POWER

What is power? We all think power is like grown ups telling us what to do and lights and stuff like that.  We also think power is like Superman, Batman, and Spiderman.  Well not this kind of power.  Power is how quickly work is done.  Power, work, and force are all in the same category.  Force is measured in newtons, work is measured in joules, and power is just work divided by the time.  The way you write the formula for power is P=W/T.  To find how much power you used you have to know how much work you did and how long it took you to do it.  If you were lifting something that had a mass of 10 kilograms and you lifted it 10 meters in 5 seconds then you did a lot of power.  The faster you do work the more power you have done.  So if you lifted something that was 5 kilograms, 5 meters in front of you and you did it in 5 seconds then you didn't do that much work.