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Column A:
1. Work: d. Using a force to move an object.
2. Power: f. The rate at which work is done.
3. Joule: c. The metric unit of work and energy.
4. Watt: b. The metric unit of power.
5. Machine: e. Any device that makes work easier.
6. Mechanical Advantage: h. The number of times a machine increases the input force.
7. Efficiency: g. The ratio of output work to input work.
8. Energy: a. The ability to do work.