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Forces

Total questions: 15

Worksheet time: 2hrs 18mins

Name
Class
Date
1.

In the free-body diagram, which of the following is the gravitational force acting on the balloon?

a)

5120 N

b)

950 N

c)

1520 N

d)

4050 N

2.
Who wins the tug of war with what net force?
a)
The person on the left with 20 N
b)
The person on the left with 80 N
c)
The people on the right with 20 N
d)
The people on the right with 100 N
3.
Two forces act on an object to the right at the same time.  What force is required to bring the object into equilibrium?
a)
9 N to the right
b)
9 N to the left
c)
3 N to the left
d)
18 N to the left
4.
Which of the following best explains the behavior of the objects shown in the picture?
a)
inertia
b)
weight
c)
normal force
d)
air resistance
5.
Which statement is correct regarding the ball as it moves down the incline?
a)
It has a net force acting on it.
b)
All forces are balanced acting on it.
c)
The applied force is equal to friction.
d)
Its inertia is less than its mass.
6.

The biker travels at constant velocity. All of the following are true except-

a)

he has a net force acting on him.

b)

the normal force is equal to his weight.

c)

the force of friction acts opposite the direction of his motion.

d)

the force of friction is equal to the forward force he applies.

7.
If an object is traveling at constant velocity, which two forces will be equal?
a)
weight and net
b)
applied and frictional
c)
net and frictional
d)
net and applied
8.
If an object is resting on a flat, horizontal surface, which of the following will be equal?
a)
weight, mass, gravitational force
b)
normal force, weight, gravitational     force
c)
mass, normal force, frictional force
d)
net force, gravitational force,   frictional force
9.
For objects moving vertically at constant velocity,
a)
the net force is equal to the      frictional force.
b)
the net force is greater than the    applied force.
c)
the gravitational force is equal to    the frictional force.
d)
the applied force is equal to the      weight of the object.
10.

The diagram shows a box being pulled up the ramp. Which letter represents normal force?

a)

A

b)

B

c)

C

d)

D

11.

The diagram shows a box being pulled up the ramp. Which letter represents applied force?

a)

A

b)

B

c)

C

d)

D

12.

The diagram shows a box being pulled up the ramp. Which letter represents the weight?

a)

A

b)

B

c)

c

d)

d

13.
What is the net force acting on the block?
a)
4 lbs to the right
b)
6 lbs to the right
c)
14 lbs to the right
d)
40 lbs to the right
14.

Two forces act on an object at the same time. What is the net force of the system?

a)

9 N to the right

b)

9 N to the left

c)

3 N to the left

d)

18 N to the left

15.

The diagram shows a box being pulled up the ramp. Which letter represents the frictional force?

a)

A

b)

B

c)

c

d)

d