G4 Unit 1

Measures how high or low the sound is

• sound

• volume

• pitch

• frequency

Measures how loud or soft of the sound is

• sound

• volume

• pitch

• frequency

How does sound travel?

• Sound travels as a straight line.

• Sound travels as a zigzag line.

• Sound travels as a wave.

• Sound travels in a circle.

An object that does not vibrate cannot produce ________.

• sound

• electricity

• light

• heat

Why can't we hear sounds in space?

• Because it's dark

• Space has no air

• Because we are wearing a helmet

• I don't know

Sound is a form of ______________.

• anger

• air

• energy

• gas

Sound is a form of energy produced by ______________.

• teachers

• water

• echo

• vibration

True or False: Sound needs a medium to travel.

• True

• False

Bats use __________ to find food.

• sonar

• sound

• echolocation

• eyes

Sound going over _______ db is harmful.

• 20

• 65

• 70

• 85