One important characteristic of sound waves is that they are ___________________ waves.

• mechanical

• short

• ultraviolet

• primary

Sound waves must travel through ___________________.

• air

• a medium

• an outward area

• a short

Tags

NGSS.MS-PS4-2

Sound waves can NOT travel through

• Air

• Water

• Earth

• space

Tags

NGSS.MS-PS4-2

The sound that we actually hear is the vibration of molecules.

• True

• False

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Longitudinal waves means that the disturbance of the wave travels in different directions as the wave.

• True

• False

Tags

NGSS.MS-PS4-1

This is a visual of a sound wave. It is an example of _____________________ wave.

• a mechanical

• a longitudinal

• both a mechanical and longitudinal

Tags

NGSS.MS-PS4-1

If there is a loud noise in your house, the sound travels through

• the air

• the air and the wall

• the air, the wall, the floor

• the air and most everything in the house

Tags

NGSS.MS-PS4-2

If there is a loud noise in space, the sound travels through

• the space particles

• small atoms in space

• space is a vacuum, so nothing

What is the source of a sound wave?

• Electricity

• Vibration

• Light waves

• Tiny nuclear explosions

The intensity of a sound wave is equal to the sound power (P) divided by the _______.

• Area

• Time

• Distance

• Energy