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WorksheetsFall Semester Exam
Total questions: 95
Worksheet time: 48mins
1. Which force is represented by the arrow at B?
Force of Friction
Force of gravity
Tension Force
Normal Force
1. Which force is represented by the arrow at A?
Force of Friction
Force of gravity
Tension Force
Normal Force
1. Which force is represented by the arrow at C?
Force of Friction
Force of gravity
Tension Force
Normal Force
During which interval is the cart moving forward at a constant speed?
AB
BC
CD
DE
During which interval is the cart accelerating?
AB
BC
CD
DE
What is the acceleration of the car during interval AB?
0.40 m/s/s
2.5 m/s/s
10 m/s/s
40 m/s/s
What is the average velocity of the car during interval CD?
7.5 m/s
15 m/s
17.5 m/s
35 m/s
During which of the following intervals is no unbalanced force acting on the car?
EF
BC
FG
CD
Which car has zero acceleration?
A
B
C
D
Which car is decelerating?
A
B
C
D
Which car moves the greatest distance in the time interval from t = 10 s to t = 16 s?
A
B
C
D
During which interval is the object's acceleration the greatest?
AB
EF
DE
CD
What is the initial vertical velocity of the ball?
0 m/s
9.81 m/s
20.0 m/s
60.0 m/s
What is the horizontal velocity of the ball just before it reaches the ground?
0 m/s
9.81 m/s
20.0 m/s
60.0 m/s
The centripetal force acting on the mass is directed toward which point?
A
B
C
D
The speed of the mass is changed to 2.0 meters per second. How is the centripetal acceleration of the mass changed as a result?
It is halved
It is quadrupled
It is quartered
It is doubled
The object's centripetal acceleration is directed toward which point?
A
B
C
D
In the position shown, the object's velocity is directed toward which of the following points?
A
B
C
D
Compared to the centripetal acceleration of the car while moving from B to A, the centripetal acceleration of the car while moving from D to C is which of the following?
The same amount
Four times as much
One-half as much
Twice as much
When the ball is in the position shown, the direction of the centripetal force is toward which point?
A
B
C
D
Which of the following best characterizes the centripetal acceleration of the ball?
Constant in direction, but changing in magnitude
Constant in magnitude, but changing in direction
Changing in both magnitude and direction
Constant in both magnitude and direction
If the velocity of the ball is doubled, what happens to the centripetal acceleration?
It is halved
It is quadrupled
It is doubled
It remains the same
Which of the following best describes the acceleration of the object?
It has a magnitude of zero.
It is directed away from the center of the circle
It is directed toward the center of the circle
It uniformly increases in magnitude
If the string is cut when the object is at the position shown, what is the path along which the object will travel?
A curve away from the circle
A spiral toward the center of the circle
A straight line toward the center of the circle
A straight line tangent to the circle
The centripetal force acting on the airplane is directed toward which point?
A
C
B
D
What is the magnitude of the centripetal force acting on the cart?
8.0 N
20 N
40 N
50 N
If the mass of the cart is doubled while its motion remains the same, what happens to the magnitude of the centripetal acceleration of the cart?
It is doubled
It is halved
It is quadrupled
It is unchanged
At the position shown, what is the direction of the net force acting on the airplane?
North
South
West
East
A book is pushed with an initial horizontal velocity of 5.0 meters per second off the top of a desk. What is the initial vertical velocity of the book?
0 m/s
2.5 m/s
5.0 m/s
10 m/s
Which dotted curve best represents the path of the ball after leaving the ramp?
A
B
C
D
Which of the following vectors best represents the acceleration of the object at point A?
Four cannonballs, each with mass M and initial velocity V, are fired from a cannon at different angles with the horizontal. Which angular direction of the cannon produces the greatest projectile height?
20 degrees
45 degrees
70 degrees
90 degrees
What is the centripetal acceleration of a ball traveling at 6.0 meters per second in a circle of radius 9.0 meters?
0.66 m/s/s
1.5 m/s/s
4.0 m/s/s
15 m/s/s
Which of the following best represents the directions of both the velocity and centripetal acceleration of the ball at the instant shown in the diagram?
The net force acting on the satellite is directed toward which of the following points?
A
B
C
D
A 2.0-kilogram laboratory cart is sliding across a horizontal, frictionless surface at a constant velocity of 4.0 meters per second east. What is the cart's velocity after a force of 6.0 newtons westward acts on it for 2.0 seconds?
2.0 m/s east
2.0 m/s west
10 m/s east
10 m/s west
Which object has the greatest inertia?
