They don't "possess" any energy, in the sense that they don't have any significant amount of energy stored. They need to be plugged in to work. When they do, they use electrical energy.
Electricity is a major form of energy. Also chemical energy which all fossil fuels posess.
Matter, by definition, must posess both mass and volume. Energy is in the form of waves, which posess neither mass nor volume.
heat energy
Because carbon posess tetravalency
Starting energy form: Chemical energy End energy: Electrical energy--> heat,sound,light energy
No, since the person inside the lift is usually fixed to one spot and stationary objects do not posess kinetic energy.
posess
A computer uses electrical energy
the term "lost" means that it's completely disappear, if so, no. It still turn into another type of energy (which i don't know) due to newton law no.2, an object can posess energy through height.
The energy used to power a computer is Electrical Energy.
YES
A computer gets it's energy from electricity.