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What is propagation of sound class 7?
Propagation of sound Sound is produced by vibrating bodies. Sound propagates in air or gases through compressions and rarefactions and it propagates in all directions. When a sound wave travels through a medium, say air, compression, and rarefaction are produced.
What is propagation of sound Class 8?
Sound needs a medium to propagate The traveling of sound is called propagation of sound. Sound cannot propagate in the absence of a medium. The place where there is no air or air is removed, is called vacuum. Sound does not propagate (travels) through vacuum.
What is propagation of sound class 9?
The travelling of sound is called propagation of sound. Sound is propagated by the to and fro motion of particles of the medium. When an object vibrates, the particles around the medium vibrate. The particle in contact with the vibrating object is first displaced from its equilibrium position.
What do you mean by propagation in physics?
In physics, propagation is wave movement. Definitions of propagation. the act of producing offspring or multiplying by such production. synonyms: generation, multiplication.
How do waves propagate?
A wave can be thought of as a disturbance or oscillation that travels through space-time, accompanied by a transfer of energy. The direction a wave propagates is perpendicular to the direction it oscillates for transverse waves. A wave does not move mass in the direction of propagation; it transfers energy.
What is needed for propagation of sound?
A medium is essential for the propagation of sound. Sound cannot travel through a vacuum because there are no molecules that can be compressed and expanded in space.
What is required for propagation of sound?
Sound needs a material medium for their propagation like solid, liquid or gas to travel because the molecules of solid, liquid and gases carry sound waves from one point to another. Sound cannot progress through the vacuum because the vacuum has no molecules which can vibrate and carry the sound waves.
What is a meaning of propagation?
Definition of propagation : the act or action of propagating: such as. a : increase (as of a kind of organism) in numbers. b : the spreading of something (such as a belief) abroad or into new regions.
What is propagation mean in science?
(physics) The act or process of propagating, especially the process by which a disturbance, such as the motion of electromagnetic or sound waves, is transmitted through a medium such as air or water. Propagation is the reproduction or spreading of something.
What is propagated in wave motion?
wave motion, propagation of disturbances—that is, deviations from a state of rest or equilibrium—from place to place in a regular and organized way. Most familiar are surface waves on water, but both sound and light travel as wavelike disturbances, and the motion of all subatomic particles exhibits wavelike properties.