B infra-red yes C visible light no D visible light yes
1 marks
Answer: B
17 A student warms her hands near a fire. Which waves carry most heat to her hands and are these waves electromagnetic? waves electromagnetic A infra-red no B infra-red yes C visible light no D visible light yes
1 marks
Answer: B
20 Which group contains only transverse waves? A infra-red waves, light waves, sound waves B infra-red waves, light waves, ultra-violet waves C infra-red waves, ultra-violet waves, sound waves D light waves, sound waves, ultra-violet waves
1 marks
Answer: B
20 Which group contains only transverse waves? A infra-red waves, light waves, sound waves B infra-red waves, light waves, ultra-violet waves C infra-red waves, ultra-violet waves, sound waves D light waves, sound waves, ultra-violet waves
1 marks
Answer: B
20 Which group contains only transverse waves? A infra-red waves, light waves, sound waves B infra-red waves, light waves, ultra-violet waves C infra-red waves, ultra-violet waves, sound waves D light waves, sound waves, ultra-violet waves
1 marks
Answer: B
22 Which statement about radio waves is correct? A They travel as longitudinal waves. B They travel at the same speed as sound waves. C They travel by means of molecular vibration. D They can travel through a vacuum.
1 marks
Answer: D
19 Visible light and γ-rays are both waves. How may they correctly be described? visible light γ-rays A longitudinal longitudinal B longitudinal transverse C transverse longitudinal D transverse transverse
1 marks
Answer: D
21 Different parts of the electromagnetic spectrum are used for different purposes. Below are four statements about parts of the spectrum. statement 1: Infra-red waves are used in television remote controllers. statement 2: Radio waves are used to transmit television pictures from satellites to Earth. statement 3: Ultra-violet waves are used for intruder alarms. statement 4: X-rays are used for security checks. Which statements are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
21 Which group of electromagnetic radiations is arranged in order of increasing frequency? A infra-red, visible light, ultraviolet B γ-rays, X-rays, infra-red C ultra-violet, visible light, radio waves D X-rays, radio waves, γ-rays
1 marks
Answer: A
22 An electronic engineer makes devices which can receive television pictures from satellites. Which type of electromagnetic radiation must these devices be able to receive? A infra-red waves B microwaves C radio waves D ultra-violet waves
1 marks
Answer: B
19 Visible light and γ-rays are both waves. How may they correctly be described? visible light γ-rays A longitudinal longitudinal B longitudinal transverse C transverse longitudinal D transverse transverse
1 marks
Answer: D
20 Different parts of the electromagnetic spectrum are used for different purposes. Below are four statements about parts of the spectrum. statement 1: Infra-red waves are used in television remote controllers. statement 2: Radio waves are used to transmit television pictures from satellites to Earth. statement 3: Ultra-violet waves are used for intruder alarms. statement 4: X-rays are used for security checks. Which statements are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
21 The table gives common uses for three types of electromagnetic wave. Which row correctly identifies the waves? terrestrial television television remote satellite television (not satellite) controllers A infra-red waves microwaves radio waves B microwaves radio waves infra-red waves C radio waves infra-red waves microwaves D radio waves microwaves infra-red waves
1 marks
Answer: B
22 The table gives common uses for three types of electromagnetic wave. Which row correctly identifies the waves? terrestrial television television remote satellite television (not satellite) controllers A infra-red waves microwaves radio waves B microwaves radio waves infra-red waves C radio waves infra-red waves microwaves D radio waves microwaves infra-red waves
1 marks
Answer: B
21 Infra-red waves, microwaves, radio waves and sound waves are all used for communications. Which waves travel at the same high speed in a vacuum? A infra-red waves, microwaves and radio waves B infra-red waves, microwaves and sound waves C infra-red waves, radio waves and sound waves D microwaves, radio waves and sound waves
1 marks
Answer: A
16 Which statement about the transfer of thermal energy is correct? A All metals conduct thermal energy equally well. B Convection can only occur in solids or liquids. C Convection occurs in liquids because hot liquid is more dense than cold liquid. D The radiation that transfers thermal energy is a type of electromagnetic radiation.
1 marks
Answer: D
20 Which list shows electromagnetic waves in order of increasing frequency? A visible light, X-rays, γ-rays B visible light, γ-rays, X-rays C X-rays, γ-rays, visible light D γ-rays, X-rays, visible light
1 marks
Answer: A
18 Which statement about thermal radiation is correct? A It can only occur in a vacuum. B It involves movement of electrons through a material. C It involves movement of atoms. D It is infra-red radiation.
1 marks
Answer: D
21 Which statement about ultraviolet waves is correct? A They are used in television remote controllers. B They can be detected by the human eye. C They travel as longitudinal waves. D They have the same speed in a vacuum as radio waves.
