If nothing truly disappears, but rather changes form, what happens to the energy in a battery once it has been exhausted?
by 
Mrs.Dufresne rediscovers Alana Davis
ANSWERS: 7
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The potential energy of the battery is transformed into kinetic energy and is dissapated by moving parts such as a walkman tape cog, or is turned into light energy and released into the atmosphere (camera flash). It is disappated in various ways depending on the gadget.
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Typically, it will have been dispersed into the environment as various forms of energy.
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It'll all been converted into the energy which the battery was intended for.. In a torch, it's been converted into light and a bit of wasted thermal energy... It's the law of energy conservation: Energy cannot be created or destroyed, only converted from one form to another. x
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The energy has been changed to another type, depending on what you used the battery for. iPod, converted to soundwaves, Remote control car, converted to kinetic energy ( movement ) etc.
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The simplest answer is that it changes into the actions of whatever device(s) the battery was powering, such as kinetic energy (motion), electromagnetic radiation (light), or heat. Heat will always be given off anyway, but sometimes the primary function is heat.
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The simplest answer is that it changes into the actions of whatever device(s) the battery was powering, such as kinetic energy (motion), electromagnetic radiation (light), or heat. Heat will always be given off anyway, but sometimes the primary function is heat.
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That depends on what kind of device the battery is powering. If the battery was powering say... A lightbulb, then the energy from the battery is converted into light and heat, which then dissapates into the surrounding space.
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