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Chapter 4 Vocabulary
Term | Definition |
---|---|
kinetic energy | energy a moving object has because of its motion; depends on the mass and speed of the object |
joule | SI unit of energy |
potential energy | stored energy an object has due to its position |
elastic potential energy | energy stored when an object is compressed or stretched |
chemical potential energy | energy stored in chemical bonds |
gravitational potential energy | energy stored by objects due to their position above Earth's surface; depends on the distance above Earth's surface and the object's mass |
mechanical energy | sum of the potential energy and kinetic energy in a system |
law of conservation of energy | states that energy can never be created or destroyed |