Sound Review

Sound must always travel through a ______. It cannot travel through a vaccuum.

• air

• medium

• material

• empty space

High pitch sounds also have a high _______.

• frequency

• amplitude

• wavelength

• rest point

To make a louder sound on an instrument, the musician must:

• stop playing

• apply less force

• play a different note

• apply more force

What type of frequency and pitch does this wave have?

• high frequency, low pitch

• low frequency, high pitch

• low frequency, low pitch

• high frequency, high pitch

Which wave has a higher amplitude?

• 1

• 2

• 3

• 1 and 3

How does sound travel through a medium?

• The air travels from the sound source to your ears.

• The energy from the sound source travels and bumps into the particles, making them vibrate and hit each other.

• The particles travel from the source to your ears.

• In a straight line.

A high amplitude wave with have a ______ sound.

• low pitch

• loud

• soft

• high pitch

A wave with a longer wavelength will have a _______ sound, and a ________ frequency.

• high pitch, low

• low pitch, low

• high pitch, high

• low pitch, high

The distance between the rest point of a wave and the crest or trough is called the _________.

• wavelength

• rest point

• crest

• amplitude

The number of waves over a given time period is called __________.

• frequency

• wavelength

• crest

• trough