Question

So now on to energy and power! So how are work, energy and power connected here? Also when you get a bill form the electric company, are you paying for energy or power? Why does this matter?

Answer 1

Solution:

A)

Work: refers to an activity involving a force and movement in the directon of the force.

Energy: is the capacity for doing work.

Power: is a measure of how quickly work can be done. P = E/t.

B)

The bill from the electric company states the Power [in kWh] we consumer.

C)

This matters beacuse, If we are using one kW of power, a kW of energy will last one hour.

The unit of power is the Watt = 1 Joule/ 1 second.

One common unit of energy is the kilowatt-hour (kWh).

I hope you understood the problem, If yes rate me!! or else comment for a better solution.