1 marks
Answer: D
20 Which list shows electromagnetic waves in order of increasing frequency? A visible light, X-rays, γ-rays B visible light, γ-rays, X-rays C X-rays, γ-rays, visible light D γ-rays, X-rays, visible light
1 marks
Answer: A
21 Which type of electromagnetic wave is used in airport security scanners? A infra-red B microwaves C radio waves D X-rays
1 marks
Answer: D
27 Which type of electromagnetic wave is used in airport security scanners? A infra-red B microwaves C radio waves D X-rays
1 marks
Answer: D
21 An intruder alarm sensor detects that a human is warmer than his surroundings. Which type of electromagnetic wave does the sensor detect? A infra-red B radio C ultraviolet D visible light
1 marks
Answer: A
16 What is the name of the process of heat transfer using electromagnetic waves? A conduction B convection C evaporation D radiation
1 marks
Answer: D
22 How do infra-red waves differ from ultraviolet waves? A Infra-red waves are longitudinal. B Infra-red waves have a lower speed in vacuo (in a vacuum). C Infra-red waves have lower frequencies. D Infra-red waves have smaller wavelengths.
1 marks
Answer: C
20 The diagram shows the electromagnetic spectrum, in order of increasing wavelength. Three types of radiation, P, Q and R, are missing from the spectrum diagram. γ-rays X-rays P visible light Q microwaves R Which types of electromagnetic radiation are represented by P, by Q and by R? P Q R A infra-red radio waves ultraviolet B infra-red ultraviolet radio waves C ultraviolet infra-red radio waves D ultraviolet radio waves infra-red
1 marks
Answer: C
21 Radiation from the Sun is dispersed by a prism. The prism does not absorb any of the radiation. Four identical thermometers are placed, one at each of the labelled positions. In which position does the thermometer show the greatest rise in temperature? prism radiation from the Sun A B red light C violet light D
1 marks
Answer: A
21 Radiation from the Sun is dispersed by a prism. The prism does not absorb any of the radiation. Four identical thermometers are placed, one at each of the labelled positions. In which position does the thermometer show the greatest rise in temperature? prism radiation from the Sun A B red light C violet light D
1 marks
Answer: A
21 Radiation from the Sun is dispersed by a prism. The prism does not absorb any of the radiation. Four identical thermometers are placed, one at each of the labelled positions. In which position does the thermometer show the greatest rise in temperature? prism radiation from the Sun A B red light C violet light D
1 marks
Answer: A
22 The diagram shows a ray of white light incident on a triangular glass prism. glass prism ray of white light The ray enters the prism. Which row correctly states if the light is refracted, and if the light is dispersed? refracted dispersed A no no B no yes C yes no D yes yes
1 marks
Answer: D
20 The diagram represents the electromagnetic spectrum. Some regions have been labelled, and some labels are missing. Which region should be labelled as infra-red waves? radio visible A B C D γ-rays waves light
1 marks
Answer: B
22 Which group contains only electromagnetic waves? A light waves, radio waves, γ-rays B light waves, radio waves, sound waves C light waves, sound waves, γ-rays D radio waves, sound waves, γ-rays
1 marks
Answer: A
18 Which row correctly defines a type of wave and gives a correct example? wave type direction of vibrations example A longitudinal parallel to direction of wave travel radio waves B longitudinal perpendicular to direction of wave travel light waves C transverse parallel to direction of wave travel light waves D transverse perpendicular to direction of wave travel radio waves
1 marks
Answer: D
20 The diagram shows the electromagnetic spectrum. γ-rays radio X-rays ultraviolet visible light infra-red microwaves waves increasing … A word is missing from the label below the spectrum. Which word is missing? A amplitude B frequency C speed D wavelength
1 marks
Answer: D
24 A ray of white light is incident on a glass prism. ray of white light prism Which ray diagram shows the ray as it passes through the prism and emerges from the opposite side? A B red violet spectrum spectrum violet red C D red violet spectrum spectrum violet red
1 marks
Answer: C
21 Which row shows the natures of light waves, sound waves and X-rays? light waves sound waves X-rays A longitudinal longitudinal transverse B longitudinal transverse longitudinal C transverse longitudinal transverse D transverse transverse longitudinal
1 marks
Answer: C
22 Radio waves are received at a house at the bottom of a hill. radio waves house hill The waves reach the house because the hill has caused them to be A diffracted. B radiated. C reflected. D refracted.
1 marks
Answer: A
24 The diagram shows the dispersion of white light by a prism. prism white X Y light spectrum Z of colours Which row could be correct for the colours seen at X, at Y and at Z? colour at X colour at Y colour at Z A red violet yellow B red yellow violet C violet yellow red D yellow red violet
1 marks
Answer: B
21 Which row shows the natures of light waves, sound waves and X-rays? light waves sound waves X-rays A longitudinal longitudinal transverse B longitudinal transverse longitudinal C transverse longitudinal transverse D transverse transverse longitudinal
1 marks
Answer: C
22 Radio waves are received at a house at the bottom of a hill. radio waves house hill The waves reach the house because the hill has caused them to be A diffracted. B radiated. C reflected. D refracted.
