1 .		Two men, Joel and Jerry, push against a wall. Jerry stops after 10 min, while Joel is able to push for 5 min longer. Compare the work against the wall they each do. [Hint]   Joel does 50% more work than Jerry.   Jerry does 50% more work than Joel.   Joel does 75% more work than Jerry.   Neither of them do any work.
2 .		Which of the following graphs illustrates Hooke's Law (the spring force)? [Hint]
3 .		A simple pendulum, consisting of a mass m and a string, swings upward, making an angle q with the vertical. The work done by the tension force is [Hint]   zero.   mg.   mg cos q.   mg sin q.
4 .		What is the mass of the pendulum 'bob' in the figure? [Hint]   1 kg   2 kg   3 kg   5kg
5 .		What is the total mechanical energy, ME, of the pendulum? [Hint]   0 J   4.9 J   9.8 J   14.7 J
6 .		What is the maximum kinetic energy of the pendulum? [Hint]   O J   4.9 J   9.8 J   14.7 J
7 .		What is the potential energy, PE, at point B and D? [Hint]   0 J   4.9 J   9.8 J   14.7 J
8 .		At point B and D what is the relationship between the kinetic energy, KE, and the potential energy, PE? [Hint]   KE   KE=PE   KE>PE
9 .		What is the speed of the pendulum at point B and D? [Hint]   0 m/s   2.2 m/s   3.1 m/s   4.4 m/s
10 .		What is the speed of the pendulum at point C? [Hint]   0 m/s   2.2 m/s   3.1 m/s   4.4 m/s
11 .		A simple pendulum, consisting of a mass m, is attached to the end of a 1.5 m length of string. If the mass is held out horizontally, and then released from rest, its speed at the bottom is [Hint]   4.4 m/s   5.4 m/s   9.8 m/s   17 m/s
12 .		A 4-kg mass moving with speed 2 m/s, and a 2-kg mass moving with a speed of 4 m/s, are gliding over a horizontal frictionless surface. Both objects encounter the same horizontal force, which directly opposes their motion, and are brought to rest by it. Which statement best describes their respective stopping distances? [Hint]   The 4-kg mass travels twice as far as the 2-kg mass before stopping.   The 2-kg mass travels twice as far as the 4-kg mass before stopping.   Both masses travel the same distance before stopping.   The 2 kg mass travels greater than twice as far.