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Chapter 9
Energy and Energy Resources
Term | Definition |
---|---|
Energy | The capacity to do work. |
Kinetic energy | The energy of an object that is due to the object's motion. |
Potential energy | The energy an object has because of the position, shape, or condition of the object. |
Mechanical energy | The amount of work an object can do because of the object's kinetic and potential energies. |
Thermal energy | All of the kinetic energy due to random motion of the particles that make up an object. |
Chemical energy | The energy of a compound that changes as its atoms are rearranged. |
Electrical energy | The energy of moving electrons. |
Energy conversion | A change from one form of energy to another. |
Friction | A force that opposes motion between two surfaces that are touching. |
Law of conservation of energy | Energy cannot be created or destroyed. It simply transfers from one form to another. |