Formula Review for Chapter 13 (Work & Energy)
pg	Formula	Units	Word Problem	Solution
432	Work                                                  W = F * D	Joules	1)  How much work does a crane do if it uses a force of 5,200 Newtons to lift a girder 25 meters?
433	Power               Power = W / T	watts	2)  What is John's power output if he does 3,960 J of work in 60 seconds?
446	Potential Energy                              PE = m*g*h	Joules	3)  What is the gravitational potential energy of a 1,200 kg car at the top of a hill that is 42 meters high?
463	KE = 1/2 m*v*v	Joules	4)  What is the kinetic energy of a 0.045 kg ball traveling at 2 m/s?
459	Efficiency =                                            Work Output / Work Input	%	5)  Alice and Jim calculate that they must do 1,800 J of work to push a piano up a ramp. However, they actually end up doing 2,400 J of work. What is the efficiency of the ramp?
(lab)	Acceleration      A =                    2D / T squared	m/s/s	6)  A ball bearing drops from 2 meters in 0.6442 seconds. What is its acceleration?
(lab)	Velocity         V=D/T	m/s	7) A ball bearing rolls across the floor for 6 meters in 3 seconds. What is its velocity?