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Unit 5 Vocab
Important vocabulary to know from Unit 5
| Term | Definition |
|---|---|
| energy | the ability to do work |
| work | a way to give something energy; done when a force is exerted over a certain distance |
| power | how much work is done in a certain amount of time; how quickly work is done |
| joules | the unit for work and energy |
| watts | the unit for power; stands for joules of energy per second |
| chemical energy | energy occurring from a chemical change, such as breaking or forming chemical bonds |
| thermal energy | energy from moving molecules (we sense it as "heat") |
| nuclear energy | energy from splitting or fusing an atom |
| electromagnetic energy | energy stored in electromagnetic waves (AKA light or radiant energy) |
| sound energy | mechanical waves of energy due to noise |
| electrical energy | energy of moving electrons |
| mechanical energy | energy that deals with motion and position of an object; has two subtypes |
| kinetic energy | energy of motion |
| (gravitational) potential energy | energy of position (height) |
| Law of conservation of energy | Energy can NEVER be created or destroyed, just transformed from one form to another |
| energy transfer (or energy transformation) | when one form of energy changes into another form of energy |
| reference line | the height that is considered "0"; all other height measured from this point. |
Created by:
davenportscience
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