How To Calculate Watts

Hi, my name is Charles and I'm one of the max teachers from the Maxim workshop. I'm just now going to teach you how to do some math. In this video, I'm going to show you how to calculate watts.

Now, watts is a measurement of power so mainly in Physics, you'll come across the term of power and there are 3 different basic ways of how you can calculate it. Now, power is denoted by "P" and in kinematics, you have power calculated by the force multiplied by the velocity. Now in electricity within a circuit, you might come across power calculated by the voltage multiplied by the current.

The last equation that you might use is when you find the energy and divide it by time. Now, the one I'm going to show you how to calculate is the first one. So just a set up of a small scenario where you might come across a calculation of power in kinematics is when you consider the motion of a car and its engine.

So I'll just draw a car for you. We have the engine there. Now just imagine if the engine of this car produces a force of possibly say of 150 Newtons.

And then the velocity of the car is equal to 5 meters per second. We want to now try to calculate the power associated with the motion of this car. So again, we have our Force here equalling 150 Newtons and then we have our speed or velocity which is 5 meters per second.

Now, all we have to do is multiply the two terms together. So the easiest way I would do this is to think about 5 times 15, which is going to be 75 and then you have this 150. So the ten there, which is marked by the zero.

You just multiply the 10 by the 75 and you get 750 even. And the units there are Watts, so it's just denoted by a "W" and that's how you calculate Watts for power.