![]() ![]() This property is very much in the contrast with the property of light. A sound wave cannot travel through the vacuum. The frequency of the vibrating source of sound is computed in terms of cycles per second. In the sound, frequency is also termed as Pitch. This parameter then decides about the sound is perceived as high pitched or low pitched. These are amplitude, frequency, wavelength, and timbre.įrequency in the sound wave refers to the rate of the vibration of the sound travelling through the air as a medium. Many characteristics of the sound waves are important to understand. This compression and expansion further create a minute pressure difference which we are perceiving as the sound. The sound is a wave, which moves through some medium by alternately contracting and expanding parts of the medium through which it is travelling. the to and fro motion of the body is known as Vibration. Due to this, we may feel the shaking effect. Now instead of just listening to the bell, put the finger on the bell after hearing it. When some strike a bell, it makes a loud ringing noise. ![]() Let’s study the decibel unit in a simple manner.Ī sound is the form of energy, similar to electricity, heat, or light. This logarithmic quantity is the power level or field level. It is to express the ratio of one value of a power or field quantity to another on a certain logarithmic scale. Thus, a suitable unit for the measurement of sound is used. If we consider the power, the sound of the thunderclap is approximately 1,000,000,000,000 times more powerful than the power of sound which is in the smallest audible range. ![]() As our ear is incredibly sensitive, and we can hear everything from our fingertip brushing lightly over the skin to a loud thunderclap. Therefore, the intensity of sound is needed to be measured using some standard units. Its measurement is also important for our safety, as the loud noise can actually damage our hearing capacity. The sound is all around us and we can measure it too. ![]()
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