Waves & Optics
Waves & Sound
Speed, frequency, wavelength and the Doppler shift
6 skills · Last skill is Premium
Waves and sound cover wave speed and graphs, interference, the electromagnetic spectrum and polarisation, echoes, the Doppler shift, sound intensity and standing-wave harmonics.
Skills in this topic
Wave Speed & Frequency
Link speed, frequency and wavelength, and find the speed of a wave on a string
Wave Graphs & Interference
Read wave graphs against position and time, use the sine-wave equation, and find where two sources reinforce or cancel
Electromagnetic Spectrum
Turn wavelength into frequency for light and radio, place a wave in its band, and send light through polarisers
Sound & Doppler
Time an echo, adjust the speed of sound for temperature, and shift a frequency
Sound Intensity & Decibels
Calculate sound intensity from a point source and express sound level in decibels
Standing Waves
Find the harmonics of a string and of open and closed pipes
Exam paths that include this topic
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