Physics Review
The test will count for 50% of your 4th qtr grade. It will count as 20% towards your semester grade.
1
For which one of the following motions is the object’s displacement different than the distance
traveled?
a. A car accelerates from rest to a high speed.
b. After a home run, a baseball player runs all the way around the bases.
c. A buggy car moves across the floor at a constant speed.
2
For which one of the following motions is the object’s displacement different than the distance
traveled?
a. A football coach paces back and forth along the sidelines.
b. The plane moves form a low speed to a high speed along the runway.
c. Jeremy darts straight down the hallway at a constant speed.
3
For which one of the following motions is the object’s displacement the same as the distance
that it travels?
a. Mr. R’s lawn mower made a straight path (perfectly) across the edge of the lawn.
b. Sheila made one complete loop around the race track.
c. The painter climbed up the ladder and then back down to the floor.
4
TRUE or FALSE:
The displacement for an object that makes a round-trip motion is always 0.
5.
TRUE or FALSE:
The average speed for an object that makes a round-trip motion is always 0.
6.
TRUE or FALSE:
The average velocity for an object that makes a round-trip motion is always 0.
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7.
Which one of the following is true of an object that is said to be moving slow?
a. The object has a small acceleration.
b. The object covers a short distance.
c. The object has been moving for a short time.
d. The object has a small instantaneous speed.
e. The object has changed its direction.
8.
Which of the following two objects have the same speed value?
a. An object travels 20 miles in 4 hours.
b. An object travels 40 miles in 4 hours.
c. An object travels 20 miles in 2 hours.
d. An object travels 20 miles in 2 hours.
9.
Which one of the following cars has a westward displacement?
a. A car travels east for 5 miles, turns around and returns to the starting position.
b. A car travels west for 5 miles, turns around and returns to the starting position.
c. A car travels east for 5 miles, turns around and travels west for 8 miles.
d. A car travels west for 5 miles, turns around and travels east for 8 miles.
10. Which one of the following objects has a average speed of 20 mi/hour?
a. A car moves a distance of 20 miles and is 20 miles from the starting point after 4 hours.
b. A car moves a distance of 40 miles and is 20 miles from the starting point after 1 hour.
c. A car moves a distance of 40 miles and is 20 miles from the starting point after 2 hours.
d. A car moves a distance of 40 miles and changes its velocity by 20 mi/hr after 1 hour.
11. Which one of the following objects has a average velocity of 20 mi/hour?
a. A car moves a distance of 20 miles and is 20 miles from the starting point after 4 hours.
b. A car moves a distance of 40 miles and is 20 miles from the starting point after 1 hour.
c. A car moves a distance of 40 miles and is 20 miles from the starting point after 2 hours.
d. A car moves a distance of 40 miles and changes its velocity by 20 mi/hr after 1 hour.
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12. The four data sets below represent the position (p) and time (t) of four different objects. Which
data set describes the fastest moving object?
13. The four data sets below represent the position (p) and time (t) of four different objects. Which
data set describes the slowest moving object?
14. Which of the following objects is accelerating?
a. A car is skidding to a stop.
b. A ball is following a curved path through the air.
c. A student walks down the hallway at a constant speed.
15. TRUE or FALSE:
An object that is slowing down does NOT have an acceleration.
16. An object is moving rightward and speeding up. Its acceleration is directed _____.
a. rightward
b. leftward
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17. An object is moving upward and slowing down. Its acceleration is directed _____.
a. upward
b. downward
18. TRUE or FALSE:
An object can be moving to the left and have an acceleration that is directed to the right.
19. TRUE or FALSE:
An object can be moving downward and have an acceleration that is directed upward.
20. TRUE or FALSE:
An object that is moving to the left and changing its speed MUST have an acceleration that
is directed to the left.
21. An object has an acceleration that is directed in the same direction as its motion. What is true of
the object?
a. It is moving in a circle.
b. It is moving vertically.
c. It is slowing down.
d. It is speeding up.
e. It is moving at a constant speed.
22. An object is moving east with a constant speed of 30 m/s for 5 seconds. What is the object’s
acceleration?
a. 0 m/s/s
b. 6 m/s/s
c. 30 m/s/s
d. 150 m/s/s
23. Which one of the oil drop diagrams describes an object that is moving to the right and speeding
up?
Error! Reference source not found.
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24. An old car with a leaky engine leaves the following oil drop trace on the street.
Which statement describes how the car was moving?
a. The car moves at a constant speed; it then accelerates for the remaining time.
b. The car moves at a constant speed; it accelerates; it maintains a higher, constant speed.
c. The car remains at rest for several seconds; it then accelerates to a high speed.
25. The four data sets below represent the position (p) and time (t) of four different objects. Which
data set describes an accelerating object?
26. The four data sets below represent the velocity (v) and time (t) of four different objects. Which
data set describes the object with the greatest acceleration?
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time
Graph A
time
position
position
position
position
27. Which one of the following graphs describes an object that is moving from slow to fast?
time
Graph B
Graph C
time
Graph D
28. What property of an object describes its natural tendency to resist an acceleration?
a. Weight
b. Unbalanced force
c. Inertia
d. Shape
29. Which one of the following quantities describes an object’s tendency to resist a change in its
state of motion?
a. Volume of the object.
b. Mass of the object.
c. Force exerted by an object.
