What is sound?

• A type of light wave

• A type of mechanical wave

• A type of chemical reaction

• A type of electrical current

Tags

NGSS.MS-PS4-1

NGSS.MS-PS4-2

Why can sound not travel through a vacuum?

• Because there is no light in a vacuum

• Because there is no medium to help it travel

• Because sound waves are too weak

• Because vacuums absorb sound

What determines the volume of a sound?

• The speed of the vibration

• The size of the object vibrating

• The strength of the vibration

• The distance from the sound source

Tags

NGSS.MS-PS4-1

What happens to the pitch of a sound when an object vibrates quickly?

• It becomes a light wave

• It remains the same

• It becomes a high-pitched sound

• It becomes a low-pitched sound

Tags

NGSS.4-PS4-1

What causes the various sounds in the world to be different?

• The color of the objects producing them

• The materials the objects are made of

• The types of vibrations created

• The temperature of the environment