1. The work done by a spring is related linearly to the displacement from equilibrium. A.True B.False

2. If it takes W amount of work to compress a spring a distance x, how much work does it take to compress the spring a distance 2x? A.W/2 B.2W C.4W D.W 2

3. Objects A and B are at heights h A and h B above the earth, where h A > h B. Which has more gravitational potential? A.Object A B.Object B C.Depends on velocities of the objects

4. K i +U i = K f + U f A. is the definition of work B. is the definition of mechanical energy C. is the definition of conservation of mechanical energy D. is not true.

5. If an object moves upward with a constant velocity, the work that the earth does on the object is A. positive B. negative C. zero.

6. The earth does ____ work on an object to move it a distance y closer to the surface if the object is has an initial velocity versus one with no initial velocity. A. more B. less C. the same amount of