What Would Happen If You Scream in Outer Space?

Front

What happens to sound in outer space?

Back

Sound cannot travel in outer space because there is no air or material for sound waves to vibrate through.

Front

Can you hear sound in a vacuum?

Back

No, you can't hear sound in a vacuum because there are no particles to carry the sound waves.

Front

What do sound waves need to travel?

Back

Sound waves need a medium, like air, water, or solid materials, to travel through.

Front

What is a vibration?

Back

A vibration is a rapid back-and-forth movement that creates sound.

Front

What is the role of the ear drum in hearing?

Back

The ear drum vibrates when sound waves hit it, allowing us to hear.

Front

True or False: Sound can travel through solid objects.

Back

True, sound can travel through solids, liquids, and gases.

Front

What is the medium in which sound travels on Earth?

Back

The medium is usually air, but sound can also travel through water and solids.

Front

What happens to sound waves when they hit a solid object?

Back

They can reflect, absorb, or transmit through the object.

Front

What is the speed of sound in air?

Back

The speed of sound in air is approximately 343 meters per second.

Front

What is an example of sound traveling through water?

Back

Whales communicate with each other through sound waves that travel through water.