10 questions🇬🇧English
🌈 Waves & the EM Spectrum – GCSE
Physics · GCSE — wave properties, the wave equation and the uses and dangers of electromagnetic waves
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Questions
Which of these is an example of a longitudinal wave?
Microwaves
Visible light
Sound waves in air
Ripples on a pond
20s
What is the amplitude of a wave?
Maximum displacement from the rest position
Distance the wave travels each second
Distance between two neighbouring crests
Number of waves passing a point each second
20s
Which type of electromagnetic wave has the longest wavelength?
Radio waves
Gamma rays
Infrared
Microwaves
20s
A wave has a frequency of 50 Hz and a wavelength of 4 m. What is its wave speed?
0.08 m/s
200 m/s
54 m/s
12.5 m/s
30s
Which statement describes a transverse wave?
It is made of compressions and rarefactions
Oscillations are parallel to energy transfer
Its particles travel along with the wave
Oscillations are at right angles to energy transfer
30s
Which type of electromagnetic wave is detected by thermal imaging cameras?
Infrared
X-rays
Microwaves
Ultraviolet
20s
Too much exposure to which EM wave from the Sun can cause sunburn and increase the risk of skin cancer?
Infrared
Ultraviolet
Radio waves
Visible light
20s
Which list of EM waves is in order of increasing frequency?
Microwaves, infrared, visible light, ultraviolet
Microwaves, visible light, infrared, ultraviolet
Microwaves, infrared, ultraviolet, visible light
Infrared, microwaves, visible light, ultraviolet
30s
A radio wave has a frequency of 100 MHz. EM waves travel at 3 × 10⁸ m/s. What is its wavelength?
0.3 m
3000 m
3 m
30 m
60s
A sound wave passes from air into water and speeds up. What happens to its frequency and wavelength?
Frequency stays the same, wavelength decreases
Frequency increases, wavelength stays the same
Frequency stays the same, wavelength increases
Frequency decreases, wavelength increases
30s