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Q: Why do we need to change the way we use energy?
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What is life's need for energy?

Living beings are, in a way, similar to engines, and they need fuel - for example, to move around, to grow, etc. Without energy, no change is possible. A lifeless statue doesn't need energy; anything that moves, grows, or undergoes any other type of change, does.


What resource does not use the sun's energy in any way?

geothermal doesnt use the suns energy in any way.


How can you use wind energy?

Windmills are a good way to use wind energy


Is experiencing change an emotional need of all people?

If you are happy with the way things are, then you will not feel a need for change. If you are unhappy with the way things are, then you will feel a need for change.


Why does every chemical or physical change in matter include a change in energy?

because the change either uses up enrgys, or the change absorbs energy in some way


What is the best way to use the gears in a manual car?

You need to be taught to do this properly and you need a lot of practice. Basically you change up to go faster, but sometimes you change down for acceleration or for safety.


Why do birds need a lot of energy?

Birds have higher body temperatures then most mammals and because of this use a lot of energy. Maintaining body temperatures and flight are to things that birds do that require energy.


How do you use thermal energy daily?

All energy sources come in two ways. One way is by something using the energy. The other way is by something producing the energy. We use thermal energy when we heat our homes with heaters. Microwaves and ovens use thermal energy. So do toasters.


Is energy flow involved in a change in state?

Yes, energy is simply a way for things to change, therefore it is needed. Without energy flow (where energy is either gone or constant) a substance will remain the same.


How can you converts acoustic energy to electrical energy?

The best way is to use a microphone.


How do you think the potential energy will change if you change the length of the ramp?

Gravitational potential energy depends on the difference of height. If the length of the ramp is changed, but the endpoints have the same difference in height, there won't be any change in gravitational potential energy. If, on the other hand, the change is done in a way that the height does change, then gravitational potential energy will also change.


How much energy does Google use?

They use way to much energy, but what would we do with out google. :)