8th Science Unit 7 Vocabulary

Front

Part of the ear that detects sound waves

Back

Cochlea

Front

A measure of wave energy...the distance from the waves resting position to the crest or trough

Back

Amplitude

Front

The distance between two identical points in a wave

Back

Wavelength

Front

Greek symbol for wavelength

Back

Lamda

Front

The high or low sound that is determined by the frequency of the wave

Back

Pitch

Front

The number of waves that pass a point in one second

Back

Frequency

Front

The part of a wave where particles are close together

Back

Compression

Front

The part of a wave where particles are spread apart

Back

Rarefaction

Front

The change in frequency of a wave in relation to an observer who is moving relative to the wave source

Back

Doppler Effect

Front

The interaction of waves when they meet

Back

Interference