Difference Between Work and Power
The differences between work and power are mentioned in the table below:
|
Particulars |
Work |
Power |
|---|---|---|
|
Definition |
Work is defined as the transfer of energy by applying force to move a body. Work is defined as the product of force and displacement of a body along the direction of force. |
Power is expressed as the amount of energy transferred in unit time. |
|
Formula |
W = FS cosθ |
P = W/T |
|
SI unit |
SI unit of work is Joule (J). |
SI unit of power is Watt (W) or joule/second. |
|
Other units |
Other units are electron volt (eV), kWh, MWh, and GWh. |
Other units are horsepower (hp), kW, MW, and GW. |
|
Dimension |
[M L2 T-2] |
[M L2 T-3] |
|
Factors affecting |
|
|
|
Depends on time |
Work is not dependent on time. |
Power is dependent on time. |
Difference Between Work and Power
Work and Power are the two important terms in physics. To move a body, a certain amount of energy is required, this amount of energy is defined as work and the rate at which the energy is transferred is defined as Power. This two terms are quite similar however they have several differences. The differences between work and power are given below in this article.