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Sound travels spherically from where it was made. If energy is to be conserved a sphere of an earlier point will have a higher flux density than one from a later point.
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Why does the energy of a sound decrease over time?
Sound travels spherically from where it was made. If energy is to be conserved a sphere of an earlier point will have a higher flux density than one from a later point.
Why does a sound wave decrease over time?
A sound wave decreases over time because of natural dissipation, which refers to the energy lost as the sound propagates through a medium like air. As the wave travels, some of its energy is converted into other forms (like heat) and is no longer available to keep the wave going, resulting in a decrease in amplitude and intensity over distance.
Can there ever be a complete and absolute heat death of the Universe?
Yes, available, or usuable, energy should decrease gradually over time - until the time comes when there is no more available energy.Yes, available, or usuable, energy should decrease gradually over time - until the time comes when there is no more available energy.Yes, available, or usuable, energy should decrease gradually over time - until the time comes when there is no more available energy.Yes, available, or usuable, energy should decrease gradually over time - until the time comes when there is no more available energy.
Why dies the energy of a sound wave decrease over time?
For one, as the sound spreads over a larger area, the intensity decreases. This is similar to a light becoming dimmer, the farther away you get away from the light source - the light, too, spreads over a larger area, so in both cases, less energy is available per unit area. On the other hand, part of any sound (or light, or other wave) will be absorbed - converted to other types of energy.
How does friction affect the mechanical energy in a physical system?
Friction typically converts some mechanical energy into heat, sound, or deformation within a physical system. This results in a loss of mechanical energy, leading to a decrease in the total mechanical energy of the system over time.
Why damping causw decrease in the amplitude of a vibration?
Damping in a vibrating system causes a decrease in amplitude because it dissipates energy from the system in the form of heat or sound. As energy is lost to damping forces such as friction or air resistance, the system's natural frequency is reduced, leading to smaller oscillations over time.
Why does sound waves die out after traveling for a long time?
A sound wave has a fixed amount of energy. Because sound waves usually move outward in a circular pattern of increasing size, that energy gets stretched out over a larger and larger area, and the energy eventually becomes so thin as to be undetectable, or too quiet to be heard.
Reflected sound is fainter than the original sound why?
Reflected sound is fainter than the original sound because it loses energy each time it bounces off a surface, causing it to decrease in intensity. This energy loss is due to factors such as absorption and dispersion of sound waves as they reflect off surfaces.
Explain where and why the energy is the greatest when a rock is dropped into a large puddle?
The energy would be greatest at the moment of impact when the rock hits the surface of the puddle. This is because the kinetic energy of the falling rock is converted into potential energy as it is lifted higher above the puddle, and then back into kinetic energy as it accelerates towards the surface. The energy is also dissipated in the form of sound and water splashing, resulting in a decrease in energy after the initial impact.
Why does the amount of useful energy decrease when energy changes from one form to another?
Conversions of energy forms are lossy. For example, when mechanical energy is converted to electrical energy (such as happens in an electric generator), there is friction which leads to the escape of heat and sound energy. While the total amount of energy in all forms remains constant, the heat and sound energy are next to impossible to recapture, so this is considered a loss of useful energy.
Do the size of kidneys decrease with time?
The size of kidneys don't usually decrease in size over time.
What caused tuning fork to stop vibrating?
A tuning fork stops vibrating primarily due to the dissipation of energy as sound waves and thermal energy. When the fork is struck, it generates vibrations that create sound, but over time, friction with air and internal damping within the metal absorb this energy, leading to a gradual decrease in amplitude. Additionally, contact with surfaces or other materials can further dampen the vibrations, contributing to its eventual stop.
