Sound Waves

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

travels through solids fastest because the molecules are closer together

• speed of sound
• wavelength
• frequency
• amplitude

Material (matter) through which a wave travels

• medium
• Doppler Effect
• sound
• pitch

When the sound source moves, the frequency changes
ex. police car siren sounding lower pitch after the car passes

• pitch
• frequency
• Doppler Effect
• medium

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

• rarefaction
• compression
• crest
• trough

A part in a longitudinal wave where the particles are spread apart

• compression
• rarefaction
• crest
• trough

A reflected sound wave

• frequency
• pitch
• echo
• rarefaction

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

• frequency
• amplitude
• speed
• volume

What is a pitch?

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

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest