Sound Waves Review

Front

What does the elasticity of a substance describe?

Back

The elasticity of a substance describes how fast or slow its particles bounce back-and-forth as vibrations move through the object.

Front

What is the relationship between frequency and pitch?

Back

High frequency sounds have high pitch.

Front

How does the pitch of a sound change when a sound source moves toward you?

Back

When an ambulance moves toward you, it sounds high-pitched.

Front

What type of pitch do short sound waves produce?

Back

Short sound waves are high pitched.

Front

What is the Doppler effect?

Back

The Doppler effect is observed when a wave-making source moves toward an observer, causing a change in frequency and pitch.

Front

What happens to the pitch of a sound as its frequency increases?

Back

As the frequency of a sound increases, its pitch becomes higher.

Front

What is a sound wave?

Back

A sound wave is a type of mechanical wave that travels through a medium (solid, liquid, or gas) due to the vibration of particles.

Front

What is the medium in which sound travels?

Back

The medium can be a solid, liquid, or gas through which sound waves propagate.

Front

What is the difference between high and low frequency sounds?

Back

High frequency sounds have more vibrations per second and are perceived as high-pitched, while low frequency sounds have fewer vibrations per second and are perceived as low-pitched.

Front

What is an example of the Doppler effect in everyday life?

Back

An example of the Doppler effect is the change in pitch of a siren as an ambulance passes by.