8.2 Sound Waves

Front

What is amplitude in sound waves?

Back

Amplitude refers to the height of the wave, which determines the loudness of the sound. Higher amplitude means louder sound, while lower amplitude means quieter sound.

Front

How does intensity relate to sound?

Back

Intensity is the power per unit area of a sound wave. A wave with greater intensity produces a louder sound.

Front

What does compression mean in the context of sound waves?

Back

Compression is the region in a sound wave where particles are close together, resulting in increased pressure.

Front

What is rarefaction in sound waves?

Back

Rarefaction is the region in a sound wave where particles are spread apart, resulting in decreased pressure.

Front

Define vibration in the context of sound.

Back

Vibration is a rapid back-and-forth motion of particles in solids, liquids, or gases that produces sound.

Front

What part of the ear vibrates to produce sound?

Back

The ear drum is a thin muscle that vibrates in response to sound waves.

Front

What is the relationship between frequency and pitch?

Back

Frequency refers to the number of waves that pass a point in a given time. Higher frequency results in a higher pitch, while lower frequency results in a lower pitch.

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.

Front

What is the difference between longitudinal and transverse waves?

Back

Longitudinal waves have particle motion parallel to the direction of wave propagation, while transverse waves have particle motion perpendicular to the direction of wave propagation.

Front

What is the role of the ear canal?

Back

The ear canal directs sound waves from the outer ear to the eardrum.