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Measuring Waves

DisplacementThe distance and direction from the equilibrium position.
AmplitudeThe maximum displacement from the equilibrium position.
WavelengthThe least difference (minimum distance) between two adjacent vibrating particles with the same displacement.
Time PeriodThe time taken for one complete wave to pass a fixed point.FrequencyThe number of cycles of vibration per secondor the number of complete waves passing a point per second
f=1
T
T = time period

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Specification: AQA Physics (7407), AS-level, 3.3.1.2 Longitudinal and transverse waves and 3.3.1.3 Principle of superposition of waves and formation of stationary waves. Topic: Waves.

Key terms in this lesson

Refraction
The change of direction of a wave as it crosses a boundary between two media in which it travels at different speeds.

More in Waves

All 24 lessons in Waves · All AQA AS-level Physics topics