Stage 9 Science - Unit 6 Revision Quiz

As the loudness of a sound increases, the ___________ of a sound also increases.

• frequency

• amplitude

• pitch

As the pitch of a sound increases, the ___________ of a sound also increases.

• frequency

• amplitude

• loudness

Draw the sound wave of a loud, high-pitched sound.

Draw the sound wave of a quiet, high-pitched sound.

Draw the sound wave of a quiet, low-pitched sound.

Draw the sound wave of a loud, low-pitched sound.

Which sound wave is the quietest?

• 1

• 2

• 3

• 4

Which sound wave has the highest pitch?

• 1

• 2

• 3

• 4

Which sound wave has the lowest pitch?

• 1

• 2

• 3

• 4

When sound waves met, they can reinforce or cancel out.

A peak meeting another peak and a trough meeting another trough is an example of...

• reinforcing

• cancelling