The chemical energy in the battery is converted into electrical energy to power up the phone.
The chemical energy in the battery is converted into electrical energy to power up the phone.
The conversion is from chemical energy to electricity to light energy.
The conversion is from chemical energy to electricity to light energy.
The energy conversion in a battery powered flashlight comes from the battery itself. Batteries use metal electrodes set into a chemical paste to store electricity; as the electrode oxidizes it releases electrons.
The conversion is Potential to Kinetic.
Chemical energy and heat energy
Any battery cell that's being used.
1 mW
Potential to kinetic to electric energy conversion takes place when a rubber powered aeroplane flies.
Elastic potential energy->gravitational potential energy->kinetic energy
the energy transfer is from chemical to electrical to radiant
Think about a battery-powered motor. (Granted, the energy is originally chemical potential, but it is transferred to electrical potential when it comes out of the battery.)