1 marks
Answer: A
24 Visible light has a frequency of approximately 5.0 × 1014 Hz. M and N are two other types of electromagnetic radiation. The frequency of M is 5.0 × 106 Hz. The frequency of N is 5.0 × 1015 Hz. Which types of radiation are M and N? M N A radio waves infra-red B radio waves ultraviolet C ultraviolet X-rays D X-rays infra-red
1 marks
Answer: B
21 Which row shows the natures of light waves, sound waves and X-rays? light waves sound waves X-rays A longitudinal longitudinal transverse B longitudinal transverse longitudinal C transverse longitudinal transverse D transverse transverse longitudinal
1 marks
Answer: C
22 Radio waves are received at a house at the bottom of a hill. radio waves house hill The waves reach the house because the hill has caused them to be A diffracted. B radiated. C reflected. D refracted.
1 marks
Answer: A
18 Which statement about infra-red radiation is correct? A A black surface is a poor absorber of infra-red radiation. B A dull surface is a better emitter of infra-red radiation than a shiny surface. C A shiny surface is a better absorber of infra-red radiation than a dull surface. D A white surface is a poor reflector of infra-red radiation.
1 marks
Answer: B
24 Radiation from which part of the electromagnetic spectrum is used in the remote controller for a television? A infra-red waves B microwaves C radio waves D ultraviolet waves
1 marks
Answer: A
20 The box contains a list of four types of wave. γ-rays sound ultraviolet X-rays How many waves in the list are transverse waves? A 1 B 2 C 3 D 4
1 marks
Answer: C
24 Which part of the electromagnetic spectrum is used to send television signals from a satellite to Earth? A infra-red B microwaves C ultraviolet D visible light
1 marks
Answer: B
18 Which description applies to infra-red radiation? A longitudinal and electromagnetic B longitudinal but not electromagnetic C transverse and electromagnetic D transverse but not electromagnetic
1 marks
Answer: C
24 Which group shows four electromagnetic waves in order, from the largest wavelength to the smallest? A microwaves, radio waves, X-rays, visible light B radio waves, microwaves, visible light, X-rays C visible light, X-rays, radio waves, microwaves D X-rays, visible light, microwaves, radio waves
1 marks
Answer: B
24 What is the main type of radiation given out by a campfire? A infra-red B microwave C ultraviolet D X-ray
1 marks
Answer: A
24 The table shows different types of wave in the electromagnetic spectrum. radio micro- infra-red visible ultraviolet gamma X-rays waves waves waves light waves rays Where do all the waves travel at the same speed? A in a vacuum B in diamond C in glass D in water
1 marks
Answer: A
24 The table shows different types of wave in the electromagnetic spectrum. radio micro- infra-red visible ultraviolet gamma X-rays waves waves waves light waves rays Where do all the waves travel at the same speed? A in a vacuum B in diamond C in glass D in water
1 marks
Answer: A
23 The table shows different types of wave in the electromagnetic spectrum. radio micro- infra-red visible ultraviolet gamma X-rays waves waves waves light waves rays Where do all the waves travel at the same speed? A in a vacuum B in diamond C in glass D in water
1 marks
Answer: A
24 Visible light, X-rays and microwaves are all components of the electromagnetic spectrum. Which statement about the waves is correct? A In a vacuum, microwaves travel faster than visible light and have a shorter wavelength. B In a vacuum, microwaves travel at the same speed as visible light and have a shorter wavelength. C In a vacuum, X-rays travel faster than visible light and have a shorter wavelength. D In a vacuum, X-rays travel at the same speed as visible light and have a shorter wavelength.
1 marks
Answer: D
25 Space is a vacuum. Waves from stars are used to reveal information about the stars. Which type of waves do not reveal information about stars? A infra-red B radio waves C ultrasound D γ-rays
1 marks
Answer: C
25 Which piece of equipment is designed to produce a type of electromagnetic wave? A electric fire B electric generator C electric motor D electromagnet
1 marks
Answer: A
23 Which statement about radio waves is correct? A They are used in television remote controllers. B They can be detected by the human eye. C They travel as longitudinal waves. D They have the same speed in a vacuum as ultraviolet waves.
1 marks
Answer: D
24 Which types of thermal energy transfer are due to electromagnetic waves? A conduction and convection B convection and radiation C convection only D radiation only
1 marks
Answer: D
25 The diagram shows the electromagnetic spectrum. The numbers indicate the approximate wavelength at the boundaries between the various regions of the spectrum. For a device to be able to make use of electromagnetic radiation, it needs an aerial of approximately the same size as the radiation it is designed to work with. P Q R S T U V 1 m 10–3 m 7 × 10–7 m 4 × 10–7 m 10–8 m 10–11 m Which statement is correct? A A mobile phone uses radiation from region P. B A television satellite dish uses radiation from region Q. C The receptor cells in an eye use radiation from region R. D The remote controller for a television uses radiation from region U.
