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6.7B - Balanced & Unbalanced Forces

Total questions: 103

Worksheet time: 4hrs 54mins

Name
Class
Date
1.

Are the forces acting on the object balanced or unbalanced? The man does a flip on the fly board.


(a)  
Choose from the below words
unbalanced
balanced
2.

How will this object move?

a)

It will not move

b)

It will move in both directions

c)

It will move to the right

d)

It will move to the left

3.

How will this object move?

a)

It will not move

b)

It will move in both directions

c)

It will move to the right

d)

It will move to the left

4.

Shadell pushes a box 35 N to the right. Nazai pushes the box 25 N in the same direction. What is the net force?


(a)  
Choose from the below words
60 N unbalanced to the right
60 N balanced to the right
10 N balanced to the right
10 N unbalanced to the right
5.

What is net force?

(a)  

6.

Balanced or Unbalanced

(a)  

7.

What is the net force?


(a)  
Choose from the below words
5 N left
30 N left
25 N right
55 N right
8.

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

a)

no change in motion

b)

moving at a constant speed

c)

causes a change in motion

d)

net force of zero

9.

If an object is not moving the forces acting upon it are (a)  

10.

A (a)   is a push or a pull on an object.

11.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
12.

Balanced forces causes

a)

speed of an object

b)

change in motion

c)

no change in motion

d)

no friction on object

13.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
14.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
15.

Calculate the net force shown in the  diagram?

(a)  

16.
What is the net force of an object that is not moving?
a)
0N
b)
100N
c)
Upward force
17.
Describe the motion of the car:
a)
accelerating left
b)
constant speed
c)
accelerating right
d)
constant speed
18.
Acceleration only takes place when things speed up. 
a)
True
b)
False
19.
When are you undergoing an acceleration in a car? 
a)
speed up
b)
slow down
c)
make turns
d)
all of these!
20.
Balanced or Unbalanced?
a)
Balanced 
b)
Unbalanced
21.
What is the net force on this box?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
22.
What is the unit of force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
23.
The total amount of forces acting on an object is called...
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
24.
Which of the following has a net force of 0 Newtons?
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 
25.
(T or F?) A balanced force is only an object that is not moving. 
a)
True 
b)
False
26.

To calculate net force you must

a)

Add the forces

b)

Subtract the forces

27.
Which could be an example of an unbalanced force?
a)
A plate sitting on a dining table
b)
A ball at the top of a hill that is not moving
c)
A soccer ball kicked in space, traveling at a constant speed
d)
A baseball that has just been thrown to home plate.
28.
When an object has a net for that is GREATER than 0 Newtons, the object is...
a)
balanced and still
b)
balanced and moving at a constant speed
c)
unbalanced and accelerating
d)
unbalanced and still
29.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
The forces of the table pushing up and gravity pulling down are balanced
30.

In a tug of war game, the NET FORCE is 50N to the LEFT. The winning team pulled with a force of 200N to the left. How much force did the losing team pull with?

a)

150N right

b)

250N right

c)

100N right

d)

50N right

31.
a)
Balanced
b)
Unbalanced
32.
a)
Balanced
b)
Unbalanced
33.
a)
Balanced
b)
Unbalanced
34.
a)
Balanced
b)
Unbalanced
35.
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. 
36.
A wheeled cart is moving to the right at a constant speed.  Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?
a)
Balanced Forces, Constant Speed
b)
Balanced Forces, Acceleration
c)
Unbalanced Forces, Constant Speed
d)
Unbalanced Forces, Acceleration
37.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
38.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
39.
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 
40.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
41.

These forces are...

a)

Balanced

b)

Unbalanced

42.

These forces are...

a)

Balanced

b)

Unbalanced

43.

These forces are...

a)

Balanced

b)

Unbalanced

44.

The net force is...

a)

50 N

b)

0 N

c)

100 N

d)

2500 N

45.
Balanced or unbalanced?
a)
balanced
b)
unbalanced
46.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
47.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
48.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
49.

Which of the following objects will experience an unbalanced force?

a)

A bike rider on a smooth and level road, pedaling at a constant rate.

b)

A train pulling on another train, each with the same amount of force.

c)

A chair sitting on the floor with balanced forces acting in opposite directions.

d)

A ball rolling across the floor with friction acting in the opposite direction.

50.
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
51.

