describe wave motion in terms of amplitude, wavelength, frequency and period
describe wave motion in terms of amplitude, wavelength, frequency and period
describe evidence that for both ripples on water surfaces and sound waves in air, it is the wave and not the water or air itself that travels
describe the difference between transverse and longitudinal waves
describe how waves on a rope are an example of transverse waves whilst sound waves in air are longitudinal waves
define wavelength and frequency
recall and apply the relationship between speed, frequency and wavelength to waves, including waves on water, sound waves and across the electromagnetic spectrum:
wave speed (m/s) = frequency (Hz) × wavelength (m)
a) describe how the speed of ripples on water surfaces and the speed of sound waves in air may be measured
b) describe how to use a ripple tank to measure the speed/frequency and wavelength of a wave PAG4
a) describe the effects of reflection and refraction of waves at material interfaces
b) describe how to measure the refraction of light through a prism PAG8
c) describe how to investigate the reflection of light off a plane mirror PAG8
recall that waves travel in different substances at different speeds and that these speeds may vary with wavelength
**explain how refraction is related to differences in the speed of the waves in different substances **
recall that light is an electromagnetic wave
recall that electromagnetic waves are transverse