Required Practical · Waves
Measure wavelength and frequency, then find the wave speed
AQA Combined Science: Trilogy · Physics Paper 2
Walk the method
Order the method
Ripple tank (water waves)
Waves on a string
12 Hz
signal generator
lamp
vibrating beam (dipper)
screen — projected wavefronts
measure 10 λ, then ÷ 10
Waves spread across the tank surface
30 Hz
signal generator
vibration generator
masses (tension)
one loop = ½ λ
A standing wave forms on the string
wave speed v = f λ
v in m/s · f in Hz · λ in m
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