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Worksheets

Balanced/Unbalanced Forces

Total questions: 60

Worksheet time: 37mins

Name
Class
Date
1.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
2.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move in both directions. 
3.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
4.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
5.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
6.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
7.
You and your dad are moving the couch from one side to another. Your dad pushes with a force of 35 N to the right and you push with a force of 25 N right. What is the net force on the couch?
a)
60 N right
b)
10 N left
c)
60 n right
d)
50 N left
8.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
9.

These forces are...

a)

Balanced

b)

Unbalanced

10.

These forces are...

a)

Balanced

b)

Unbalanced

11.

These forces are...

a)

Balanced

b)

Unbalanced

12.

The net force is...

a)

50 N

b)

0 N

c)

100 N

d)

2500 N

13.

The net force is...

a)

-20 N

b)

0 N

c)

80 N

d)

20 N

14.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
15.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
16.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
17.

What is true about this image?

a)

It shows unbalance forces.

b)

It shows balanced forces.

c)

The people on the right are winning.

d)

The people on the left are winning.

18.

What is true about this picture?

a)

the forces are balanced

b)

the net force is 10N

c)

The net force is 3 N

d)

The net force is 7N

19.

You push a box 35 N to the right. Your friend pushes the box 25 N in the same direction. What is the net force?

a)

60 N balanced to the right

b)

60 N unbalanced to the right

c)

10 N balanced to the right

d)

10 N unbalanced to the right

20.

Which of the answer choices is not an characteristic of a balanced force?

a)

no change in motion

b)

moving at a constant speed

c)

net force of zero

d)

causes a change in motion

21.

If forces are going in the same direction, you should

a)

add the forces

b)

subtract the forces

c)

multiply the forces

d)

divide the net force

22.

What is net force?

a)

push or pull on an object

b)

the sum of all forces acting on an object

c)

the ability to do work by applying force

d)

the mass and height of an object

23.

What is the net force of this object?

a)

400 F arrow downward

b)

400 F arrow upward

c)

800 F arrow upward

d)

800 F arrow downward

24.

What will causes an object to move?

a)

unbalanced forces

b)

balanced forces

c)

net force

d)

potential energy

25.

Every answer choice is a characteristic of a unbalanced force, Except-

a)

moving at a constant speed

b)

causes a change in motion

c)

adding of the forces

d)

subtracting of the forces

26.

If a car is traveling faster and faster down a hill, you can be sure that-

a)

only gravity is acting on the car

b)

there is no friction acting on the car

c)

the net force on the car is 0

d)

unbalanced forces are acting on the object

27.

If you are pushing a chair 50 N toward your friend and your friend is pulling the chair in the opposite direction, what is the net force?

a)

net force of 0

b)

100 N towards you

c)

100 N towards your friend

d)

10 N towards you and your friend

28.

What is the net force?

a)

28 N unbalanced

b)

14 N unbalanced

c)

14 N balanced

d)

net force of 0

29.

What is the net force?

a)

900 N unbalanced right

b)

900 N balanced right

c)

0 balanced

d)

0 unbalanced

30.

What is the net force?

a)

0 N balanced

b)

2000 N unbalanced

c)

0 N unbalanced right

d)

2000 N balanced

31.
A ____________ is a push or a pull on an object.
a)
friction
b)
force
c)
magnet
d)
gravity
32.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
33.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
34.
How will this object move? 
a)
It won't move. 
b)
It will move to the right. 
c)
It will move to the left. 
d)
It will move up. 
35.

A lamp sitting on a table.

a)

Balanced Force

b)

Unbalanced Force

36.

The moon orbiting the Earth at a constant speed.

a)

Balanced Force

b)

Unbalanced Force

37.

Two ice skaters moving in a straight line at a constant speed.

a)

Balanced Force

b)

Unbalanced Force

38.
Are the forces acting on the rope balanced or unbalanced?
a)
Balanced
b)
Unbalanced
39.

Are the forces acting on the objects balanced or unbalanced? The dog is walking on the treadmill on level 3.

a)

balanced

b)

unbalanced

40.

Are the forcing acting on the object balanced or unbalanced? The car is drifting.

a)

balanced

b)

unbalanced

41.

Are the forcing acting on the object balanced or unbalanced? The squirrel is spinning.

a)

balanced

b)

unbalanced

42.

Are the forces acting on the objects balanced or unbalanced? The truck takes a while to come to a complete stop.

a)

balanced

b)

unbalanced

43.

