**Terms & Definitions - Module 7**

- Energy of a body because of its position (e.g., in a gravitational field)
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Enables a system to do work.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Energy of a body that is moving, disregarding any energy due to position.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Work done per unit time.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Force multplied by distance moved by the object upon which the force is acting.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Work done on an object is equal to the change in kinetic energy of the object.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- A device that increases, decreases, or changes the direction of a force.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Energy can not be created or destroyed by any physical entity.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Useful work output divided by total energy (or work) input into a machine.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

- Work output by a machine can not exceed the work input into the machine.
- Work
- Power
- Energy
- Potential energy
- Kinetic energy
- Work-energy theorem
- Conservation of energy
- Machine
- Conservation of energy for machines
- Efficiency

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