Sound Knowledge

How is sound produced?

• By the vibration of particles
• By the transfer of particles 

Area of a longitudinal wave where particles are CLOSE together.

• Compression
• Rarefaction

Area of a longitudinal wave where particles are APART. 

• Compression
• Rarefaction

The reflection of sound waves off of a hard surface can create ______.

• A wave
• An echo 

Soft surfaces _______ sound waves. 

• Reflect
• Absorb

Sound travels FASTEST through which of these materials?

• Air
• Empty space
• Metal
• Water

Sound is caused by? 

• force
• vibrations
• instruments

What is vibration?

• how loud a sound is
• the back and forth movement of matter
• how high or low a sound is
• the loudness or softness of a sound

Sound is a form of? 

• energy
• pitch
• volume

Measure of how high or low a sound is

• amplitude
• compression
• speed of sound
• pitch