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Physics Final Practice Test
1. You are jogging in a race and someone faster than you passes you on your left. Even
though you were going at a fast pace, suddenly, you feel as though you’re going
slower. Why is this the case? Hint- What’s your reference point?
2. -100 mph is an example of a ____________________.
3. Which of the following are positive accelerations? Circle the correct answer(s).
Walking then jogging, hitting the brakes on your bike, sled riding down a hill.
4. If forces acting on an object become unbalanced, then there will be a change in the
object’s ____________.
5. How does air resistance affect how quickly objects fall towards the Earth?
6. The unbalanced force that always opposes the motion of any moving object is
____________.
7. Describe the effect of gravity on falling objects (include how fast they accelerate too).
8. Which of the following would have the greatest inertia and WHY? Bike, toy car,
house.
9. Which of the following requires the LEAST amount force to move the object?
Moving a golf ball at 2 m/s/s, moving a car at 2 m/s/s, or moving a golf ball at 10
m/s/s.
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10. Which of the following has the most momentum? Bike traveling at 15 mph, Car
traveling at 15 mph, Bike traveling at 20 mph, Car traveling at 20 mph.
11. Most machines make work easier by _____________ the applied force.
12. Machines that enable us to exert less force have a M.A. ________ than 1.
13. A door stopper is an example of a _____________.
14. For 1st and 2nd class levers, pliers, screwdrivers, wedges, ramps, and screws the
applied force is ____________ than the load weight or output force.
15. For the machines in the previous problem, describe the applied force and the input
distance compared to the output force and output distance. Hint- For applied/input
and output, describe the strength of the force and the distance over which it is exerted.
16. Give an example of a compound machine.
17. How can you cause the kinetic energy of an object to decrease (or transform)?
18. Suppose you throw a snowball UP over your neighbor’s fence (do not attempt).
Describe the relative amounts of kinetic and potential energy as the snowball leaves
your hand and then lands in your neighbor’s yard. Explain your answer in detail.
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19. How could you LOWER the gravitational attraction between 2 objects?
20. Draw a distance-time graph for a person traveling at a constant speed.
21. What does a distance-time graph look like for a person who is standing still?
22. How do you determine the speed of an object using a distance-time graph?
23. On a SPEED-TIME graph, describe what the graph would look like for a person
traveling at a constant speed? What would it look like for a person decelerating?
24. By examining lever diagrams and data (from your lab notebook), which levers lower
the applied force? Which one(s) change the direction of the force?
25. List 2 examples of a 1st class lever (and be sure you know why).
26. List 2 examples of a 2nd class lever (and be sure you know why).
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27. Draw a ramp and label the applied force for someone moving a heavy object up the
ramp.
28. As you add more pulleys, the M.A. will _____________ (increase or decrease).
29. Give a real world example of Newton’s 1st Law of Motion.
30. Give a real world example of Newton’s 3rd Law of Motion.
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