A
B
C
D
Which of the following objects has the greatest inertia?
A 5.0-kg object moving at 5.0 m/s
A 20-kg object at rest
A 10 kg object moving at 3.0 m/s
A 15-kg object moving at 1.0 m/s
Which of the following diagrams shows the system with the greatest inertia?
If the sum of all the forces acting on a moving object is zero, the object will do which of the following?
accelerates uniformly
continue moving with constant velocity
slow down and stop
change the direction of its motion
What is the acceleration of the block?
4.0 m/s/s to the left
2.5 m/s/s to the right
2.5 m/s/s to the left
1.5 m/s/s to the right
Compared to the inertia of a 0.10-kilogram steel ball, the inertia of a 0.20-kilogram Styrofoam ball is which of the following?
one half as much
twice as much
the same
four times as much
During which time interval is the velocity of the object constant?
0 to 2 s
2 to 3 s
3 to 4 s
4 to 5 s
Which of the following graphs best represents the motion of an object that has no unbalanced force acting on it?
Which of the following graphs best represents the relationship between the force applied to a body at rest and the body's resulting acceleration?
Which of the following graphs best represents the motion of a moving object with no unbalanced force acting on it?
A constant, unbalanced force is applied to an object for a period of time. Which of the following graphs best represents the acceleration of the object as a function of the time elapsed?
An unbalanced force of 10. newtons is applied to an object of mass 4.0 kilograms. What is the acceleration of the object?
0.40 m/s/s
2.5 m/s/s
14 m/s/s
40 m/s/s
What is the magnitude of the acceleration of the block?
0.33 m/s/s
3.0 m/s/s
6.0 m/s/s
12 m/s/s
When a force of 50 newtons acts on a mass of 10 kilograms, what is the resulting acceleration?
5 m/s/s
40 m/s/s
60 m/s/s
500 m/s/s
Which of the following objects would experience the greatest acceleration if the same unbalanced force were applied to each?
An object of mass 1 kg
An object of mass 2 kg
An object of mass 3 kg
An object of mass 4 kg
A cart is uniformly accelerating from rest. Which of the following best describes the net force acting on the cart?
Constant
Zero
Decreasing
Increasing
An object with a mass of 0.5 kilogram started from rest and achieved a maximum speed of 20 meters per second in 0.01 second. What average unbalanced force accelerated this object?
0.001 N
0.1 N
10 N
1000 N
58. Two blocks of masses 8.0 kilograms and 2.0 kilograms rest on a horizontal, frictionless surface. If a force applied to the 8.0-kilogram block gives it an acceleration of 5.0 m/s2, what acceleration will the same force give the 2.0-kilogram block?
1.2 m/s/s
2.5 m/s/s
10 m/s/s
20 m/s/s
An object with a mass of 2 kilograms is accelerated at 5 m/s2. What is the net force acting on the mass?
2 N
5 N
10 N
20 N
If the net force acting on an object is doubled, what happens to the acceleration of the object?
It is unchanged
It is doubled
It is quadrupled
It is halved
A man weighing 800 newtons is standing in an elevator. If the elevator rises with an acceleration of 9.8 meters per second2, what is the force exerted by the elevator on the man?
400 N
800 N
1600 N
2000 N
62. A person pushes a box of mass 4.0 kilograms along a horizontal, frictionless surface with a force of 48 newtons, causing the box to accelerate at 12 m/s/s. What is the magnitude of the force exerted by the box on the person?
4.0 N
12 N
24 N
48 N
Which of the following statements best explains why a book resting on a table is in equilibrium?
The acceleration due to gravity is 9.8 m/s/s for both the book and the table.
The weight of the book and the table's upward force on the book is equal in magnitude but opposite in direction.
There is a net force acting downward on the book
The weight of the book equals the weight of the table
What is the weight on the surface of Earth of an object of mass 2.00 kilograms?
2.00 N
4.91 N
9.81 N
19.6 N
On the surface of planet X, the acceleration due to gravity is 16 meters per second. What is the weight of a 6.0-kilogram mass located on the surface of that planet?
2.7 N
59 N
96 N
940 N
On the planet Gamma, a 4.0-kilogram mass experiences a gravitational force of 24 newtons. What is the acceleration due to gravity on planet Gamma?
0.17 m/s/s
6.0 m/s/s
9.8 m/s/s
96 m/s/s
What is the gravitational acceleration on a planet on which a 2-kilogram mass has a weight of 16 newtons?
