sound waves

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

• frequency
• amplitude
• speed
• volume

This is what you get when sound waves are reflected, or bounce back, off of a hard surface.

• Amplitude
• Pitch
• Volume
• Echo

What is a pitch?

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

Bats use ________ to locate mosquitoes in the air.

• solar

• ecology

• echolocation

• refraction

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

A disturbance that travels through a medium as a longitudinal wave

• sound
• wavelength
• pitch
• frequency

The number of wavelengths that pass a point each second

• frequency
• wavelength
• pitch
• amplitude

Material (matter) through which a wave travels

• medium
• Doppler Effect
• sound
• pitch

When a sound is louder what measurement gets bigger?

• Frequency 
• Amplitude 
• Wavelength 
• Crest

Why is the school library covered with carpet?

• So everyone can make a lot of noise
• to help absorb sounds to keep it quiet
• because it looks good
• to help absorb sounds so it can stay noisy