Sound

Sound- Vibration

Draw a sound wave.

Crest- The highest point of a wave

Trough- The lowest point of a wave

Frequency- How often a sound wave crests

Draw two sound waves that have a different frequency.

If the frequency of a sound wave changes, what is the audible difference?

The pitch

Amplitude- The height of a sound wave

Draw two sound waves that have different amplitude.

If the amplitude of a sound wave changes, what is the audible difference?

The volume

Wavelength-The distance between two crests

Draw two sounds that have a different wavelength.

If the wavelength of a sound wave changes, what is the audible difference?

The pitch

Draw two sound waves, the first one having a higher frequency and greater amplitude than the second one.

Fill in the blanks in the following equation using the word bank below.

higher frequency = shorter wavelength

lower frequency = longer wavelength

shorter

lower

longer

higher