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Sound can only travel through a medium (matter). Different materials allow sound to travel faster or slower.

However, as an experiment put an electron bell in a bell jar. You hear it ring.

Evacuate the bell jar of as much gas a possible ( a true vacuum is almost impossible to achieve in a Bell Jar), allow the bell to ring again. It will be much quieter, although the bell hammer will be vibrating at the same speed. By extrapolation, when all the gas is evacuated(vacuum) there will be no sound. So sound needs a medium to travel through.

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lenpollock

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3y ago

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What form of energy do muscles wind and running water show when they work?

All these things are moving. Energy of movement is kinetic energy.


What is the energy transfer diagram for a tv?

A TV converts electrical energy into light and sound energy. The energy transfer diagram would show the input of electrical energy from the power source, which is then converted into light energy by the screen and sound energy by the speakers. Some energy is lost as heat during the process.


What are the differences between Conservation law of energy and Conservation law of Mechanical energy in Physics?

The law of conservation of energy states that the total energy in the universe is a constant and will remain so for example ( x=y+z ). conservation of energy has to do with reducing the amount of energy used through reduced activity and/or increased efficiency in the performance of a particular task.


How can you draw an energy transfer diagram for winding up a clockwork car?

An energy transfer diagram for winding up a clockwork car would show the transfer of mechanical energy input to potential energy stored in the clockwork mechanism. As the key is turned, mechanical work is done to wind up the spring in the mechanism, storing potential energy. When released, the potential energy is converted back into kinetic energy as the car moves.


What is the difference between light waves and sound waves?

The differences between light and sound are as follows:Light can be considered to be made of waves as well as particles. Sound is only a wave. It does not show particle nature.Light waves are electromagnetic waves while sound waves are mechanical waves.Light waves are transverse while sound waves are longitudinal.Light waves can travel in vacuum. Sound waves require a material medium to travel, and hence, cannot travel in vacuum.The speed of light in a medium is constant. The velocity of sound waves can change.In sound waves, the particles of the medium actually oscillate. In a light wave, the electric and magnetic vectors oscillate.Light waves can be polarized, but sound waves cannot.Light waves travel much faster than sound waves. The speed of light is a physical constant. Its value is exactly 299,792,458 meters per second in vacuum. The speed of sound is 343 meters per second in dry air at 20°C.And finally, a simple one - you can see light while you can hear sound.

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All these things are moving. Energy of movement is kinetic energy.


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What are the differences between Conservation law of energy and Conservation law of Mechanical energy in Physics?

The law of conservation of energy states that the total energy in the universe is a constant and will remain so for example ( x=y+z ). conservation of energy has to do with reducing the amount of energy used through reduced activity and/or increased efficiency in the performance of a particular task.


How does a lamp show energy being changed from one form to another?

by eating


How can you draw an energy transfer diagram for winding up a clockwork car?

An energy transfer diagram for winding up a clockwork car would show the transfer of mechanical energy input to potential energy stored in the clockwork mechanism. As the key is turned, mechanical work is done to wind up the spring in the mechanism, storing potential energy. When released, the potential energy is converted back into kinetic energy as the car moves.


What is the difference between light waves and sound waves?

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What kinds of energy is given out by a firework?

Well, darling, when a firework goes off, it's throwing a party of energy types. We've got some thermal energy heating things up, light energy shining bright like a diamond, and sound energy making its presence known with a bang. So, next time you see a firework show, just remember it's a whole energy extravaganza up in the sky.