What is the definition of kinetic energy and potentail energy?

Potential energy definition. The energy an object has because of its position, rather than its motion. An object held in a person's hand has potential energy, which turns to kinetic energy — the energy of motion — when the person lets it go, and it drops to the ground.

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Kinetic energy is energy that a body possesses by virtue of being in motion.Or in other words, the energy you use when you are moving around. 
Potential energy is energy that a body possesses by virtue of being in place. Or in other words when your body is not in motion. 

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