Unit 2 Sound Review

Front

What is frequency?

Back

Frequency is the number of wavelengths that pass a point each second, measured in Hertz (Hz).

Front

Why do air particles move when a speaker vibrates?

Back

Air particles move because the speaker pushes on the air particles, creating sound waves.

Front

What type of sound is produced by a loud, high pitch wave?

Back

A loud, high pitch sound is characterized by a high frequency and high amplitude.

Front

Which wave has a lower frequency: left or right?

Back

The left wave has a lower frequency.

Front

What determines if a sound is loud or soft?

Back

A sound is loud or soft depending on its amplitude.

Front

Define wavelength.

Back

Wavelength is the distance between two consecutive points of a wave that are in phase, such as crest to crest or trough to trough.

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 determines the loudness of the sound.

Front

How does pitch relate to frequency?

Back

Pitch is the perception of how high or low a sound is, which is directly related to the frequency of the sound wave.

Front

What happens to sound waves as they travel through different mediums?

Back

Sound waves travel at different speeds depending on the medium; they travel fastest in solids, slower in liquids, and slowest in gases.

Front

What is the relationship between frequency and wavelength?

Back

Frequency and wavelength are inversely related; as frequency increases, wavelength decreases.