Video & Flashcard - Sound: Wavelength, Frequency, and Amplitude

Front

What is the unit of frequency?

Back

Hertz

Front

What is a subsonic sound?

Back

A sound with a frequency lower than 20 Hertz.

Front

What does the amplitude of a sound wave represent?

Back

The height of the wave.

Front

What does the wavelength of a sound wave represent?

Back

The width of the wave.

Front

What is the range of human hearing?

Back

20 Hertz to 20,000 Hertz.

Front

What is frequency in the context of sound?

Back

The number of waves that pass a point in one second.

Front

How does amplitude affect sound?

Back

Higher amplitude means louder sound.

Front

What is the relationship between wavelength and frequency?

Back

As wavelength increases, frequency decreases.

Front

What is the speed of sound in air?

Back

Approximately 343 meters per second at room temperature.

Front

What is ultrasonic sound?

Back

A sound with a frequency higher than 20,000 Hertz.