Unit 6 - Test Review

Front

What is an echo?

Back

An echo is a sound wave that has been reflected.

Front

What color is produced when blue and red light are combined?

Back

Magenta.

Front

What is the lowest point on a transverse wave called?

Back

Trough.

Front

What color is produced when red and green light are combined?

Back

Yellow.

Front

Do sound waves move faster than light waves?

Back

False.

Front

What is the highest point on a transverse wave called?

Back

Crest.

Front

What is the term for the distance between two consecutive crests or troughs in a wave?

Back

Wavelength.

Front

What is the term for the number of waves that pass a point in one second?

Back

Frequency.

Front

What is the speed of sound in air at room temperature?

Back

Approximately 343 meters per second.

Front

What is the phenomenon called when light changes direction as it passes from one medium to another?

Back

Refraction.