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Balanced and Unbalanced Forces HW

Total questions: 65

Worksheet time: 2hrs 49mins

Name
Class
Date
1.

When forces are acting in the same direction they should be added together.

a)

True

b)

False

2.

The sum of all the forces acting on an object is known as the (a)   force.

3.

Forces that are acting in opposite directions should be subtracted from each other.

a)

True

b)

False

4.

The net force acting on the object is acting

a)

to the right

b)

up

c)

down

d)

to the left

5.

The net force acting on the object is (a)   N.

6.

Is it balanced?

a)

Yes

b)

No

7.

The net force is (a)   N.

8.

What force holds the planets in motion around the sun?

a)

magnetic

b)

electrical

c)

graviational

d)

air resistance

9.

If there are two forces going in the same direction how would you find net force?

a)

subtract

b)

add

c)

neither

d)

multiply

10.

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

a)

larger

b)

smaller

c)

equal

11.

What is a force?

a)

the motion the object creates

b)

the object hitting one another

c)

the push or pull of an object

d)

really going fast

12.

What is the net force?

a)

20 N

b)

0 N

c)

400 N

d)

40 N

13.

If these teams are pulling with the same amount of force, what will happen?

a)

The boy in the green shirt will win.

b)

They will not move at all.

c)

The boy in the red shirt will win.

d)

Both will fall down

14.

What is the net force and direction?

a)

4 N to left

b)

4 N to right

c)

0 n to left

d)

4 N

15.

What is the net force and direction?

a)

4 N to left

b)

4 N to right

c)

0 N

d)

0 N to right

16.

What is the net force and direction?

a)

4 N to left

b)

4 N to right

c)

0 N

d)

0 N to right

17.

What is the net force and direction?

a)

3 N to left

b)

3 N

c)

0 N

d)

3 N to right

18.

What is the net force and direction?

a)

5 N to left

b)

7 N

c)

2 N to right

d)

5 N to right

19.

What is the net force and direction?

a)

1 N to left

b)

5 N to left

c)

1 N to right

d)

4 N to right

20.

Forces that have a net force of zero newtons are considered to be a(n)

a)

balanced force

b)

unbalanced force

21.

When an apple falls from a tree, forces must be acting on it. escribe how the forces act on the apple to make it fall.

4 lines
22.

Suppose you were pushing on a heavy bucket of stones with 100 N of force and it did not move. How many newtons of force would be balancing the force you were applying?

4 lines
23.

A strong adult pulls a desk to the right. At the same time, a small child pulls the desk to the left. What direction will the desk move? Why do you think it will move in that direction?

4 lines
24.

The list describes six different situations.

1. A pendulum moving back and forth

2. A toy car rolling down a ramp

3. An airplane traveling at a constant velocity of 500 km/h north

4. A raindrop falling on a leaf

5. A marble sitting on a table

6. A hockey puck sliding across the ice at constant velocity

Which objects in the list are experiencing balanced forces?

a)

The pendulum, the toy car, and the hockey puck

b)

The airplane, the marble, and the hockey puck

c)

The toy car, the raindrop, and the marble

d)

The pendulum, the toy car, and the raindrop

25.

Which of the following could occur when the net force acting on a car is zero?

a)

The car changes speed from 0 m/s to 20 m/s

b)

The car slows down while turning a corner

c)

The car travels at a constant speed of 20 m/s

d)

The car changes speed from 20 m/s to 0 m/s

26.

Type the magnitude and in what direction.

4 lines
27.

Type the magnitude and in what direction.

4 lines
28.

Type the magnitude and in what direction.

4 lines
29.

Type the magnitude and in what direction.

4 lines
30.

Type the magnitude and in what direction.

4 lines
31.

Forces that are exerted on an object which are equal in size but opposite in direction

a)

Unbalanced force

b)

Balanced force

32.

Applied forces on an object are unequal in size but are the same or opposite in direction

a)

Unbalanced force

b)

Balanced force

33.

A card sliding across a table at a constant speed

a)

Unbalanced force

b)

Balanced force

34.

A cat shoving a glass off a table

a)

Unbalanced force

b)

Balanced force

35.

As a result, the object the forces applied to stays at rest

a)

Unbalanced force

b)

Balanced force

36.

An airplane taking off

a)

Unbalanced force

b)

Balanced force

37.

Motorcycles going at constant speed

a)

Unbalanced force

b)

Balanced force

38.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
39.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
40.

Which of the following is an example of an unbalanced force?

a)
b)
c)
d)
41.
The unit for force is a called a: 
a)
Galileo
b)
Newton
c)
Aristotle
42.

Calculate the resultant force.

a)

40N, Left

b)

40N, Right

c)

0N, Balanced

d)

75N, Right

43.
The overall force acting on an object after all the forces are combined is called a 
a)
net force
b)
unbalanced force
c)
balanced force
44.
If there are two forces going in the same direction how would you find the net force?
a)
Subtract
b)
Add
c)
Neither
d)
Multiply
45.
What is the net force?
a)
17 N Right
b)
3 N Right
c)
3 N Left
d)
17 N Left
46.
What is the net force on this box?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
47.
What is the unit of force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
48.
The total amount of forces acting on an object is called...
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
49.
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 
50.
(T or F?) A balanced force is only an object that is not moving. 
a)
True 
b)
False
51.

To calculate net force you must

a)

Add the forces

b)

Subtract the forces

52.
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.
53.
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
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)
The forces of the table pushing up and gravity pulling down are balanced
55.

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

56.

A push or a pull exerted on an object in order to change the object's motion is called...

a)

a Newton

b)

a force

c)

a net force

57.

The SI unit of measure for force.

a)

Newton

b)

force

c)

net force

58.

The combination of all forces acting on an object.

a)

Newton

b)

force

c)

net force

59.

Which of the following choices best represents force?

a)

a push or a pull always causing motion

b)

a push or a pull always causing acceleration

c)

a push or a pull acting without an object

d)

a push or a pull acting on an object

60.

Which of the following best determines the net force when more than one force is acting on an object?

a)

a combination of all motions of an object

b)

a combination of all motions of an object in two directions

c)

a combination of all forces acting on an object

d)

a combination of forces acting on an object in two directions

61.

When the net forces equal 0 N, they are which of the following?

a)

balanced

b)

unbalanced

c)

a push

d)

a pull

62.

Which of the following always causes change in speed, direction, or both?

a)

balanced forces

b)

unbalanced forces

c)

either balanced or unbalanced forces

d)

any combination of forces

63.

Which of the following causes an object to start moving?

a)

balanced forces

b)

unbalanced forces

c)

either balanced or unbalanced forces

d)

any combination of forces

64.

When forces are balanced, the net force equals how many newtons?

a)

0

b)

1

c)

2

d)

3

65.

How would you find the net force of two dogs pulling in opposite directions?

a)

Subtract the smaller force from the larger force.

b)

Add the two forces.

c)

Subtract the larger force from the smaller force.

d)

Multiply the forces.