Energy has many different forms: energy is the energy of motion, for every moving object and living thing; energy is a stored energy, ready to be used and converted into other types of energies.

Kinetic and potential energy are both proportional to the of the object under study. If you take a -kg ball and place at the top of an inclined plane, at 4 m from the ground, it will have a energy of 392 J. While it slips down the plane, its energy increases, its energy decreases, and its energy remains constant. If we neglect other factors such as friction, we can assume that the ball, once arrived at the bottom of the plane, it will have a velocity of m/s.

The choices for the blanks are: 0, 10, 86, 392, directly, height, inversely, kinetic, mass, potential, total and velocity.