Sound

Front

What is sound?

Back

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

Front

Can sound travel through a vacuum?

Back

No, sound cannot travel through a vacuum because there are no particles to carry the sound waves.

Front

What is vibration?

Back

Vibration is the back and forth movement of matter that creates sound.

Front

What is frequency in relation to sound?

Back

Frequency is the number of vibrations per second, which determines the pitch of the sound.

Front

What are vocal cords?

Back

Vocal cords are the parts of the throat that vibrate to produce sound when we talk.

Front

What is amplitude?

Back

Amplitude refers to the height of a sound wave, which determines how loud or soft a sound is.

Front

What is pitch?

Back

Pitch is how high or low a sound is, which is determined by the frequency of the sound wave.

Front

What is an echo?

Back

An echo is a reflection of sound that arrives at the listener after a delay.

Front

What is the speed of sound?

Back

The speed of sound is the distance sound travels in a certain amount of time, typically about 343 meters per second in air.

Front

What is a sound wave?

Back

A sound wave is a wave of pressure that travels through a medium, such as air, water, or solids.