7th Gr U5 L1 & 2 Vocab

Front

Disturbance that transfers energy from one place to another.

Back

wave

Front

Material through which a wave travels.

Back

medium

Front

Particles move back and forth in the same direction as the wave travels, or parallel to it.

Back

longitudinal wave

Front

Particles move perpendicularly to wave direction.

Back

Transverse wave

Front

A wave that needs a medium to travel

Back

mechanical wave

Front

Disturbance in electric and magnetic fields.

Back

electromagnetic wave

Front

Measure of how far particles move from their rest position.

Back

Amplitude

Front

Distance from a point on a wave to the same point on the next wave

Back

wavelength

Front

Time a wave takes to repeat

Back

wave period

Front

Cycles in 1 s

Back

frequency