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Q: What law says energy cannot be converted without the loss of usable energy?
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Were is wind energy stored and converted into usable energy?

The wind energy cannot be stored.


What does it mean to use up energy?

Using up energy is basically converting energy from its original form to such a form in which it becomes useless or it is converted to less usable form. FOR EXAMPLE - When you use electricity to light a bulb. electrical energy is converted to heat energy which is in turn converted to light energy. Now you cannot get back heat energy from that light and hence you cannot get back electrical energy. So here electrical energy is converted to such a form in which is cannot be used further. It is said to be used


What does it mean to use energy?

Using up energy is basically converting energy from its original form to such a form in which it becomes useless or it is converted to less usable form. FOR EXAMPLE - When you use electricity to light a bulb. electrical energy is converted to heat energy which is in turn converted to light energy. Now you cannot get back heat energy from that light and hence you cannot get back electrical energy. So here electrical energy is converted to such a form in which is cannot be used further. It is said to be used


How is coal converted into usable energy?

it is formed by being burned which causes heat, which can also be converted into motion energy.


Is efficiency the same thing as how much energy gets converted to electricity?

no, its how much energy gets converted to usable work.


Is usable energy lost each time energy is converted to another form of energy?

Yes.


What energy is being converted when the sun gives energy to solar panels?

Anywhere from 10-23% of sunlight is converted into "usable" electricity.


What is a solar plant?

it is a place where energy from the sun is converted to energy that is usable for powering almost everything


If energy cannot be created nor destroyed why does its value sometimes decrease or increase?

Energy can be transferred from one place to another, or one type of energy can be converted into another kind.Also, USABLE energy will decrease over time; while the unusable energy increases.


Describe how the energy changes from a usable form to a less usable form in a building's heating system?

While producing heat energy is precisely the purpose of a heating system, once any kind of energy is converted into heat, it can no longer be converted back to other forms of energy - at least, not all of it.


How is biomass converted into usable energy?

Oils from seed-bearing plants are processed to produce a diesel fuel.


An important reaction through which the sun's energy is converted to a usable energy source for plants and animals is?

That's photosynthesis. (There's a clue in the "categories".)