Work, Power, and Force
This week in Physics, we learned about work, power, and force.
Work is equal to any change in energy.  It can be found by the equation  W = f (force) • d (distance), and is measured in Joules (J).
Work is related to power because power is the rate at which work is being done.  Power = work / time and is measured in Watts (W).
We also learned about energy.  In an isolated system, energy can not be created nor destroyed, it just changes form.  There are two forms of energy; potential (energy of position) PEg = mass • height • gravity, and kinetic (energy of motion) KE = 1/2 mass • velocity^2.

Below we have a dog.  This dog does work while playing fetch because it exerts a certain force for a certain distance on the stick being used.
PC: Noʻe