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Chemical energy.
The battery uses chemical energy, to produce electrical energy, to produce heat energy in the bulb, which releases electro-magnetic energy. And get to know more details of flashlight energy here: http://forum.fonarevka.ru/showthread.php?t=7498
A flashlight is given off light and heat energy once turn on.
The theory of conservatio of energy
A flashlight can transform electric energy to light energy and heat energy.
Flashlight produce light energy and heat after turning on.
Chemical energy.
The battery uses chemical energy, to produce electrical energy, to produce heat energy in the bulb, which releases electro-magnetic energy. And get to know more details of flashlight energy here: http://forum.fonarevka.ru/showthread.php?t=7498
A flashlight is given off light and heat energy once turn on.
A flashlight can produce light and heat if its switch is on.
The theory of conservatio of energy
A flashlight can transform electric energy to light energy and heat energy.
The battery uses chemical energy to produce electrical energy,
Mechanical energy
Battery electric energy is converted to light energy of flashlight.
Friction can produce energy in the form of heat
It is designed to transport you around, not produce energy.