Are the forces acting on the object balanced or unbalanced? Arnold and Helga take off from the start line

a)

balanced

b)

unbalanced

44.

Are the forces acting on the object balanced or unbalanced? Mario is running fast but STEADY. His speed is 10 mi/hr.

a)

balanced

b)

unbalanced

45.

Are the forces acting on the objects balanced or unbalanced? The hamster is maintaining his position on the wheel.

a)

balanced

b)

unbalanced

46.

Are the forces acting on the objects balanced or unbalanced? The cat and the mouse go from looking at each other to a chase.

a)

balanced

b)

unbalanced

47.

In order to maintain this position the forces acting on the gymnast must be __________.

a)

balanced

b)

unbalanced

48.

A rocket is traveling through the atmosphere at a constant velocity. Which of the following is true?

a)

The rocket's engine is producing an unbalanced force that keeps the rocket in the air.

b)

All of the forces acting on the rocket are balanced.

c)

The rocket exerts a greater force on its exhaust gases than the exhaust gases exert on the rocket.

d)

The rocket is moving, so some net force must be acting on it.

49.

The units for Force are:

a)

Newtons

b)

Joules

c)

m/s

d)

kg

50.

Student A and B are standing on a skateboard. Student A pushes gently on Student B to start her moving. Student B starts moving away from Student A. What will happen to Student A and why?

a)

Student A will not move, because no forces are acting on her.

b)

Student A will move toward Student B, because the same force is acting on both of them.

c)

Student A will immediately stop moving because of friction.

d)

Student A will move away from Student B, because an equal and opposite force pushes on her.

51.

How is an object’s mass related to the force needed to accelerate the object?

a)

Mass determines the direction of the force needed.

b)

Mass determines the type of force needed.

c)

The greater the mass, the greater the force needed.

d)

The smaller the mass, the greater the force needed.

52.

The full shopping cart has a mass of 75 kg and an empty one has a mass of 20kg. How much force would you need to accelerate the empty cart?

a)

We would need the same amount of force.

b)

We would need less force.

c)

We would need more force.

d)

We would not need force at all.

53.

Which statement is a valid description and explanation of the guy’s motion based on evidence from the diagram.

a)

The fridge’s force is balanced due to the overall forces of gravity and friction being less than then the force of the push.

b)

The fridge’s force is unbalanced due to amount of push not equaling the amount of gravity.

c)

The fridge’s force is balanced due to the amount force exerted by the freezer and friction thus equaling to the force of push.

d)

The fridge’s force is unbalanced due to the larger amount push force being exerted compared to the smaller amount of frictional force.

54.

George rolled a ball down a hill. The ball stopped before it reached the bottom of the hill. Which of these is most likely the reason the ball stopped rolling?

a)

Mass

b)

Inertia

c)

Friction

d)

gravity

55.

A student connected a wooden block to a spring scale. He slowly pulled on the spring scale until the block began to move. The picture shows the experiment and the point on the spring scale when the block began to move.

Which statement best describes the forces acting on the wooden block? Think in terms of pull and friction.

a)

The force on the wooden block was less than 0.4 N.

b)

The force on the wooden block was more than 0.4 N.

c)

There were no forces on the wooden block before it was moving.

d)

The forces on the wooden block were unbalanced before it was moving.

56.

Describe the motion of an object that has balanced forces acting on it.

a)

An object will accelerate.

b)

An object will not move or maintain a constant speed.

c)

An object will slow down.

d)

An object will change directions

57.

In this picture, Stan is attempting to move the refrigerator to the kitchen. Will he be successful?

a)

No, the forces acting against him are too much.

b)

No, gravity and friction will stop him.

c)

Yes, the net force is 35 N to the left.

d)

Yes, the net force is 25 N to the right.

58.

Why does a semi-truck stop a longer distance from a red light than a regular sized car?

a)

Truck drivers are not in a hurry.

b)

A regular size car takes a long time to come to a complete stop.

c)

The semi-truck has more mass and it takes a larger force for it to stop.

d)

The regular size car has less mass but it takes a larger force for it to stop.

59.
Which could be an example of a balanced force?
a)
An asteroid moving at a constant speed through space 
b)
A car accelerating from a stop sign
c)
A box of dishes falling from a counter 
d)
A rocket taking off 
60.
A girl is pushing a cart by herself with a force of 7 N. What will happen if a boy begins to help her and their combined force is 17 N?
a)
The cart will speed up.
b)
The cart will slow down.
c)
The cart will move at a constant speed in a straight line.
d)
The cart will fly to never never land!