1 marks
Answer: B
24 Where do all types of electromagnetic waves travel at the same speed? A air B a vacuum C glass D water
1 marks
Answer: B
22 It takes 0.24 seconds for a microwave signal to travel from a transmitting station on Earth to a satellite and then back to the station on Earth. Microwaves travel at 3.0 × 108 m / s. How far is the transmitting station from the satellite? A 36 000 km B 72 000 km C 36 000 000 km D 72 000 000 km
1 marks
Answer: A
18 Some of the Sun’s radiation passes through a prism. The diagram shows the spectrum of the radiation. Which point on the screen does the infra-red radiation reach? prism radiation from the Sun not visible red A visible B C not visible violet screen D
1 marks
Answer: A
24 Different parts of the electromagnetic spectrum are used for different purposes. Below are four statements about parts of the spectrum. statement 1: Infra-red waves are used in television remote controllers. statement 2: Radio waves are used to transmit television pictures from satellites to Earth. statement 3: Ultraviolet waves are used for intruder alarms. statement 4: X-rays are used for security checks. Which statements are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
18 Some of the Sun’s radiation passes through a prism. The diagram shows the spectrum of the radiation. Which point on the screen does the infra-red radiation reach? prism radiation from the Sun not visible red A visible B C not visible violet screen D
1 marks
Answer: A
24 Different parts of the electromagnetic spectrum are used for different purposes. Below are four statements about parts of the spectrum. statement 1: Infra-red waves are used in television remote controllers. statement 2: Radio waves are used to transmit television pictures from satellites to Earth. statement 3: Ultraviolet waves are used for intruder alarms. statement 4: X-rays are used for security checks. Which statements are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
18 Some of the Sun’s radiation passes through a prism. The diagram shows the spectrum of the radiation. Which point on the screen does the infra-red radiation reach? prism radiation from the Sun not visible red A visible B C not visible violet screen D
1 marks
Answer: A
24 Different parts of the electromagnetic spectrum are used for different purposes. Below are four statements about parts of the spectrum. statement 1: Infra-red waves are used in television remote controllers. statement 2: Radio waves are used to transmit television pictures from satellites to Earth. statement 3: Ultraviolet waves are used for intruder alarms. statement 4: X-rays are used for security checks. Which statements are correct? A 1 and 2 B 1 and 4 C 2 and 3 D 3 and 4
1 marks
Answer: B
24 Which statement about microwaves is correct? A Microwaves are longitudinal waves. B The frequencies of microwaves are greater than the frequencies of visible light. C The speed of microwaves in a vacuum is equal to the speed of visible light in a vacuum. D The wavelengths of microwaves are smaller than the wavelengths of infra-red.
1 marks
Answer: C
25 The diagram shows radiation from a lamp passing through a prism. screen prism P red light radiation from lamp Which type of radiation is found at P? A γ-rays B infrared C ultraviolet D X-rays
1 marks
Answer: B
25 The diagram shows radiation from a lamp passing through a prism. screen prism P red light radiation from lamp Which type of radiation is found at P? A γ-rays B infrared C ultraviolet D X-rays
1 marks
Answer: B
25 The diagram shows radiation from a lamp passing through a prism. screen prism P red light radiation from lamp Which type of radiation is found at P? A γ-rays B infrared C ultraviolet D X-rays
1 marks
Answer: B
39 Which statement about γ-radiation is correct? A It consists of very small charged particles. B It is a form of electromagnetic radiation. C It is less penetrating than β-radiation. D It is more highly ionising than α-radiation.
1 marks
Answer: B
25 The diagram shows the electromagnetic spectrum. radio γ-rays X-rays ultraviolet visible light infrared microwaves waves increasing … A word is missing from the label below the spectrum. Which word is missing? A amplitude B frequency C speed D wavelength
1 marks
Answer: D
25 The diagram shows the electromagnetic spectrum. radio γ-rays X-rays ultraviolet visible light infrared microwaves waves increasing … A word is missing from the label below the spectrum. Which word is missing? A amplitude B frequency C speed D wavelength
1 marks
Answer: D
39 Which type of radiation can be stopped by a sheet of paper? A α-particles B β-particles C γ-rays D Χ-rays
1 marks
Answer: A
20 Why are the outside walls of houses often painted white in very hot countries? A White surfaces are good absorbers of infrared radiation. B White surfaces are good emitters of infrared radiation. C White surfaces are poor absorbers of infrared radiation. D White surfaces are poor reflectors of infrared radiation.
