A wave is a periodic disturbance. Wave in physics carries different kinds of energies from one place to other. Broadly waves are of two types by the name mechanical and non mechanical waves.Mechanical waves needs a medium for prorogation and non mechanical waves don't need any medium for prorogation. They can travel through vaccum.
For mechanical wave propagation the medium shall have elastic nature and shall contain inertial property.In the case of wave propagation no particle of medium displaces permanently from their mean position and they just vibrate about their mean position.During that process they transfer energy to their next particles and this process continues until the destination is reached.
These patterns of transfer of energy which move without the actual physical transfer or flow of matter as a whole, are called waves.In a wave, information and energy, in the form of signals, propagate from one point to another but no material object makes the journey.
The other kind of waves are matter waves.Matter waves are associated with moving electrons, protons, neutrons and other fundamental particles, and even atoms and molecules.
Wave propagation of sound waves in air is done in the following way: As the wave passes through air, it compresses or expands a small region of air. This causes a change in the density of that region, δρ, this change induces a change in pressure, δp, in that region. Pressure is force per unit area, so there is a restoring force proportional to the disturbance. If a region is compressed, the molecules in that region are packed together, and they tend to move out to the adjoining region, thereby increasing the density or creating compression in the adjoining region.
Consequently, the air in the first region undergoes rarefaction. If a region is comparatively rarefied the surrounding air will rush in making the rarefaction move to the adjoining region. Thus, the compression or rarefaction moves from one region to another, making the propagation of a disturbance possible in air.
SHM related topics
Resonance
Damped simple harmonic motion
Simple Pendulum
What is periodic and Oscillatory Motion is ? Displacement in Oscillatory motion
Simple Harmonic Motion
Velocity and acceleration of SHM
Energy of particle in SHM
For mechanical wave propagation the medium shall have elastic nature and shall contain inertial property.In the case of wave propagation no particle of medium displaces permanently from their mean position and they just vibrate about their mean position.During that process they transfer energy to their next particles and this process continues until the destination is reached.
These patterns of transfer of energy which move without the actual physical transfer or flow of matter as a whole, are called waves.In a wave, information and energy, in the form of signals, propagate from one point to another but no material object makes the journey.
The other kind of waves are matter waves.Matter waves are associated with moving electrons, protons, neutrons and other fundamental particles, and even atoms and molecules.
Wave propagation of sound waves in air is done in the following way: As the wave passes through air, it compresses or expands a small region of air. This causes a change in the density of that region, δρ, this change induces a change in pressure, δp, in that region. Pressure is force per unit area, so there is a restoring force proportional to the disturbance. If a region is compressed, the molecules in that region are packed together, and they tend to move out to the adjoining region, thereby increasing the density or creating compression in the adjoining region.
Consequently, the air in the first region undergoes rarefaction. If a region is comparatively rarefied the surrounding air will rush in making the rarefaction move to the adjoining region. Thus, the compression or rarefaction moves from one region to another, making the propagation of a disturbance possible in air.
SHM related topics
Resonance
Damped simple harmonic motion
Simple Pendulum
What is periodic and Oscillatory Motion is ? Displacement in Oscillatory motion
Simple Harmonic Motion
Velocity and acceleration of SHM
Energy of particle in SHM
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