Answer:
Potential energy: Energy contained in a system which can later be turned into kinetic energy. An example is the gravitational potential energy stored upon climbing a hill. The tendency you feel to speed up on the way down is due to the conversion of this potential energy into...
Kinetic energy: Energy of a moving system. These can be translational (moving positions), rotational (spinning), vibrational, and other modes. An example of kinetic energy is that which is contained in a moving truck
Potential energy is energy stored in an object. Stretching a rubber band stores energy in that rubber band so that, when released, it flies off, changing its stored energy into kinetic energy -- the energy used for moving! Picking up a brick stores energy in the brick that becomes kinetic when you drop it, and the chemical bonds in a log are stored energy that is released when you burn the log, creating warmth and light (which travel using kinetic energy).