1 marks
Answer: C
25 The diagram shows the electromagnetic spectrum. radio γ-rays X-rays ultraviolet visible light infrared microwaves waves increasing … A word is missing from the label below the spectrum. Which word is missing? A amplitude B frequency C speed D wavelength
1 marks
Answer: D
24 A narrow beam of white light passes through a prism and is dispersed into a spectrum. 1 white 2 light 3 Which row is correct? colour 1 colour 2 colour 3 A blue yellow red B red blue yellow C red yellow blue D yellow blue red
1 marks
Answer: C
25 An intruder alarm sensor detects that a person is warmer than his surroundings. Which type of electromagnetic wave does the sensor detect? A infrared B radio C ultraviolet D visible light
1 marks
Answer: A
25 An intruder alarm sensor detects that a person is warmer than his surroundings. Which type of electromagnetic wave does the sensor detect? A infrared B radio C ultraviolet D visible light
1 marks
Answer: A
24 A beam of white light is split into a spectrum of seven colours. Which name is given to this process? A diffraction B dispersion C reflection D refraction
1 marks
Answer: B
25 An intruder alarm sensor detects that a person is warmer than his surroundings. Which type of electromagnetic wave does the sensor detect? A infrared B radio C ultraviolet D visible light
1 marks
Answer: A
24 The diagram shows a beam of white light passing through a triangular prism. A spectrum is produced. prism X white light Y Which row correctly shows a wave property involved in producing the colours at X and Y? wave property X Y A diffraction red violet B dispersion red violet C reflection violet red D refraction violet red
1 marks
Answer: B
25 The diagram shows the electromagnetic spectrum. -rays E ultraviolet F infrared microwaves G Which types of wave are E, F and G? E F G A radio visible light X-rays B radio X-rays ultrasound C X-rays radio ultrasound D X-rays visible light radio
1 marks
Answer: D
25 Which type of radiation does a remote controller use to send its instructions to a TV set? A -rays B infrared radiation C ultraviolet radiation D X-rays
1 marks
Answer: B
25 The diagram shows three types of electromagnetic radiation listed in a particular order. The electromagnetic radiation is travelling in a vacuum. microwaves infrared X-rays Which quantities increase in magnitude going from left to right across the list? A frequency only B neither speed nor frequency C speed and frequency D speed only
1 marks
Answer: A
25 Thermal radiation is part of the electromagnetic spectrum. What is the name of this region of the spectrum? A gamma rays B infrared rays C ultraviolet rays D visible light rays
1 marks
Answer: B
24 The table shows information about different colours of light. colour frequency of light / Hz violet 7.2 1014 blue 6.3 1014 yellow 5.2 1014 red 4.5 1014 Using the data, what is the frequency of orange light? A 4.0 1014 Hz B 5.0 1014 Hz C 6.0 1014 Hz D 7.0 1014 Hz
1 marks
Answer: B
22 Radiation from which part of the electromagnetic spectrum is used in the remote controller for a television? A infrared waves B microwaves C radio waves D ultraviolet waves
1 marks
Answer: A
23 Two rays of light are different colours. Which row is correct? speed of the two wavelengths of the two colours in a vacuum colours in a vacuum A different different B different the same C the same different D the same the same
1 marks
Answer: C
22 Visible light, X-rays and microwaves are all components of the electromagnetic spectrum. Which statement about the waves is correct? A In a vacuum, microwaves travel faster than visible light and have a shorter wavelength. B In a vacuum, microwaves travel at the same speed as visible light and have a shorter wavelength. C In a vacuum, X-rays travel faster than visible light and have a shorter wavelength. D In a vacuum, X-rays travel at the same speed as visible light and have a shorter wavelength.
1 marks
Answer: D
23 Which radiation has a higher frequency than red light? A ultraviolet B radio waves C microwaves D infrared
1 marks
Answer: A
22 Visible light, X-rays and microwaves are all components of the electromagnetic spectrum. Which statement about the waves is correct? A In a vacuum, microwaves travel faster than visible light and have a shorter wavelength. B In a vacuum, microwaves travel at the same speed as visible light and have a shorter wavelength. C In a vacuum, X-rays travel faster than visible light and have a shorter wavelength. D In a vacuum, X-rays travel at the same speed as visible light and have a shorter wavelength.
1 marks
Answer: D
23 What can transmit some types of transverse waves but not longitudinal waves? A air B a steel bar C a vacuum D sea water
1 marks
Answer: C
25 Which row is correct? frequency of infrared waves use of infrared waves compared to microwaves A greater radiant heater B greater satellite television C lower radiant heater D lower satellite television
1 marks
Answer: A
26 A student investigates sound waves from a loudspeaker. The frequency of the sound wave is 25 000 Hz. The student has normal hearing but she cannot hear the sound. What should she do if she wants to hear a sound from the loudspeaker? A decrease the amplitude B decrease the frequency C increase the amplitude D increase the frequency
1 marks
Answer: B
24 Which part of the electromagnetic spectrum is used by a remote controller for a television? A infrared waves B microwaves C radio waves D visible light
1 marks
Answer: A
25 Which statement correctly compares radio waves and X-rays? A Radio waves have a longer wavelength and a greater speed in a vacuum. B Radio waves have a longer wavelength and the same speed in a vacuum. C Radio waves have a shorter wavelength and a greater speed in a vacuum. D Radio waves have a shorter wavelength and the same speed in a vacuum.
