Explain sound and charatics of sound …

Sound is a type of energy. Sound travels in the form of wave from one place to another.

Production of sound:

Sound is produced because of the vibration of any object. In other words, when an object is vibrated it produces sound.

Examples:

• Sound can be produced by clapping of palms.
• Sound can be produced by vibrating a string.
• Sound can be produced by beating a table or diaphragm of a drum.
• Sound is produced by a flute because of vibration of air column.
• Sound is produced by a guitar because of vibration of its string.

Thus, an object is needed which could be vibrated to produce sound.

Characteristics of sound wave:

Following are the main characteristics of sound wave:

• Wavelength
• Amplitude
• Time period
• Frequency
• Speed

To discuss the characteristics of wave, a graphical representation of sound wave is considered.

The peak of a wave is called compression or crest. The valley of a wave is called rarefaction or trough.