A wheeled cart is moving to the right at a constant speed. Two forces of equal magnitude are acting upon the cart. Which of the following best describes the forces and motion of the cart?

a)

Balanced Forces, Constant Speed

b)

Balanced Forces, Acceleration

c)

Unbalanced Forces, Constant Speed

d)

Unbalanced Forces, Acceleration

52.
If two forces act on an object in the same direction, the net force is the _____________
a)
the difference between the two forces
b)
the sum of the two forces
c)
Only one of the forces acts on the object
d)
DOOMSDAY!
53.

What is the net force?

a)

400 N Up at an increasing speed

b)

400 N Down at an increasing speed

c)

400 N Down at a constant speed

d)

800 N Down at a constant speed

54.
Why does a book on a table not move?
a)
No forces are acting on the book
b)
Gravity is the only force acting on the book
c)
Forces of the table pushing up and gravity pulling down are balanced
55.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
56.
(T or F?) A balanced force is only an object that is not moving. 
a)
True 
b)
False
57.
Are forces balanced or unbalanced when a car is moving at a constant speed in a straight line?
a)
Balanced
b)
Unbalanced
58.
Why is person B having a hard time moving down the hill?
a)
Person B has more friction than person A.
b)
Person B has the same friction as person A.
c)
Person B is out of shape.
d)
Person B has less friction has person A.
59.

If the car in the diagram rolls faster and faster as it moves down the ramp, you can be sure that

a)

there is no friction acting on the object.

b)

the forces acting on it are unbalanced.

c)

the net force on the car is 0 N.

d)

only gravity is acting on the car.

60.

Based on the information in the diagram, what is the net force acting on this object?

a)

12 N downward at a constant speed

b)

4 N upward at an increasing speed

c)

4 N downward at an increasing speed

d)

8 N to the left at a constant speed

61.
Students are playing tug-of-war. If group B pulls the rope to the right with a force of 400 N and group A pulls the rope to the left with a force of 250 N, what will happen to the ribbon in the middle of the rope?
a)
The ribbon will move to the left and group A will win the tug-of-war.
b)
The ribbon will move to the left and group B will win the tug-of-war.
c)
The ribbon will move to the right and group B will win the tug-of-war.
d)
The ribbon will move to the right and group A will win the tug-of-war.
62.
A cyclist traveling at 25 km/hr turns sharply to the left while continuing to move 25 km/hr. This means the forces involved are_____________________.
a)
Balanced, because the cyclist's speed did not change.
b)
Balanced, because he was still moving forward.
c)
Unbalanced, because it's the same bicycle.
d)
Unbalanced, because his direction changed.
63.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to move to the right?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
64.
The forces represented by the arrows in the diagrams are applied to the four objects that are at rest on a table. Which object is most likely to remain in place?
a)
Object W
b)
Object X
c)
Object Y
d)
Object Z
65.
If a force does not cause an object to move, it's considered a(n) __________________ force.
a)
Balanced
b)
Unbalanced
c)
Wimpy
d)
Weak
66.
An airplane is travelling North through the sky at a constant speed when turbulence causes it to take a different route, changing its direction. Explain the forces at work on this plane.
a)
Unbalanced, because the plane is moving forward, not backwards
b)
Unbalanced, because the speed is constant and there is a change in direction
c)
Balanced, because the plane is not falling to a lower altitude
d)
Unbalanced, because the plane is in motion
67.
An airplane is travelling at a constant speed of 540 mph.  Explain the forces at work on the plane.
a)
Unbalanced, because the plane is moving forward not backards
b)
Balanced, because the speed is constant and there is no change in direction
c)
Balanced, because the plane is not falling to a lower altitude
d)
Unbalanced, because the plane is in motion
68.
Imagine a bat swinging with a force of 1200 N, hitting a ball pitched with a force of 400 N. At what net force does the ball move away from the bat?
a)
1600 N
b)
800 N
c)
400 N
d)
Net force of 0 N
69.
The roller coaster car begins at point W.  At what point along the track will the car have the greatest amount of kinetic energy?
a)
W
b)
X
c)
Y
d)
Z
70.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
71.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
72.

Calculate the Net Force.

a)

60N, Right

b)

60N, Left

c)

100N, Right

d)

100N, Left

73.
On which surface would friction be the greatest?
a)
carpet
b)
ice
c)
snow
d)
water
74.

A book rests on a table. The force of gravity pulls down on the book with a force of 20 newtons. What prevents the books from moving downward?

a)

The table presses back up on the book with an equal and opposite force of 20 newtons.

b)

The table presses back up on the book with a force greater than 20 newtons.

c)

The table and the book together are accelerating downwards at 9.8 m/sec2

d)

