Waves of Sound - Mystery Science

Front

What is an echo?

Back

An echo is the sound that bounces off an object and comes back to the listener.

Front

What is a vibration?

Back

A vibration is when something moves back and forth.

Front

What does sound create?

Back

Sound creates vibrations.

Front

True or False: A sound wave travels.

Back

True.

Front

What is sound?

Back

Sound is a type of energy made by vibrations that moves through a medium such as a gas, liquid, or solid.

Front

What is a medium in the context of sound?

Back

A medium is a substance (gas, liquid, or solid) through which sound waves travel.

Front

What happens when sound waves hit a surface?

Back

When sound waves hit a surface, they can be reflected, absorbed, or transmitted.

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 a sound wave?

Back

A sound wave is a type of wave that is created by vibrating objects and travels through a medium.

Front

What is the relationship between sound and vibrations?

Back

Sound is produced by vibrations; when an object vibrates, it creates sound waves.