Sound Review

How loud a sound is describes the sound's

• pitch

• energy

• volume

Sound can move...

• in waves

• when there are no vibrations

• when there is no light

What causes a drum to make sound?

• vibrations

• heat

• gravity

What happens when something vibrates?

Choose all correct answers.

• It moves back and forth quickly.

• It can make sound.

• It can make materials move.

Beth thinks that materials that vibrate can make sound. Which test should she do to see this?

• She sound listen to sounds in her neighborhood.

• She should boil a pot of water.

• She should pluck a guitar string.

Does this make a loud or soft sound?

• loud

• soft

What would happen if you plucked the string of a guitar in the picture? (Choose 2)

• It would vibrate

• It would make a sound

• It would make other materials in the room move

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

An object that does not vibrate cannot produce

• sound
• light
• heat
• electricity

Does this make a loud or soft sound?

• loud

• soft