Review for Energy test

Review for Ch 8 Test

Things to know:

Work definition and units

Power definition and units

Potential Energy definition and units

W = E

Know how energy transfers in a pendulum.

Kinetic Energy definition and units

Differences between work and power

Does an object with kinetic energy also have momentum?

Can a moving object have PE?

What is the relationship between KE and speed?

Law of conservation of energy

 

Know how to use these formulas;

W = Fd

P = W/t

KE = 1/2mv2

PE = mgh

mgh+ 1/2 mvi= mghf + 1/2mvf2

W = PE

W = KE

Can you find a force with just a mass? (weight)