acceleration - How quickly an object speeds up, slows down or changes direction., critical velocity - The speed needed at the top of a loop for a car to make it through the loop without falling off the track, force - Any push or pull., friction - A force caused by a rubbing motion between two objects., g-force - Short for gravitational force. The force exerted on an object by Earth's gravity., gravitational constant - The acceleration caused by Earth's gravity. Is equal to 9.81 m/sec2., gravity - A force that draws any two objects toward one another., kinetic energy - The energy of an object in motion, which is directly related to its velocity and its mass., potential energy - The energy stored by an object ready to be used, velocity - A combination of speed and the direction in which an object travels., Law of Conservation of Energy - Energy is never created or destroyed, it just transforms into other forms of energy., Thermal Energy - A product of most other forms of energy. A product of friction., Electrical Energy - The energy of moving electrons., Radiant Energy - Light energy. Electromagnetic radiation from light bulbs or the sun., Chemical Energy - Energy stored in chemical bonds; transferred during chemical reactions.,

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