1 marks
Answer: B
24 Microwaves, green light and infrared are three types of electromagnetic radiation. What is their order when listed by wavelength from the shortest wavelength to the longest? A green light infrared microwaves B green light microwaves infrared C infrared green light microwaves D microwaves infrared green light
1 marks
Answer: A
25 Which statement correctly compares radio waves and X-rays? A Radio waves have a longer wavelength and a greater speed in a vacuum. B Radio waves have a longer wavelength and the same speed in a vacuum. C Radio waves have a shorter wavelength and a greater speed in a vacuum. D Radio waves have a shorter wavelength and the same speed in a vacuum.
1 marks
Answer: B
24 Which statement correctly compares radio waves and X-rays? A Radio waves have a longer wavelength and a greater speed in a vacuum. B Radio waves have a longer wavelength and the same speed in a vacuum. C Radio waves have a shorter wavelength and a greater speed in a vacuum. D Radio waves have a shorter wavelength and the same speed in a vacuum.
1 marks
Answer: B
16 Which piece of equipment is designed to produce a type of electromagnetic wave? A electric fire B electric generator C electric motor D electromagnet
1 marks
Answer: A
22 Visible light has a frequency of approximately 5.0 × 1014 Hz. M and N are two other types of electromagnetic radiation. The frequency of M is 5.0 × 106 Hz. The frequency of N is 5.0 × 1015 Hz. Which types of radiation are M and N? M N A radio waves infrared B radio waves ultraviolet C ultraviolet X-rays D X-rays infrared
1 marks
Answer: B
23 Two students are describing different types of electromagnetic radiation. student 1 This radiation is used in communications. student 2 This radiation is used in remote controllers. Which row shows the possible type of radiation that each student is describing? student 1 student 2 A microwave infrared B radio ultraviolet C sound waves visible light D X-rays gamma rays
1 marks
Answer: A
16 Which piece of equipment is designed to produce a type of electromagnetic wave? A electric fire B electric generator C electric motor D electromagnet
1 marks
Answer: A
17 How is energy transferred from the Sun to the Earth? A by -particles B by conduction C by convection D by radiation
1 marks
Answer: D
19 A 60 glass prism disperses white light as shown. red spectrum white violet light glass prism The spectrum can be seen emerging from the prism. Which spectrum shows the colours in the correct order? A violet, green, blue, yellow, orange, red B violet, blue, green, orange, yellow, red C violet, blue, green, yellow, orange, red D violet, green, blue, orange, yellow, red
1 marks
Answer: C
22 Visible light has a frequency of approximately 5.0 1014 Hz. M and N are two other types of electromagnetic radiation. The frequency of M is 5.0 106 Hz. The frequency of N is 5.0 1015 Hz. Which types of radiation are M and N? M N A radio waves infrared B radio waves ultraviolet C ultraviolet X-rays D X-rays infrared
1 marks
Answer: B
23 Which wave is not an electromagnetic wave? A microwaves B radio C sound D ultraviolet
1 marks
Answer: C
20 Blue light has a typical wavelength of 5.0 × 10–7 m and frequency of 0.60 × 1015 Hz. Which row gives a typical wavelength and frequency for red light? wavelength frequency A 2.4 × 10–7 m 0.40 × 1015 Hz B 2.4 × 10–7 m 1.3 × 1015 Hz C 6.9 × 10–7 m 0.40 × 1015 Hz D 6.9 × 10–7 m 1.3 × 1015 Hz
1 marks
Answer: C
21 Which diagram shows what happens when a ray of white light passes through a prism? A B spectrum white white light light spectrum C D spectrum white white light light spectrum
1 marks
Answer: D
22 A television (TV) station transmits a signal to a television receiving dish. The television has an on / off indicator light. The television is switched on by a remote control which changes the indicator light from red to green. Which electromagnetic wave used in these actions has the longest wavelength? satellite A receiving dish TV station B TV remote control indicator light red green C D
1 marks
Answer: A
40 The nearest star to the Sun is Proxima Centauri at a distance of 4.2 light years. Which statements are correct? 1 Telescope images of Proxima Centauri show it as it was 4.2 years ago. 2 If a spacecraft near Proxima Centauri sent a radio message to the Earth, it would take 4.2 years to arrive. 3 Proxima Centauri is outside the Milky Way galaxy. A 1, 2 and 3 B 1 and 2 only C 1 and 3 only D 2 and 3 only
1 marks
Answer: B
20 Which diagram shows the dispersion of white light by a glass prism? A B red red red white white violet violet violet C D red red red red white violet violet white violet violet
1 marks
Answer: B
21 Which statement is correct? A A remote controller emits microwave radiation. B A remote controller emits infrared radiation. C A remote controller emits ultrasound. D A remote controller emits ultraviolet radiation.
