Sound Review

Sound energy travels as compression waves that cause particles to---

• vibrate

• freeze

• shrink

• crest

Which of the following shows a compression wave?

• 
• 
• 
• 

Which letter on the diagram shows compression?

• A

• B

• C

Which letter on the diagram shows rarefaction?

• A

• B

• C

The greater the frequency (more vibrations), the---

• higher the pitch

• lower the pitch

• softer the sound

• louder the sound

A high-pitched sound results from--- (Select ALL that apply)

• low frequency

• high frequency

• short tube

• long tube

If you hit each bottle with a spoon, which would make the lowest-pitched sound?

• bottle 1

• bottle 3

• bottle 4

• bottle 6

Sound travels the fastest through a---

• solid

• liquid

• gas

• vacuum

Sound travels slower when the particles in matter---

• are close together

• are spread far apart

• slide past each other easily

• vibrate back and forth

Sound cannot travel through a---

• solid

• liquid

• gas

• vacuum