Physics

It is a pressure variation transmitted through matter as a longitudinal wave.

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Sound

It has frequency, wavelength and speed and Also reflect and interfere.

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Sound waves

What is the speed of the sound in air at room temperature (20°C)?

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343 m/s

The amplitude of a sound wave is measured in?

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Decibels (dB)

The loudness of a sound as perceived by the ear and brain depends mainly on its?

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Amplitude

It refers to the energy that travels in a given area perpendicular to the direction of the energy flow per unit time.

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Intensity

The frequency of a sound wave is heard as its?

The lower its ___, the lower its frequency

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pitch

It is a Device for detecting sounds whose frequencies range from 20 to 20,000 Hz (audible range).

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Ear

Sound waves above 20,00 Hz are called?

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ultrasonic waves

Those below 20 Hz are called what?

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infrasonic waves