1 marks
Answer: B
21 The two devices shown use different types of electromagnetic waves. medical scanning remote controller Which types of waves are used in these devices? medical remote scanning controller A ultraviolet infrared B ultraviolet microwaves C X-rays infrared D X-rays microwaves
1 marks
Answer: C
39 The graph shows the energy radiated by the Sun at different wavelengths. Most of the energy is radiated in just three parts of the electromagnetic spectrum, labelled P, Q and R. energy radiated 0 0 P Q R wavelength Which parts of the electromagnetic spectrum are P and R? P R A gamma ray radio B infrared ultraviolet C radio gamma ray D ultraviolet infrared
1 marks
Answer: D
20 A narrow beam of white light passes through a prism and is dispersed into a spectrum. 1 white 2 light 3 Which row is correct? colour 1 colour 2 colour 3 A blue yellow red B red blue yellow C red yellow blue D yellow blue red
1 marks
Answer: C
21 Which row matches a region of the electromagnetic spectrum to one of its uses? region use A gamma rays intruder alarms B infrared satellite television C microwaves mobile (cell) phones D radio waves sterilising food
1 marks
Answer: C
22 Where do all types of electromagnetic waves travel at the same speed? A air B a vacuum C glass D water
1 marks
Answer: B
19 Red, green and violet lights are part of the visible spectrum of light. What is the order of colours from shortest to longest wavelength? A red green violet B red violet green C violet red green D violet green red
1 marks
Answer: D
22 The table shows different types of wave in the electromagnetic spectrum. radio infrared visible ultraviolet gamma microwaves X-rays waves waves light waves rays Where do all the waves travel at the same speed? A in a vacuum B in diamond C in glass D in water
1 marks
Answer: A
39 The Sun transfers energy to the Earth through electromagnetic radiation. What are two of the parts of the electromagnetic spectrum to which most of the energy belongs? A gamma rays and X-rays B infrared radiation and visible light C microwaves and visible light D radio waves and microwaves
1 marks
Answer: B
40 What provides evidence that the Universe is expanding? A Stars in galaxies outside the Milky Way are all red. B The Andromeda galaxy is moving toward the Milky Way. C Light from distant galaxies is shifted to longer wavelengths. D The Universe is 14 billion years old.
1 marks
Answer: C
19 A beam of light from the Sun strikes a prism. prism X beam of light Z from the Sun Y white wall The dispersed beam is incident on a white wall between X and Y. Which colours are seen at X, Z and Y? X Z Y A red green violet B red violet green C violet green red D violet red green
1 marks
Answer: C
22 The diagram shows the electromagnetic spectrum. γ-rays E ultraviolet F infrared microwaves G Which types of wave are E, F and G? E F G A radio visible light X-rays B radio X-rays ultrasound C X-rays radio ultrasound D X-rays visible light radio
1 marks
Answer: D
40 The table shows some elements and some regions of the electromagnetic spectrum. Which row shows one of the most common elements in the Sun and one of the regions in which the Sun radiates most of its energy? element region A iron gamma B iron infrared C hydrogen gamma D hydrogen infrared
1 marks
Answer: D
20 Which electromagnetic waves are used for sterilising medical equipment? A gamma rays B microwaves C radio waves D visible light
1 marks
Answer: A
38 Which row shows the most common elements in the Sun and the regions of the electromagnetic spectrum in which most of the Sun’s energy is radiated? elements regions A carbon and oxygen gamma and radio waves B carbon and oxygen infrared and visible C hydrogen and helium gamma and radio waves D hydrogen and helium infrared and visible
1 marks
Answer: D
21 Infrared is a useful type of electromagnetic radiation. However, excessive exposure to infrared can cause harmful effects. Which row gives a use and a harmful effect for infrared? use harmful effect A detection of cancer mutations B intruder alarms skin burns C detection of fake bank notes cell damage D thermal imaging internal heating of body cells
1 marks
Answer: B
39 What are the three main types of radiation emitted by the Sun? A infrared, radio waves and ultraviolet B infrared, visible light and ultraviolet C microwaves, visible light and X-rays D radio waves, X-rays and ultraviolet
1 marks
Answer: B
20 The table shows information about different colours of light. colour frequency / Hz of light violet 7.2 1014 blue 6.3 1014 yellow 5.2 1014 red 4.5 1014 Using the data, what is the frequency of orange light? A 4.0 1014 Hz B 5.0 1014 Hz C 6.0 1014 Hz D 7.0 1014 Hz
1 marks
Answer: B
21 The table gives the wavelengths of three electromagnetic waves. electromagnetic wavelength / m wave P 3.2 10–3 Q 5.0 10–9 R 2.6 103 Which row correctly identifies P, Q and R? P Q R A microwave radio wave X-ray B microwave X-ray radio wave C radio wave microwave X-ray D radio wave X-ray microwave
1 marks
Answer: B
39 In which regions of the electromagnetic spectrum does the Sun radiate most of its energy? A microwave to infrared B ultraviolet to X-ray C infrared to ultraviolet D radio to infrared
1 marks
Answer: C
21 Which diagram shows the dispersion of white light by a glass prism? A B red violet red white violet white light light C D red red white violet white violet light light
1 marks
Answer: A
22 Which regions of the electromagnetic spectrum are used for satellite television and for security marking? satellite television security marking A microwaves infrared B microwaves ultraviolet C X-rays infrared D X-rays ultraviolet
1 marks
Answer: B
21 The diagram shows a narrow beam of white light being dispersed by a glass prism to produce a visible spectrum. P white light Q Which statement describes what happens to the frequency and wavelength of the light in observing from P to Q across the spectrum? A The frequency and the wavelength both increase. B The frequency and the wavelength both decrease. C The frequency decreases but the wavelength increases. D The frequency increases but the wavelength decreases.
