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Balanced and Unbalanced Forces

Total questions: 33

Worksheet time: 19mins

Name
Class
Date
1.
What is a PUSH or PULL of an object?
a)
Motion
b)
Force
c)
Friction
d)
Gravity
2.

The moon orbiting the Earth at a constant speed.

a)

Balanced Force

b)

Unbalanced Force

3.

A lamp sitting on a table.

a)

Balanced Force

b)

Unbalanced Force

4.

A car accelerating around a mountain curve.

a)

Balanced Force

b)

Unbalanced Force

5.

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

a)

Balanced Force

b)

Unbalanced Force

6.

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

a)

Balanced Force

b)

Unbalanced Force

7.

A book sitting on a shelf.

a)

Balanced Force

b)

Unbalanced Force

8.

A gymnast on a balance beam doing a back flip.

a)

Balanced Force

b)

Unbalanced Force

9.

Cars in a NASCAR race speeding around the track.

a)

Balanced Force

b)

Unbalanced Force

10.

A soccer ball sitting on the ground motionless.

a)

Balanced Force

b)

Unbalanced Force

11.

A rocket lifting off the launch pad.

a)

Balanced Force

b)

Unbalanced Force

12.

A soccer ball sitting on the ground motionless.

a)

Balanced Force

b)

Unbalanced Force

13.

A rocket lifting off the launch pad.

a)

Balanced Force

b)

Unbalanced Force

14.
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. 
15.
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. 
16.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
17.
What is the net force?
a)
40 N left
b)
0 N Balalnced
c)
400 N right
d)
40 N right
18.
Calculate the Net Force. 
a)
60N, Left 
b)
40N, Right 
c)
0N
d)
60N, Right
19.
Calculate the Net Force. 
a)
40N, Left
b)
40N, Right
c)
0N, Balanced
d)
75N, Right
20.

These forces are...

a)

Balanced

b)

Unbalanced

21.

These forces are...

a)

Balanced

b)

Unbalanced

22.

These forces are...

a)

Balanced

b)

Unbalanced

23.

The net force is...

a)

50 N

b)

0 N

c)

100 N

d)

2500 N

24.

The net force is...

a)

-20 N

b)

0 N

c)

80 N

d)

20 N

25.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
26.
If an object is not moving the forces acting upon it are _____________
a)
unbalanced
b)
weak
c)
balanced
d)
Hulk Smash!
27.

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

28.
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
29.

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

30.

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

31.
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.
32.

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.

33.
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

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