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- @What do waves carry from one place to another?
- Energy
- Heat
- Light
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- @Which one of the following is a correct statement for e.m waves?
- They all travel through space
- None of them can travel through space
- Some can travel a little way through space
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- @Which one of the following statements is NOT correct?
- E.m waves travel very slowly
- E.m waves all travel at the same speed in space
- E.m waves all have different wavelengths
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- @Approximately how fast do e.m waves travel?
- 300,000,000 m/s
- 330 m/s
- 3,000 m/s
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- @Which one of the following is NOT an e.m wave?
- Sound
- Light
- X-Rays
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- @What is the correct formula for calculating the speed of an e.m wave?
- velocity = frequency x wavelength
- velocity = speed x frequency
- velocity = wavelength/speed
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- @Which one of the following statements about the wavelength of an e.m wave is incorrect
- It's measured from the top of one wave to the bottom of the next
- It's measured from the top of one wave to the top of the next
- It's from the middle of one wave to the middle of the next
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- @What is frequency?
- How many waves you have in one second
- The number of seconds it takes a wave to travel one metre
- The shape of the wave
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- @Which one of the following colours has the longest wavelength?
- Red
- Blue
- Green
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- @Which of the following colours has the shortest wavelength?
- Blue
- Red
- Magenta
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- @Three examples of electromagnetic waves are:
- Light, gamma rays & radio waves
- Light, sound and X-rays
- Radio, alpha radiation & infra-red
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- @When two sets of waves meet each other what happens?
- They interfere with each other
- Neither of them is affected in any way
- Both sets of waves are always totally destroyed
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- @When waves pass through gaps they:
- Diffract
- Deflect
- Disturb
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- @Which types of waves have wavelengths that can be hunderds of metres long?
- Radio
- X-Rays
- Microwaves
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- @What would be a typical wavelength for microwaves?
- About 10cm
- One millionth of a metre
- Three hundred metres
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- @Which one of the following has the shortest wavelength?
- Gamma rays
- Light
- Microwaves
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- @Water in a solar panel is heated by bright sunshine. Which part of the EM spectrum is responsible for this heating?
- Infra-Red
- Ultra-Violet
- Visible Light
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- @What type of wave is responsible for sun tans?
- Ultra-violet
- Infra-red
- Gamma rays
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- @Photographic film could not be used to detect which one of the following:
- Microwaves
- Ultra-violet
- X-rays
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- @Which of the following statements about UV light and visible is NOT correct?
- They have the same wavelength
- They can be reflected by mirrors
- They vibrate transversely
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