Sound Waves and Their Properties

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

The frequency and wavelength of a sound wave are inversely proportional, meaning that as the frequency increases, the wavelength decreases, and vice versa.

The unit of measurement for the frequency of a sound wave is Hertz (Hz), which represents the number of oscillations or cycles per second.

The unit of measurement for the amplitude of a sound wave is Pascals (Pa), which represents the amount of pressure exerted by the sound wave.

The amplitude and loudness of a sound wave are directly proportional, meaning that as the amplitude increases, the loudness also increases.

The unit of measurement for the loudness of a sound wave is Decibels (dB), which represents the relative intensity of the sound wave compared to a reference level.

The phenomenon of sound waves reflecting off a surface is called reflection.

The phenomenon of sound waves bending around an obstacle is called diffraction.

The phenomenon of two or more sound waves combining to create a new sound wave is called interference.

The term used to describe the ability of a material to absorb sound waves is absorption.

The term used to describe the ability of a material to reflect sound waves is reflection.

The term used to describe the ability of a material to transmit sound waves is transmission.

The term used to describe the persistence of sound in a space after the sound source has stopped is reverberation.

The term used to describe the minimum sound level that can be detected by the human ear is the threshold of hearing.

The term used to describe the maximum sound level that can be tolerated by the human ear without causing pain is the threshold of pain.