Sound Waves and Their Properties

Front

What is sound?

Back

Sound is a disturbance that travels through a medium.

Front

What does loudness describe?

Back

Loudness describes your perception of the energy of a sound.

Front

How is frequency measured?

Back

Frequency is measured in Hertz.

Front

What causes the Doppler effect?

Back

The Doppler effect is caused when a sound source moves, changing the frequency of the waves due to the motion of the source.

Front

What is the intensity of a sound wave?

Back

The intensity of a sound wave is the amount of energy the wave carries per second through a unit area.

Front

What is a medium in the context of sound?

Back

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

Front

What is amplitude in sound waves?

Back

Amplitude is the maximum extent of a vibration or oscillation, measured from the position of equilibrium, and it relates to the loudness of the sound.

Front

What is the relationship between frequency and pitch?

Back

Higher frequency sound waves produce higher pitch sounds, while lower frequency sound waves produce lower pitch sounds.

Front

What is the speed of sound in air at room temperature?

Back

The speed of sound in air at room temperature (20°C) is approximately 343 meters per second.

Front

What is an echo?

Back

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