ET unit 9 -- review 1

The distance measured from the top of one wave to the top of the next wave is called the ___.

• wavelength

• frequency

• amplitude

• crest

Sound, light, and motion of water can all be thought of as ___.

• a phase

• a refraction

• a reflection

• a wave

Oscillations in ___ waves, such as sound waves, are parallel to the direction the wave travels.

• polarized

• opposite

• longitudinal

• transverse

When a long rope is oscillated sideways, the wave created along it is a ____ wave.

• transverse

• compressional

• universal

• constructive interference

The lowest part of the wave is called ___.

• the amplitude

• the phase

• the node

• the trough

Waves undergoing ___ through an arrow opening will change their direction and the shape of their wavefronts.

• absorption

• diffraction

• reflection

• polarization

A wave that is passing into a different medium, thereby decreasing the wave's amplitude (and energy), is undergoing ___.

• diffraction

• refraction

• reflection

• oscillation

The top of the wave is called ___.

• the wavelength

• the wavefront

• the amplitude

• the crest

Waves bounce off of an obstruction in ___.

• diffraction

• refraction

• reflection

• oscillation

When a stone is dropped in a pond, the waves that travel outward from it have a circular ___.

• wavefront

• wavelength

• frequency

• period