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Questions
Differentiate between work and power.
Give two differences between work and power.
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Solution
| Work | Power | |
| 1. | The work done by a force is equal to the product of the force and the displacement in the direction of the force. | The power of a source is the rate of which it does work by it. |
| 2. | The work done does not depend on time. | Power spent depends on the time in which work is done. |
| 3. | S.I unit of work is the joule (J). | S.I unit of power is watt (W) |
| 4. | W = F × S | P = `w/t` |
| 5. | 1J = 1N × 1m | 1 Watt = `(1J)/(1Sec)` |
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