Sound waves

What is transported by a wave?

• air

• energy

• matter

• particles

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

How high or low a sound is; depends on the frequency (greater frequency= higher pitch)

• pitch
• frequency
• sound
• medium

The part of a longitudinal wave where the particles of the medium are close together.

• rarefaction
• compression
• crest
• trough

A disturbance that transfers energy from one place to another without transferring energy

• wave
• trough
• pitch
• sound

As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's

• concussion. 
• amplitude. 
• reflection.
• frequency. 

If you want to change the pitch of a sound, you have to change the ___

• frequency
• amplitude
• speed
• volume

This is the unit used to measure the volume of a sound. 

• Decibel
• Medium
• Vibration
• Oscilloscope

What is a pitch?

• highness or lowness of a sound
• the intensity of a vibration
• the amplitude of the sound wave
• volume of sound

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude