BrainPOP Jr. - Sound Energy

Which parts of our ears vibrate to help us

hear?

• 
• 
• 
• 

Which describes how loud or soft a sound is?

• echo

• pitch

• volume

• vocal cord

Tags

NGSS.MS-PS4-1

Which sound has the lowest volume?

• A.

• B.

• C.

• D.

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

What happens when you hear an echo?

• Sound waves bounce back to your ear.

• Sound waves become faster and stronger.

• Sound waves stop moving back and forth.

• Sound waves stop things from vibrating.

Tags

NGSS.MS-PS4-2

Which pair of words are opposites?

• shout, scream

• whisper, roar

• bellow, shriek

• holler, howl