Potential vs. Kinetic Energy. Potential Energy—energy of position or condition. PE g = mgh = F g h Kinetic Energy—energy of motion. KE = ½ mv 2 Mechanical Energy—Total PE + KE ALWAYS REMAINS CONSTANT!!!. Where is PE the greatest? Least? Where is KE the greatest? Least?. Work vs. Power.
Where is KE the greatest? Least?
W = Fd
P = W/t
**May need to find work in order to find Power!!
**If you are lifting an object, force required is equal to the weight of the object(not the mass!!)
vw = f l
What waves have the shortest wavelength?
What waves have the lowest frequency?
What waves carry the least energy?