Monday, 26 March 2018

Section 3 b) Key Words

Amplitude: The height or size of a wave. Measured in metres.

Crest: The highest point of the wave.

Diffraction: When a wave is bent and spread as it passes around an edge or through a gap.

Frequency: The number of waves in a certain time period.

Longitudinal: A wave that oscillates parallel to the direction of travel (e.g. sound waves)

Transverse: A wave that oscillates perpendicular to the direction of travel (e.g. waves on the electromagnetic spectrum)

Trough: The lowest point of the wave.

Wavelength: The distance between the crests of two waves, the length of one wave.

Wave period: The length of time it takes for one wave to be completed.


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