Mystery Science: What would happen to a scream in outerspace

Front

What is sound?

Back

Sound is a type of energy made by vibrations that travel through the air or other materials.

Front

Why can’t sound travel in outer space?

Back

There is no air for vibrations to travel on.

Front

What are vibrations?

Back

Vibrations are rapid movements back and forth that create sound.

Front

What happens to sound when it travels through different materials?

Back

Sound travels at different speeds depending on the material; it travels fastest in solids.

Front

What is air pressure?

Back

Air pressure is the force exerted by the weight of air above us.

Front

How do sound waves travel?

Back

Sound waves travel by causing particles in the air (or other materials) to vibrate.

Front

What is a medium in terms of sound?

Back

A medium is a substance (like air, water, or solid materials) through which sound waves travel.

Front

Can sound travel through water?

Back

Yes, sound can travel through water, and it travels faster in water than in air.

Front

What is the relationship between sound and energy?

Back

Sound is a form of energy that is produced by vibrating objects.

Front

What happens to sound intensity as distance increases?

Back

As distance increases, sound intensity decreases, making it quieter.