Properties of sound

Front

What is sound?

Back

Sound is a type of energy made by vibrations that travels through air, water, or solids.

Front

How does sound travel through different materials?

Back

Sound travels fastest through solids, slower through liquids, and slowest through gases.

Front

What happens to the pitch of a sound when a string is tightened?

Back

As a string is tightened, the pitch of the sound gets higher.

Front

What type of materials can reflect sound?

Back

Both hard and smooth materials can reflect sound.

Front

What is pitch?

Back

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

Front

What is the relationship between distance and sound loudness?

Back

The closer you are to the sound source, the louder the sound will be.

Front

What is a sound wave?

Back

A sound wave is a wave of pressure that travels through a medium (like air or water) and can be heard when it reaches a person's or animal's ear.

Front

What is frequency in relation to sound?

Back

Frequency is the number of sound wave cycles that occur in one second, measured in Hertz (Hz). Higher frequency means a higher pitch.

Front

What is amplitude in sound waves?

Back

Amplitude refers to the height of the sound wave and determines the loudness of the sound; higher amplitude means louder sound.

Front

What is an echo?

Back

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