The Nature of Waves

All waves

• are physical environments in which waves can occur.

• move perpendicular to the direction of the wave.

• move parallel to the direction of the wave.

• are disturbances made by energy within a medium or space.

A vibration is

• a physical environment in which waves occur.

• a back and forth motion of an object.

• a disturbance made by energy within a medium or space.

• none of the above.

The crest of a wave is

• the highest point of a transverse wave.

• the lowest point of a transverse wave.

• the highest point on a longitudinal wave.

• the lowest point on a longitudinal wave.

The lowest point on this wave is called a

• crest.

• trough.

• compression.

• rarefaction.

The parts of this wave where the particles are compressed is called

• the crest.

• the trough.

• the rarefaction.

• the compression.

The parts of this wave where the particles are spread apart is called

• the trough.

• the compression.

• the rarefaction.

• the crest.

Mechanical waves need a _______, where an electromagnetic wave do not.

• crest

• medium

• compression

• surface

In what way does a transverse way move?

• parallel to the direction of the wave

• tangentially to the direction of the wave

• at an 180 degree angle

• perpendicular to the direction of the wave

In what way does a longitudinal wave move?

• parallel to the direction of the wave

• back and forth

• tangentially to the direction of the wave

• perpendicular to the direction of the wave

What type of wave is this?

• compressional

• transverse

• longitudinal

• surface