0.13 m/s/s
8 m/s/s
10 m/s/s
32 m/s/s
Which of the following vector diagrams represents the greatest magnitude of displacement for an object?
Which of the following diagrams represents a box in equilibrium?
Which of the following vector diagrams best represents a cart slowing down as it travels to the right on a horizontal surface?
Which of the following diagrams best represents a pair of component vectors, A and B, that would combine to form resultant R?
Which of the following vectors best represents the original force?
Which of the following diagrams best represents the resultant of these two forces?
Which of the following vectors best represents the resultant velocity of the boat relative to the riverbank?
What is the magnitude of the resultant force on the object?
5.0 N
7.0 N
13 N
17 N
Which of the following is closest to the magnitude of the resultant of the two forces?
8.0 N
11 N
15 N
16 N
The magnitude of the resultant force is closest to which of the following?
20 N
40 N
45 N
60 N
Which of the following vectors best represents the resultant of F1 and F2?
Which of the following vectors best represents their resultant?
What is the magnitude of the vector sum of the two forces?
2.5 N
3.0 N
3.5 N
4.0 N
Which of the following best represents the resultant of the two vectors?
What is the approximate magnitude of the vertical component of the 300-newton force?
140 N
190 N
230 N
250 N
What is the magnitude of the vertical component of this force?
0 N
50.0 N
86.7 N
100 N
If the vector is resolved into two components, the components would best be represented by which of the following diagrams?
Vehicle A is driving east along a road at 56 km/h. Vehicle B is driving west along the same road at 68 km/h. What is the velocity of Vehicle B relative to Vehicle A?
12 km/h west
12 km/h east
124 km/h west
124 km/h east
The velocity of a vehicle is typically expressed relative to which of the following?
Another vehicle on the road
The ground
Earth's rotation
The driver of the vehicle
A bird is flying at 23 kilometers per hour (km/h) east with respect to the ground. Relative to which of the following would the bird's velocity be 0 km/h?
A second bird flying at 23 km/h east relative to the ground
A second bird flying at 23 km/h north relative to the ground
A second bird flying at 23 km/h west relative to the ground
A second bird flying at 23 km/h south relative to the ground
A person is riding a bicycle at 12 km/h due north. The cyclist's velocity would be greatest relative to which of the following?
A car that is traveling at 15 m/s due south
A second bicycle that is traveling at 15 km/h due north
A seconded bicycle that is traveling at 15 km/h due south
A car that is traveling at 15 m/s due north
Two students taking part in a swimming competition are swimming in adjacent lanes. Kim is swimming at a speed of +0.67 meters per second (m/s). Kendra's speed is +0.9 m/s. What is Kim's speed relative to Kendra?
-1.57 m/s
-0.23 m/s
0.23 m/s
1.57 m/s
A farmer is walking through a field at a velocity of +0.5 meters per second (m/s) relative to the ground. At the same time, he is throwing seeds in front of him at a velocity of +2.1 m/s relative to himself. What is the velocity of the seeds relative to the ground as they travel through the air?
-2.6 m/s
-1.6 m/s
1.6 m/s
2.6 m/s
92. Which of the following would increase the gravitational force of attraction between two objects?
Doubling the mass of one object and doubling the distance between the objects
Doubling the mass of both objects and doubling the distance between the objects
Doubling the mass of both objects, only
Doubling the distance between the objects, only
If Earth had twice the mass it has now, then the magnitude of the gravitational force between it and the Sun would be which of the following?
The same as it is now
Four times as much as it is now
Twice as much as it is now
Half as much as it is now
Two objects with equal masses are separated by a distance of 1 meter. If the mass of one of the objects were to be doubled, then the gravitational force between the two masses would be which of the following?
One-fourth as much
One-half as much
Two times as much
Four times as much
Two bodies attract each other with a gravitational force of 10.0 newtons. What would be the force of attraction if the mass of each body were doubled?
5 N
10 N
20 N
40 N
For an object to be in equilibrium, the forces acting upon it must be —
from all directions
both internal and external
equal in magnitude and identical in direction
equal in magnitude and opposite in direction
A
B
C
D
Which car has the greatest magnitude of acceleration during the time interval 10. seconds to 15 seconds?
A
B
C
D
Based on the graph, which quantity related to the motion of the body is constant?
Velocity
Speed
Acceleration
Displacement
How long will it take an object to move 100 meters if the object is traveling with an average speed of 0.5 m/s?
5 s
20 s
50 s
200 s
