? energy is the most concentrated form of energy.
energy is energy of position.

A falling raindrop has?
potential energy.

When kinetic energy changes into ? potential energy, it undergoes an energy
An ?
is a particle that is even smaller than an atom.

? and velocity are used to calculate kinetic energy.

When you rub your hands together you convert mechanical energy into ?
energy.

First answer marked as brainiest which is the correct equation describing the first law of thermodynamics? a) when the internal energy of a system changes, it equals the amount of heat added plus the work done. b) when work is done by the piston, it is equal to the heat added plus the change in internal energy of the system. c) when heat is added to the system, it is equal to the amount of work done by the piston plus the change in internal energy of the system.