Waves the electromagnetic spectrum
3 marks · NormalDescribe how the frequency and wavelength change as you move from radio waves to gamma rays across the electromagnetic spectrum.
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Must show: Frequency increases, Wavelength decreases, Direction from radio to gamma specified
Also accept: Frequency increases and wavelength decreases as you move from radio waves to gamma rays
Common mistakes: Incorrectly saying frequency or wavelength stays the same; Mixing up direction
Show mark scheme and worked solution
Marking points
B1 · 1 mark · States frequency increases as you move from radio to gamma.
B2 · 1 mark · States wavelength decreases as you move from radio to gamma.
B3 · 1 mark · Describes the change explicitly in the direction from radio to gamma rays.
Worked solution
As you move from radio waves to gamma rays, frequency increases and wavelength decreases.