Search results
Results from the WOW.Com Content Network
Power is the rate at which work is done. It is the work/time ratio. Mathematically, it is computed using the following equation. Power = Work / time. or. P = W / t. The standard metric unit of power is the Watt. As is implied by the equation for power, a unit of power is equivalent to a unit of work divided by a unit of time.
We can define power as the rate of doing work, it is the work done in unit time. The SI unit of power is Watt (W) which is joules per second (J/s). Sometimes the power of motor vehicles and other machines is given in terms of Horsepower (hp), which is approximately equal to 745.7 watts.
Power is the amount of energy transferred or converted per unit time. In the International System of Units, the unit of power is the watt, equal to one joule per second. Power is a scalar quantity.
In this section, students learn how work determines changes in kinetic energy and that power is the rate at which work is done. Review understanding of mass, velocity, and acceleration due to gravity. Define the general definitions of the words potential kinetic. Remind students of the equation .
Power is the rate at which work is done, or in equation form, for the average power \ (P\) for work \ (W\) done over a time \ (t\), \ (P = W/t\). The SI unit for power is the watt (W), where \ (1 \space W ….
Explore the concept of power in physics through an example of two weightlifters, one who lifts faster than the other, to see that power measures the rate at which work is done. Finally, learn how to calculate both average and instantaneous power.
Power is the rate at which work is done or the rate at which energy is transfered from one place to another or transformed from one type to another. The symbol for power is an italicized, uppercase P. P =. ∆ W.
Learn about the concept of power in physics, including how to calculate average and instantaneous power.
Power is the rate at which work is done or energy is transferred in a unit of time. Power is increased if work is done faster or energy is transferred in less time. Calculating Power. The equation for power is P = W/t. P stands for power (in watts) W stands for the amount of work done (in Joules) or energy expended (in Joules)
Concepts of work, kinetic energy and potential energy are discussed; these concepts are combined with the work-energy theorem to provide a convenient means of analyzing an object or system of objects moving between an initial and final state.