SOUND WAVES_G7

Front

As the fire truck approached Mary, the pitch of the siren got higher. Once the fire truck passed and moved away, the siren's pitch got lower. This change in pitch is because of a change in the sound wave's

Back

frequency.

Front

If the distance represented by the letter A were increased, how would it change the way the sound was heard? Options: The sound would be higher, The sound would be lower, The sound would be softer, The sound would be louder

Back

The sound would be louder

Front

Sound is produced by

Back

vibrations of molecules

Front

Sound is a form of _________________ that travels as waves through a ________________.

Back

energy/ medium

Front

Why does sound not travel in space?

Back

There is no matter in space.

Front

What medium does sound travel through slowest?

Back

gas

Front

Why is sound able to travel faster through a solid than a gas?

Back

Solid molecules are packed tightly.

Front

What happens to the sound wave when the student speaks louder?

Back

The amplitude increases

Front

Which materials reflect sound well?

Back

Front

Which object will vibrate faster if tapped with a metal spoon? Options: A metal can, A glass jar, A plastic cup, A wooden bowl

Back

A metal can