Lesson 4.6.2.4
4.6.2.4 Uses and applications of electromagnetic waves Quiz: AQA Physics, Unit 6
20 questions
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Lesson 4.6.2.4, Uses and applications of electromagnetic waves: 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 6: Waves, written with Revision Ninja.
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The 20 questions
-
Which electromagnetic wave is used in satellite communications?
- X-rays
- Ultraviolet
- Microwaves
- Infrared
-
Which electromagnetic wave is used in electrical heaters?
- Radio waves
- Ultraviolet
- Microwaves
- Infrared
-
Which part of the spectrum is used in fibre optic communications?
- Microwaves
- Gamma rays
- Visible light
- Radio waves
-
Which electromagnetic wave is used in energy efficient lamps and sun tanning?
- Gamma
- Radio
- Ultraviolet
- Infrared
-
Which electromagnetic waves are used for medical imaging?
- Ultraviolet and radio waves
- X-rays and gamma rays
- Infrared and visible light
- Radio waves and microwaves
-
Which electromagnetic waves are used for television broadcasts?
- Microwaves
- Infrared
- X-rays
- Radio waves
-
Why are radio waves suitable for television broadcasts?
- Ionised in the atmosphere
- Picked up by aerials
- Reflected by ozone
- Absorbed by water molecules
-
How do microwaves cook food?
- Scattered by air particles
- Transmitted through glass
- Reflected by metal surfaces
- Absorbed by water molecules
-
Why are X-rays suitable for medical imaging?
- Absorbed by skin
- Refracted by tissue
- Reflected by bone
- Absorbed by bone
-
Why is infrared radiation used in electrical heaters?
- Penetrates deep metal
- Transfers thermal energy
- Emits visible light
- Reflects off walls
-
How do ultraviolet waves produce light in energy efficient lamps?
- Emitted by coating
- Refracted by glass
- Absorbed by filament
- Scattered by gas
-
Why is visible light used in fibre optic communications?
- Amplifies the signal
- Passes straight through
- Guided along fibres
- Travels infinitely fast
-
Which electromagnetic wave is used to destroy cancer cells in hospitals?
- Radio waves
- Microwaves
- Gamma rays
- Infrared waves
-
Why are microwaves used for satellite communications?
- Reflected by clouds
- Pass through atmosphere
- Absorbed by air
- Bend around Earth
-
Which everyday item relies on microwaves to communicate with satellites?
- A kettle
- A wristwatch
- A ceiling fan
- A satellite dish
-
Which electromagnetic wave is detected by an infrared camera?
- Radio waves
- Infrared
- Microwaves
- Ultraviolet
-
Which medical application uses ionising electromagnetic radiation?
- Laser surgery
- Endoscopy
- Thermal imaging
- Radiotherapy
-
Why are radio waves used for broadcasting to distant homes?
- Long wavelengths
- Ionising energy
- Short range
- High frequency
-
Which application uses ultraviolet other than sun tanning?
- Electrical heaters
- Satellite communications
- Fibre optic cables
- Energy efficient lamps
-
Which device uses infrared radiation to detect warm bodies in the dark?
- Infrared camera
- Endoscope
- X-ray scanner
- Periscope
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