The inertia of the book holds it up

75.
Which one is balanced?
a)
top
b)
bottom
c)
both
76.
Is it BALANCED? 
a)
Yes
b)
No
77.
If there are two forces going in the SAME direction, you would ...?
a)
(-) Subtract the forces
b)
(+) Add the forces
c)
Neither
d)
(x) Multiply
78.
The FORCE that PULLS things down or back to EARTH.
a)
Speed
b)
Gravity
79.
If the net force is 0 the object will ... 
a)
CHANGES motion
b)
STAY the SAME, NOT Move
80.
What is the net force?
a)
65 N left
b)
65 N right
c)
35 N left
d)
35 N right
81.
What is the net force?
a)
4.2 N left
b)
4.2 N right
c)
2.2 N left
d)
2.2 N right
82.
What is the net force?
a)
5.5 N left
b)
5.5 N right
c)
2.5 N left
d)
2.5 N right
83.
What is the net force?
a)
11 N left
b)
11 N right
c)
3 N left
d)
3 N right
84.
What is the net force?
a)
3 N left
b)
3 N right
c)
7 N left
d)
7 N right
85.
The graph shows how the speed of an object changed over time. During which segments of this graph were the forces acting on the object balanced?
a)
R only
b)
Q and S
c)
R and T
d)
R, S and T
86.
The diagram below shows a skateboarder pushing himself forward with a force of 25 N while the wind pushes back with a force of 5 N. How will the skateboarder be affected if the force of the wind increases to 8 N?
a)
The speed of the skateboarder will increase.
b)
The speed of the skateboarder will remain constant.
c)
The speed of the skateboarder will decrease.
d)
The skateboarder will come to a stop.
87.
This list below includes six different scenarios. Which objects in the list experience an unbalanced force?
a)
The ball, the cat, and the flag
b)
The marble, the book and the toy car
c)
The cat, the book, and the flag
d)
The marble, the ball, the cat, and the toy car
88.

How do you find the net force of this image.

a)

Add up all the arrows

b)

Add a green arrow and the orange arrow.

c)

Subtract all the arrows.

d)

Add the green arrows and subtract the orange arrow.

89.

If a car has a force of 54 N forwards and the brakes have a force of 73 N backwards, what is the overall Net Force.

a)

16 backwards

b)

19 forwards

c)

18 backwords

d)

23 forwards

90.

If the wind is heading south with a force of 5 N, and a car is going north with force of 78936 N, what is the Net Force and Direction.

a)

78931 N North

b)

78931 N South

c)

78531 N North

d)

78531 N South

91.

What is the Net Force and which direction will the object move?

a)

641, Left

b)

571, Left

c)

70, Right

d)

480, Right

92.

Is the Net Force balanced or Unbalanced?

a)

Balanced

b)

Unbalanced

93.

If a boat traveling East has a Net Force of 324 N, and the wind blowing West has a Net Force of 789 N. What is the overall Net Force and which side?

a)

465 N, East

b)

465 N, West

c)

1113 N, West

d)

1113 N, East

94.

8 N to the left , and 4 N to the right. Find the net force. Is this balanced

a)

12 N Right No

b)

12 N Right Yes

c)

4 N Left Yes

d)

4 N Left No

95.

If a person is picking up a book with the force of 50 N and the gravity is pushing down with 15 N, what is the net force?

a)

50 N

b)

35 N

c)

65 N

d)

15 N

96.

With unbalanced forces, the object will move in the direction of the _______ force.

a)

equal

b)

smaller

c)

larger

97.

You and your friend, are playing tug of war. Your friend pulls with a force of 55 N, to the rights. You pull with a force of 65 N, to the left. What is the net force on the rope?

a)

20 N, to the left

b)

20 N, to the right

c)

10 N, to the right

d)

10 N, to the left

98.

The forces acting an a toy car are shown.

In which direction will the race car move and with how much force?

a)

Right, 11 Newtons

b)

Left, 11 Newtons

c)

Right, 1 Newton

d)

Left, 1 Newton

99.

To calculate net force you must

a)

Add the forces

b)

Subtract the forces

100.

Based on the information in the diagram, what is the net force acting on this object?

a)

12 N downward at a constant speed

b)

4 N upward at an increasing speed

c)

4 N downward at an increasing speed

d)

8 N to the left at a constant speed

101.

What is the net force?

a)

400 N Up at an increasing speed

b)

400 N Down at an increasing speed

c)

400 N Down at a constant speed

d)

800 N Down at a constant speed

102.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
103.
If two forces act on an object in the same direction, the net force is the _____________
a)
the difference between the two forces
b)
the sum of the two forces
c)
Only one of the forces acts on the object
d)
DOOMSDAY!

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