8th Science Unit 7 Vocabulary

Front

Greek symbol for wavelength

Back

Lamda

Front

The change in the frequency of a wave as the wave maker moves toward or away from an observer

Back

Doppler Effect

Front

Part of a longitudinal wave where the particles are spread apart

Back

Rarefaction

Front

The material in which waves travel through

Back

Medium

Front

A wave that does not need a medium to travel through

Back

Electromagnetic wave

Front

The distance between two consecutive crests or troughs in a wave

Back

Wavelength

Front

The height of a wave from its rest position to its crest

Back

Amplitude

Front

A wave that requires a medium to travel through

Back

Mechanical wave

Front

The bending of waves around obstacles or through openings

Back

Diffraction

Front

The interaction of waves when they meet

Back

Interference