Sound

Front

What is sound?

Back

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

Front

How does sound travel through different materials?

Back

Sound travels faster through materials that have particles that are close together.

Front

What is compression in sound waves?

Back

Compression is the part of a sound wave where the particles are close together.

Front

What is rarefaction in sound waves?

Back

Rarefaction is the part of a sound wave where the particles are spread apart.

Front

What do a violin and a drum have in common?

Back

Both produce sound through vibrations.

Front

What is pitch?

Back

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

Front

What is frequency?

Back

Frequency is the number of vibrations or cycles per second, measured in Hertz (Hz).

Front

What is amplitude?

Back

Amplitude is the height of a sound wave, which determines the loudness of the sound.

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 in air?

Back

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