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Aug 28, 2018 · Characteristics of Sound Waves. Sound cannot travel through a vacuum. This is very much in contrast with the property of light. Another difference which is above the scope of the syllabus is the fact that sound waves are generally longitudinal waves and light waves are transverse waves.
Sound Wave Characteristics. After understanding what is sound, let us study the characteristics of the sound wave. The distance between two consecutive peaks or troughs is termed as the wavelength of the wave or the period. The number of cycles per unit time is termed as the frequency of the sound. Frequency is measured in cycles per second or ...
Reflection of sound is similar to the reflection of light. The reflection of sound obeys the following laws of reflection. The angle of incidence is equal to the angle of reflection. The incident sound, the normal sound and the normal sound all lie in the same plane. When a sound hits a hard surface, it reflects back to its source.
The pitch of a sound depends on the frequency while loudness of a sound depends on the amplitude of sound waves. Amazingly, many musicians, who have been trained are capable of detecting a difference in frequency between two separate sounds that are as little as 2 Hz. Pitch is dependent on the change in the frequency.
CHARACTERISTICS OF SOUND: We can distinguish between the sounds produced by different instruments by three characteristics, namely, a. Pitch or shrillness: Women are said to have a shrill and high-pitched voice, whereas men produce a flat and low-pitched sound. This is due to their shorter vocal cords.
The amplitude of a sound wave is the measure of the height of the wave. The amplitude of a sound wave can be defined as the loudness or the amount of maximum displacement of vibrating particles of the medium from their mean position when the sound is produced. It is the distance between the crest or trough and the mean position of the wave.
Speed of Sound. Sound travels through different media at different speeds. The speed of sound depends on the properties of the medium: pressure, density and temperature. Speed of Sound: Solids > Liquids > Gases. Speed of sound in air = 331 m/s at 0 0 C and 344 m/s at 22 ∘ C. When a source emits sound with speed greater than the speed of sound ...
1. Turn off unnecessary appliances 2. Use earplugs 3. Follow limits of noise level. In Class 8 Chapter 13 Sound Notes, the properties of sound and how sound is perceived by humans are discussed. Also, provided here is the extra questions for the chapter.
Three characteristics of sound are. (i) Pitch. (ii) Quality. (iii) Loudness. (i) Pitch depends on the frequency of the sound waves produced by the source. (ii) Quality (or Timbre) of the sound depends on the waveform. (iii) Loudness depends on the amplitude. Suggest Corrections.
When sound waves hit the surface of a solid or light, it bounces back to the same medium. This is called the reflection of sound. Sound waves, like light waves, follow the laws of reflection. Property 5: Timbre. Timbre is the property used to differentiate sounds of the same frequency. Timbre depends on the material through which the sound is ...
