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Work and Energy
| Question | Answer |
|---|---|
| A device with moving parts that work together to accomplish a task. | machine |
| forces, energy, or power supplied to make a machine accomplish a task. | input |
| forces, energy, or power provided by the machine. | output |
| an unpowered mechanical device that accomplishes a task with only one movement. | simple machine |
| a stiff structure that rotates around a fixed point called a fulcrum. | lever |
| a rotating wheel with teeth that transfers motion and forces to other gears or objects | gear |
| the ratio of output force to input force for a simple machine | mechanical advantage |
| a form of energy that comes form force applied over distance | work |
| W = Fd | Equation for work |
| a quantity that describes the ability of an object to change or cause changes | energy |
| a unit of energy. | joule (J) |
| a small group of objects, effects, and variables that are related | system |
| energy due to position; stored energy | potential |
| energy of motion | kinetic |
| a form of energy that comes from force applied over distance | work |
| a form of energy that is related to motion or position | mechanical energy |
| a form of potential energy that is store in molecules | chemical energy |
| a form of energy that is store in the nuclei of atoms | nuclear energy |
| a form of energy that is represented by the electromagnetic spectrum | radiant energy |
| energy can never be created or destroyed only transformed into another form | law of conservation of energy |
Created by:
mdavis1
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