What is energy?

Answer 1

it is what you eat...
that gets converted into stored stuff in your sexual organs and muscles...
so that you can have sex and enjoy

Answer 2

It comes in different forms -- heat (thermal), light (radiant), mechanical, electrical, chemical, and nuclear energy. Energy is in everything. We use energy to do everything we do, from making a jump shot to baking our favorite cookies to sending astronauts into space -- energy is there, making sure we have the power to do it all. There are two types of energy -- stored (potential) energy and working (kinetic) energy. For example, the food you eat contains chemical energy, and your body stores this energy until you release it when you work or play.

Taken from http://www.eia.doe.gov/kids/energyfacts/sources/whatsenergy.html

I already new all this but come on I'm not going to type all that....

Answer 3

In general, the concept of energy refers to "the potential for causing changes". The word is used in several different contexts. The scientific use has a precise, well-defined meaning, whilst the many non-scientific uses often do not. (see here.)

In physics, energy is the ability to do work and has many different forms (potential, kinetic, electromagnetic, etc.) No matter what its form, physical energy has the same units as work; a force applied through a distance. The SI unit of energy, the joule, equals one newton applied through one meter, for example.

Answer 4

Quite simply, the energy of an object is its capacity to move something else. so a rock on a cliff has potential energy, because it can fall and start moving. Gasoline has chemical energy, because we can use it to make things move...

So if you're wondering whether something has energy or not, ask whether, somehow, it could cause motion.

Answer 5

If you feel hungry energy is food if you feel thirsty water is your energy, If you feel lonely energy would be your friend and family.Don't say you don't want friend ,my dear friend ,you see Yahoo answers has so many friends,most of them are very kind,they will be your energy in your life,don't you think so?

Answer 6

energy is any sort of thing you know exists that isn't an idea but also isn't touchable. things like heat, light, sound are energy, but things in motion or not in motion also have it (potential/kinetic energy).

Answer 7

energy is all about having power.

Answer 8

The amout of physical quantity to do a paricular task.
In simple form I answered this

Answer 9

energy comes from ATP which comes from Mitochondria

Answer 10

E=mc^2

energy=mass x speed of light squared

Answer 11

Any source that pumps the spirit and warms the blood.