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Unit 4- Physics
Unit Test
Term | Definition |
---|---|
Mechanical energy | The energy possessed by an object due to its motion and position |
Watt | The standard unit of measurement for power |
Joule | The standard unit of measurement for energy and work |
Simple Machine | A device that helps people do work by changing the way work is done |
Chemical potential energy | The chemical bonds in the food store energy that is released when we digest it |
1st class lever | Fulcrum in the middle; example: seesaw |
2nd class lever | Load in the middle; example: wheelbarrow |
3rd class lever | Effort in the middle; example: arm muscle |
Incline plane | Example: ramp |
Pulley | Example: flag pole |
Screw | Example: bottle cap |
Wedge | Example: doorstop |
Wheel and axle | Example: car wheels |