Unit 6 Sound and Waves

Front

Any motion that repeats itself at regular cycle is called ____.

Back

Periodic motion.

Front

When the frequency of a wave increases, what happens to the wavelength?

Back

The wavelength decreases.

Front

Regular disturbances that carry energy through matter or space are called _____.

Back

Wave.

Front

The number of wavelengths that pass a point each second is called _____.

Back

Frequency.

Front

If someone is standing to the left of this wave, they would hear a ______ pitch than someone standing to the right of it.

Back

Lower.

Front

What is the term for the highest point of a wave?

Back

Crest.

Front

What is the term for the lowest point of a wave?

Back

Trough.

Front

What type of wave requires a medium to travel through?

Back

Mechanical wave.

Front

What is the relationship between frequency and period?

Back

Frequency is the inverse of the period (Frequency = 1/Period).

Front

What is a longitudinal wave?

Back

A wave in which the particles of the medium move parallel to the direction of the wave's propagation.