The material through which waves travel.

When a wave bounces off a surface that it cannot pass through.

_____________'does not change the speed or frequency of a wave but the wave can be flipped upside down

Sound waves are longitudinal or transverse waves

A wave that causes the medium to vibrate at right angles to the direction in which the wave travels.

The bending of a wave as it enters a medium at an angle

When a wave enters a medium at an angle, _____________ occurs because one side of the wave moves more slowly than the other side.

Sound waves travel fastest in what medium? (Solid, liquid or gas)

A wave in which he vibration of the medium is parallel to the direction the wave travels.

Bending of a wave as it moves around an obstacle or passes through a narrow opening

A wave ___________ more if it's wavelength is large compared to the size of an opening

A change in Sound frequency caused by motion of the source, motion of the listener or both.

The number of complete cycles in a given time.

When two or more waves combine to produce A wave with smaller displacements

The more energy a wave has the greater the ________________

When two or more waves combine to produce a wave with a larger displacement