Energy stored in a moving object is called kinetic energy. As an object is raised above ground its gravitational potential energy increases. When a force moves an object work is done.
When work is done on an object, energy is transferred. The ratePer unit time or 鈥榩er second鈥. For example, if 2,000 J are transferred over a period of 10 s, then the rate of transfer is 200 J/s or 200 W. This value is the power rating. at which this energy is transferred is called powerThe energy transferred each second, measured in watts (W). Power = work done 梅 time taken.. So the more powerful a device is, the more energy it will transfer each second.
Calculating power
The equation used to calculate the power is:
\(power = \frac{work~done}{time}\)
\(P = \frac{W}{t}\)
This is when:
power (P) is measured in watts (W)
work done (W) is measured in joules (J)
time (t) is measured in seconds (s)
One watt is equal to one joule per second (J/s). This means that for every extra joule that is transferred per second, the power increases by one watt.