Waves and Sounds Retake Test

Front

What is an echo?

Back

An echo is a reflection of sound that arrives at the listener after a delay.

Front

True or False: An echo is a diffracted sound wave.

Back

False

Front

What is the frequency of a wave?

Back

The number of complete cycles of the wave that pass a given point in one second.

Front

What does a wave carry from place to place?

Back

Energy only.

Front

What does amplitude refer to in a wave?

Back

The height of the wave from its rest position.

Front

What is the wavelength of a wave?

Back

The distance between two consecutive crests of the wave.

Front

What is the speed of a wave?

Back

The speed at which the wave travels through a medium.

Front

What is refraction?

Back

The bending of a wave as it passes from one medium to another.

Front

What is diffraction?

Back

The spreading out of waves when they pass through a narrow opening or around obstacles.

Front

What is reflection in terms of waves?

Back

The bouncing back of a wave when it hits a barrier.