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WorksheetsUses of EM Lesson Checkpoint
Total questions: 13
Worksheet time: 8mins
Which of these waves has the highest frequency?
Gamma
Radio
Ultraviolet
Microwave
Fill in the gap:
Radio waves, (a) , infrared, visible light, ultraviolet, x-rays, gamma
Which of the following are not uses of x-rays? (choose two)
Airport scanners
Satellite communication
Medical imaging
Detecting forged notes
Which of the listed waves has the longest wavelength?
infrared
radio waves
ultraviolet
x-rays
Which two of these waves can be used for cooking?
microwaves
infrared
visible light
ultraviolet
Microwaves are used to cook food. The energy from the microwaves are absorbed by (a) molecules in the food.
Waves transfer ________ and _________.
matter and energy
energy and information
matter and information
What type of waves are EM waves?
Transverse
Longitudinal
Waves do not transfer ________
energy
information
matter
Fill in the blank:
gamma rays, x-rays, (a) , visible light, infrared, microwaves, radio waves
Gamma rays are used to sterilise food because they transfer a lot of (a) .
To detect faked bank notes, (a) light is shone onto the note. That light is absorbed by the ink on the note and re-emitted as visible light.
As the frequency of the wave increases, the dangers associated _______.
increase
decrease