1 marks
Answer: D
22 The early Universe was filled with gamma radiation. Since then, the radiation has shifted to the microwave region of the electromagnetic spectrum. How has this change affected the wavelength and speed of the radiation? wavelength speed A decreased decreased B decreased stayed the same C increased decreased D increased stayed the same
1 marks
Answer: D
22 Which row correctly compares microwaves and ultraviolet? frequency of microwaves uses compared to ultraviolet A higher microwaves are used to heat water and ultraviolet is used to sterilise water B higher microwaves are used to sterilise water and ultraviolet is used to heat water C lower microwaves are used to heat water and ultraviolet is used to sterilise water D lower microwaves are used to sterilise water and ultraviolet is used to heat water
1 marks
Answer: C
26 The table gives the range of frequencies of three types of electromagnetic radiation. type of radiation range of frequencies / Hz radio 3 104 to 3 109 visible light 4 1014 to 8 1014 X-rays 3 1016 to 3 1019 Which type of electromagnetic radiation has a frequency of 4 1015 Hz? A gamma radiation B infrared radiation C microwave radiation D ultraviolet radiation
1 marks
Answer: D
21 Which type of radiation does a remote controller use to send its instructions to a television (TV)? A gamma rays B infrared radiation C ultraviolet radiation D X-rays
1 marks
Answer: B
22 A person exposed to excessive radiation from certain parts of the electromagnetic spectrum is likely to suffer cell damage. Which radiations cause cell damage? A gamma rays and ultraviolet B gamma rays only C green light and red light D radio waves and green light
1 marks
Answer: A
36 A student compares alpha emissions, beta emissions and gamma emissions. Which statement is correct? A Alpha emissions are the most ionising. B Beta emissions are the most penetrating. C Beta emissions are part of the electromagnetic spectrum. D Gamma emissions are streams of charged particles.
1 marks
Answer: A
40 The Sun radiates most of its energy in three regions of the electromagnetic spectrum. The diagram shows the proportion of the total energy radiated in each of these regions. Q R P Region P is visible light and region Q is ultraviolet. What is region R? A infrared B microwaves C radio waves D X-rays
1 marks
Answer: A
21 Which type of radiation does a remote controller use to send its instructions to a television (TV)? A gamma rays B infrared radiation C ultraviolet radiation D X-rays
1 marks
Answer: B
22 A person exposed to excessive radiation from certain parts of the electromagnetic spectrum is likely to suffer cell damage. Which radiations cause cell damage? A gamma rays and ultraviolet B gamma rays only C green light and red light D radio waves and green light
1 marks
Answer: A
36 A student compares alpha emissions, beta emissions and gamma emissions. Which statement is correct? A Alpha emissions are the most ionising. B Beta emissions are the most penetrating. C Beta emissions are part of the electromagnetic spectrum. D Gamma emissions are streams of charged particles.
1 marks
Answer: A
40 The Sun radiates most of its energy in three regions of the electromagnetic spectrum. The diagram shows the proportion of the total energy radiated in each of these regions. Q R P Region P is visible light and region Q is ultraviolet. What is region R? A infrared B microwaves C radio waves D X-rays
1 marks
Answer: A
23 Which list shows the colours present in the visible spectrum in order of increasing wavelength? A green yellow orange red B red green orange yellow C red orange yellow green D yellow green orange red
1 marks
Answer: A
24 Which parts of the electromagnetic spectrum complete the list of applications? Mobile phones use … 1 … . Security scanners use … 2 … . Intruder alarms use … 3 … . 1 2 3 A radio waves X-rays radio waves B microwaves microwaves infrared C microwaves X-rays radio waves D microwaves X-rays infrared
1 marks
Answer: D
39 The Sun is a star that radiates energy towards the Earth. Which regions of the electromagnetic spectrum make up most of the Sun’s radiation received on the Earth? A gamma, X-ray and ultraviolet B X-ray, ultraviolet and visible C ultraviolet, visible and infrared D visible, infrared and microwaves
1 marks
Answer: C
39 In which given region of the electromagnetic spectrum does the Sun radiate the least of its energy? A infrared B microwave C ultraviolet D visible
1 marks
Answer: B