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Unbalanced/Balanced Forces 2020.21

Total questions: 64

Worksheet time: 38mins

Name
Class
Date
1.

A force has both strength and _____.

a)

power

b)

direction

c)

color

d)

balance

2.

When Izzy and Zoe pull on the rope with the same amount of force, the forces are _____.

a)

increased

b)

unbalanced

c)

balanced

d)

decreased

3.

Why did Izzy fall when playing tug of war?

a)

he tripped

b)

unbalanced forces

c)

balanced forces

d)

he was pushed

4.
a)
Balanced
b)
Unbalanced
5.
a)
Balanced
b)
Unbalanced
6.
a)
Balanced
b)
Unbalanced
7.
a)
Balanced
b)
Unbalanced
8.
a)
Balanced
b)
Unbalanced
9.
a)
Balanced
b)
Unbalanced
10.
a)
Balanced
b)
Unbalanced
11.
a)
Balanced
b)
Unbalanced
12.
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
13.
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
14.
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)
Earth orbiting the Sun 
d)
A baseball that has been thrown to home plate.
15.
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 
16.
If these teams are pulling with the same amount of force what will happen?
a)
The boy in blue will win.
b)
They will not move at all.
c)
The boy in red will win.
d)
Both will fall down.
17.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
18.
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. 
19.
In a tug of war the left team pulls with a force of 200N. The right team pulls with a force of 150N. What is the resultant force?
a)
50N to the left.
b)
350N to the left.
c)
350N to the right.
d)
50N to the right.
20.
What is the net force?
a)
400 N Up
b)
400 N Down
c)
- 400 N Down
d)
800 N Down
21.
Which of the blocks above has balanced forces acting on it?
a)
A
b)
B
c)
C
d)
D
22.

two forces acting in opposite directions on an object, and do not cause a change in motion; equal in size

a)

Force

b)

Balanced Force

c)

Unbalanced Force

d)

Inertia

23.

two forces acting on an object and causes a change in motion; not equal in size.

a)

Force

b)

Balanced Force

c)

Unbalanced Force

d)

Net Force

24.
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
25.

A rocket lifting off the launch pad.

a)

Balanced Force

b)

Unbalanced Force

26.

A soccer ball sitting on the ground motionless.

a)

Balanced Force

b)

Unbalanced Force

27.

Cars in a NASCAR race speeding around the track.

a)

Balanced Force

b)

Unbalanced Force

28.

A gymnast on a balance beam doing a back flip.

a)

Balanced Force

b)

Unbalanced Force

29.

A book sitting on a shelf.

a)

Balanced Force

b)

Unbalanced Force

30.

A skier skiing through flags in a race down the mountain.

a)

Balanced Force

b)

Unbalanced Force

31.

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

a)

Balanced Force

b)

Unbalanced Force

32.

A car accelerating around a mountain curve.

a)

Balanced Force

b)

Unbalanced Force

33.

A lamp sitting on a table.

a)

Balanced Force

b)

Unbalanced Force

34.

The moon orbiting the Earth at a constant speed.

a)

Balanced Force

b)

Unbalanced Force

35.

What is the unit for force?

a)

Joules (J)

b)

seconds (s)

c)

Newtons (N)

d)

meters (m)

36.

How will this object move?

a)

The object will move to the left, as the forces are balanced.

b)

The object will move to the right, as the forces are unbalanced.

c)

The object will move to the left, as the forces are unbalanced.

d)

The object will move to the right, as the forces are balanced.

37.

In the tug of war image, if both teams are pulling with the same amount of force, what will happen?

a)

The green team will win.

b)

The blue team will win.

c)

Both teams will not move.

38.

Currently, both teams have the same force. What could you make the system be unbalanced and have the blue team win? Select all that apply.

a)

Add another person to the blue team to increase the force.

b)

Take another green person away so you can decrease the force of the green team.

c)

Add another person to the blue team to decrease the force/

d)

Take another green person away so that you can increase the force of the green team.

39.

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

40.

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

41.

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

42.

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

43.

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

44.

What is the net force?

a)

28 N unbalanced

b)

14 N unbalanced

c)

14 N balanced

d)

net force of 0

45.

What is the net force?

a)

900 N unbalanced right

b)

900 N balanced right

c)

0 balanced

d)

0 unbalanced

46.

What is the net force?

a)

0 N balanced

b)

2000 N unbalanced

c)

0 N unbalanced right

d)

2000 N balanced

47.

What is the net force?

a)

0 N balanced

b)

2000 N unbalanced

c)

0 N unbalanced right

d)

2000 N balanced

48.

What is the net force?

a)

50 N balanced right

b)

950 N unbalanced left

c)

50 N unbalanced left

d)

950 N balanced right

49.

What is the net force?

a)

22 N unbalanced right

b)

22 N balanced left

c)

2 N balanced right

d)

2 N unbalanced right

50.

What is the net force?

a)

balanced

b)

unbalanced

c)

kinetic energy

d)

friction

51.

Mr. Devers pushes a box 25 to the right then he pushes the box another 30 to the right, what is the net force?

a)

5 N balanced left

b)

55 N unbalanced right

c)

55 N balanced right

d)

5 N unbalanced right

52.

Unbalanced forces

a)

movement of electrons in motion

b)

no change in motion

c)

causes a change in motion

d)

push or pull on an object

53.

The forces shown are ____forces.

a)

pushing

b)

pulling

54.

The forces shown are ______

a)

working together

b)

opposite forces

55.

The forces are ___

a)

balanced

b)

unbalanced

56.

The forces balance each other.

a)

true

b)

false

57.

The net force is

a)

1000 N TO THE RIGHT

b)

1000 N TO THE LEFT

c)

ZERO

58.

There is ___

a)

motion

b)

no motion

59.

The forces shown are _____

a)

pushing

b)

pulling

60.

The forces are ___

a)

equal

b)

not equal

61.

The forces shown are ___

a)

working together

b)

opposite forces

62.

The stronger force is pulling to the

a)

right

b)

left

63.

The weaker force is pulling to the ____

a)

right

b)

left

64.

Motion is to the ______

a)

right

b)

left

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