30. When compared to a less massive object, a more massive object will always _____.
a. experience a greater unbalanced force
b. experience a smaller unbalanced force
c. have a greater tendency to resist changes in its state of motion
d. have a smaller tendency to resist changes in its state of motion
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31. TRUE or
FALSE:
Inertia is NOT a force. A rightward-moving object naturally maintains its state of rightward
motion in the absence of forces. A rightward force is not required to keep such an object
moving rightward.
32. Suppose that an astronaut throws a rock in outer space at a location far from significant
influences of gravity and air resistance. One would expect that the rock would ____.
a. eventually stop since all objects ultimately "lose their steam"
b. continue in motion with the same speed and direction
c. eventually stop as its inertia slowly becomes used up
d. either a, b, or c -- depending on whether the astronaut continues to push it
33. If the forces acting upon an object are balanced, then one can be certain that the object is _____.
(WARNING- TRICK QUESTION)
a. at rest
b. moving
c. not accelerating
d. moving with a constant speed
34. Which of the following can be explained using Newton’s first law of motion?
a. It explains why a stationary object remains stationary.
b. It explains why every force is accompanied by a reaction force.
c. It explains why an object accelerates with a particular acceleration value.
35. An object is moving to the right with a constant speed. What can be concluded about the forces
acting upon the object?
a. There is a rightward force but no leftward force.
b. There are only vertical forces acting upon the object.
c. There is a stronger rightward force than the leftward force.
d. All the individual forces acting upon the object are balanced.
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36. An object that is experiencing two horizontal forces – a rightward and a leftward force - is
moving to the right with a constant speed. What can be concluded about the strength of these
two forces?
a. The two forces have the same strength.
b. The rightward force is stronger than the leftward force.
c. The leftward force is stronger than the rightward force.
37. An elevator is supported by a cable and moving downward through the elevator shaft at a
constant speed. How does the upward tension force compare to the downward force of gravity?
a. The upward tension force is stronger than the downward force of gravity.
b. The downward force of gravity is stronger than the upward tension force.
c. The tension force and the force of gravity are of equal strength.
38. The diagrams below depict the individual forces acting upon an object. Each arrow represents a
force and the length of the arrow represents the size of the force. Based on this information,
which objects could be moving to the right at a constant speed?
39. The diagrams below depict the individual forces acting upon an object. Each arrow represents a
force and the length of the arrow represents the size of the force. Based on this information,
which objects could be moving to the left at a constant speed?
40. Which of the following can be explained using Newton’s second law of motion?
a. It explains why a stationary object remains stationary.
b. It explains why every force is accompanied by a reaction force.
c. It explains why an object accelerates with a particular acceleration value.
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41. An object is accelerating. What can be known for certain to be true of the object?
a. The object is not experiencing any force.
b. The individual forces acting upon the object are balanced.
c. There is a force acting in the direction of the object’s motion.
d. The individual forces that act upon the object are not balanced.
42. A car is moving to the right and slowing down. Which one of the following statements correctly
describes the forces acting upon the car?
a. Leftward force(s) is(are) stronger than the rightward force(s).
a. Rightward force(s) is(are) stronger than the leftward force(s).
c. The rightward force(s) is equal in strength to the leftward force(s).
43. A sledder is moving to the right and speeding up. Which one of the following statements
correctly describes the forces acting upon the sledder?
a. Leftward force(s) is(are) stronger than the rightward force(s).
a. Rightward force(s) is(are) stronger than the leftward force(s).
c. The rightward force(s) is equal in strength to the leftward force(s).
44. An elevator is moving to the downward and speeding up. Which one of the following statements
correctly describes the forces acting upon the elevator?
a. Upward force(s) is(are) stronger than the downward force(s).
a. Downward force(s) is(are) stronger than the upward force(s).
c. The upward force(s) is equal in strength to the downward force(s).
45. Determine the net force (Fnet) on an object that experiences the following four forces:
20 N of downward gravity force
20 N of upward normal force
15 N of rightward applied force
15 N of leftward friction force
a. Fnet = 0 N
b. Fnet = 5 N
c. Fnet = 35 N
d. Fnet = 70 N
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46. Determine the net force (Fnet) on an object that experiences the following four forces:
40 N of downward gravity force
40 N of upward normal force
25 N of rightward applied force
15 N of leftward friction force
a. Fnet = 0 N
b. Fnet = 10 N
c. Fnet = 15 N
d. Fnet = 20 N
e. Fnet = 40 N
ab. Fnet = 120 N
47. TRUE
or
FALSE:
An object would have a different mass on Earth as it would have on the moon.
48. TRUE
or
FALSE:
An object would have a different weight on Earth as it would have on the
moon.
49. In baseball, the baseball strikes the catcher's mitt and is stopped due to the marvels of Newton's
third law. Identify the two letters corresponding to the action-reaction FORCE pairs that are
responsible for the stopping of the baseball. (Select two letters).
a. The ball pushes upon itself.
b. The ball slows down as the mitt closes upon it.
c. The catcher's mitt pushes backward upon the ball.
d. There is a downward pull of the Earth upon the ball.
e. The ball applies a forward force to the catcher's mitt.
50. A small car is at rest at a stoplight. A large truck rear-ends the small car. Why is the force
experienced by the car greater than the force experienced by the truck?
a. The car has less mass; the less massive object experiences the greater force.
b. The car is at rest; the object with the smallest speed experiences the greater force.
c. Nonsense! The truck actually experiences a greater force than the car.
d. Nonsense! Both the car and the truck experience the same amount of force.