What the freak is energy?

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TallicaFan2005

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#1 TallicaFan2005
Member since 2005 • 4126 Posts
Another science question that I've never understood..

What the heck is energy? When something says like when sunlight hits water it stores energy and then releases energy into the atmosphere that fuels storms....

Can anyone explain exactly what this energy is? What does it do? You obviously can't see energy....

How do things store this energy stuff?

I remember learning about kinetic motion or whatever.....How does that work? The word energy is thrown around a lot there and I still don't undestand it :(
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ranger_waha

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#2 ranger_waha
Member since 2005 • 3187 Posts
Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.
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LoG-Sacrament

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#3 LoG-Sacrament
Member since 2006 • 20397 Posts
e=mc^2. thats the most simplified definition there is.
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LoG-Sacrament

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#4 LoG-Sacrament
Member since 2006 • 20397 Posts
Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.ranger_waha
nope, speed gives momentum. acceleration gives force.
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TERMINAT0R1

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#5 TERMINAT0R1
Member since 2004 • 3267 Posts
Energy basically is heat. 
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Aura_Twilight

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#6 Aura_Twilight
Member since 2005 • 3212 Posts
Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.ranger_waha
To add to that no energy is lost or created through the conservation of energy. If a particle hits another particle the energy is transfered and none is lost.
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CrackThaRipper

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#7 CrackThaRipper
Member since 2007 • 603 Posts
Energy is what is needed to do your objectives throughout the day, the more you do, the more energy is used untill finally you burned out all energy. That is why we sleep, to regain energy. I hope thats answered your question, if you have more questions please msg me
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lord_mordain

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#8 lord_mordain
Member since 2003 • 3788 Posts
The simplest way to discover what energy is, is to stick you're tongue in an electrical socket.
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Aura_Twilight

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#9 Aura_Twilight
Member since 2005 • 3212 Posts
Energy basically is heat. TERMINAT0R1
Heat is energy but there are other types.
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TallicaFan2005

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#10 TallicaFan2005
Member since 2005 • 4126 Posts
The simplest way to discover what energy is, is to stick you're tongue in an electrical socket.lord_mordain
LOL....
[QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.Aura_Twilight
To add to that no energy is lost or created through the conservation of energy. If a particle hits another particle the energy is transfered and none is lost.

What if an anti-proton annihilates with a proton or something????
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lord_mordain

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#11 lord_mordain
Member since 2003 • 3788 Posts
Honest answer now?

Everything is energy since absolute zero does not exist.
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194197844077667059316682358889

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#12 194197844077667059316682358889
Member since 2003 • 49173 Posts
Energy is the ability to do work and can exist as kinetic energy (which is currently performing work) or potential energy (which is not performing work but may be released). For instance, if I hold a rock above the ground, it has gravitational potential energy, because the rock is not in its lowest available energy state. If I let it go, the potential becomes kinetic as the rock falls to the ground, where it is then in its lowest available energy state. If I want to lift it again, I have to expend energy (do work) against the gravitational field it is in to apply kinetic energy, which becomes potential energy for the rock again.
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194197844077667059316682358889

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#13 194197844077667059316682358889
Member since 2003 • 49173 Posts
[QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.LoG-Sacrament
nope, speed gives momentum. acceleration gives force.

Nore precisely, force gives acceleration :)
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194197844077667059316682358889

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#14 194197844077667059316682358889
Member since 2003 • 49173 Posts
What if an anti-proton annihilates with a proton or something???? TallicaFan2005
Particle annihilation turns the participating particles into high energy gamma rays (photons).
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lord_mordain

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#15 lord_mordain
Member since 2003 • 3788 Posts
Energy is the ability to do work and can exist as kinetic energy (which is currently performing work) or potential energy (which is not performing work but may be released). For instance, if I hold a rock above the ground, it has gravitational potential energy, because the rock is not in its lowest available energy state. If I let it go, the potential becomes kinetic as the rock falls to the ground, where it is then in its lowest available energy state. If I want to lift it again, I have to expend energy (do work) against the gravitational field it is in to apply kinetic energy, which becomes potential energy for the rock again.xaos


Yeah yeah, get all complicated on the kid.

But you know in it's simplest answer, I was right.
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194197844077667059316682358889

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#16 194197844077667059316682358889
Member since 2003 • 49173 Posts
[QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.Aura_Twilight
To add to that no energy is lost or created through the conservation of energy. If a particle hits another particle the energy is transfered and none is lost.

Sorry to be all megaposty in this thread but its so rare that I get to use my physics education :) That is true only if the collision is a perfect inelastic collision. Otherwise, some energy is expended in deforming the colliding objects.
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LoG-Sacrament

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#17 LoG-Sacrament
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[QUOTE="LoG-Sacrament"][QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.xaos
nope, speed gives momentum. acceleration gives force.

Nore precisely, force gives acceleration :)

which came first? the chicken or the egg?
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#18 Aura_Twilight
Member since 2005 • 3212 Posts
[QUOTE="lord_mordain"]The simplest way to discover what energy is, is to stick you're tongue in an electrical socket.TallicaFan2005
LOL....
[QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.Aura_Twilight
To add to that no energy is lost or created through the conservation of energy. If a particle hits another particle the energy is transfered and none is lost.

What if an anti-proton annihilates with a proton or something????

We're talking about kinetic energy here though.
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194197844077667059316682358889

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#19 194197844077667059316682358889
Member since 2003 • 49173 Posts
[QUOTE="xaos"][QUOTE="LoG-Sacrament"][QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.LoG-Sacrament
nope, speed gives momentum. acceleration gives force.

Nore precisely, force gives acceleration :)

which came first? the chicken or the egg?

I've never heard of an acceleration that gives rise to force, which is why I made my gentle addendum ;)
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#20 -Jane-
Member since 2007 • 69 Posts
[QUOTE="xaos"][QUOTE="LoG-Sacrament"][QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.LoG-Sacrament
nope, speed gives momentum. acceleration gives force.

Nore precisely, force gives acceleration :)

which came first? the chicken or the egg?

...The egg.
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LoG-Sacrament

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#21 LoG-Sacrament
Member since 2006 • 20397 Posts
[QUOTE="LoG-Sacrament"][QUOTE="xaos"][QUOTE="LoG-Sacrament"][QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.-Jane-
nope, speed gives momentum. acceleration gives force.

Nore precisely, force gives acceleration :)

which came first? the chicken or the egg?

...The egg.

but where did the egg come from? a chicken would have had to lay it.
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TallicaFan2005

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#22 TallicaFan2005
Member since 2005 • 4126 Posts
[QUOTE="-Jane-"][QUOTE="LoG-Sacrament"][QUOTE="xaos"][QUOTE="LoG-Sacrament"][QUOTE="ranger_waha"]Energy is hard to explain, but wikipedia is your friend. Kinetic energy is...power, or energy produsced by motion. If I punch you in the face, your face gets the energy transfered from my fist. That's what gives the punch force, is it's speed.LoG-Sacrament
nope, speed gives momentum. acceleration gives force.

Nore precisely, force gives acceleration :)

which came first? the chicken or the egg?

...The egg.

but where did the egg come from? a chicken would have had to lay it.

Nope a faulty dinosaur did.
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#23 yoshi-lnex
Member since 2007 • 5442 Posts

By definition it's the ability to work........

E = the negative integral of force or force over a distance....