SOUND

An ________ is a reflected sound.

• Vibration
• Echo
• Pitch
• Volume

Sound is a form of energy produced by ______________.

• Vibrations

• Distances

• Prisms

• Forces

Sound waves travel the FASTEST through _____________.

• Gases

• Liquids

• Solids

A place where no sound exists is...

• in the air.

• under water.

• space.

• all of the above

Why do we see lightning before we hear the thunder?

• Our eyes trick us.

• Light travels faster than sound.

• they're two separate things.

When people speak their ________ vibrate.

• Ear drums

• Vocal chords

• Ears

• Tongue

A sound with a high frequency has a _____ pitch. A sound with a ____ frequency has a low pitch.

• high, low

• low, high

• medium, high

• high, medium

______________ sounds have a larger amplitude

• Quiet

• Loud

What is this?

• Nerve

• Ear canal

• Cochlea

• Ear Drum

Sound does not travel in space because

• Distance is too far away.

• There is no matter in space.

• It is too dark.

• Space has planets.