Chemical energy.
It does not product energy but uses energy via the battery.
Probably it uses a battery to provide it with energy.
The type of energy a computer uses is electricty.
it uses sound energy
The pencil uses Thermal energy
it uses kiknetic energy
chemical energy
That depends on the type of calculator you are referring to. An abacus uses mechanical energy An electronic calculator uses electrical energy A brain doing mental arithmetic uses chemical energy
What comes out is electrical energy, while what is in the battery is chemical energy.
The car uses a DC curent battery due to that DC is the only current that can be stored and what a car normally uses is a 12 volt battery
A battery stores energy in the chemical form. When you're ready to use the energy, the battery delivers it to you in the electrical form.
Anyone can use wind energy. But people can use it for multiple purposes, like charging a battery to running your homes electricity.