Examlex
The average distance between the Earth and the Moon is 240,000 miles. Express this distance in kilometers. (1 mi = 1609 m)
Sound Waves
Vibrations that travel through the air or another medium and can be heard when they reach a person's or animal's ear.
Amplitude
The extent or range of a vibratory movement, measured from the position of equilibrium, commonly used to describe the magnitude of sound waves or other oscillations.
Frequency
The number of occurrences of a repeating event per unit of time, often used in the context of waves (such as sound or light) to indicate cycles per second (Hz).
Timbre
The quality of a musical note or sound that distinguishes different types of sound production, such as voices or musical instruments.
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