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Balanced and Unbalanced Forces

Total questions: 24

Worksheet time: 18mins

Name
Class
Date
1.

If you are pushing a chair with 50 N of force and your friend is pushing the opposite direction with 50N of force, what will happen?

a)

the chair moves toward you

b)

the chair moves toward your friend

c)

the chair doesn't move

d)

the chair spins

2.

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.

3.

What is the net force in this picture?

a)

500N

b)

1000N

c)

250N

d)

0N

4.

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

5.
What is the unit to MEASURE force?
a)
Kilogram
b)
Meter
c)
Pascal
d)
Newton
6.
The sum of all forces acting on an object.
a)
Contact Force
b)
Balanced Force
c)
Unbalanced Force
d)
Net Force
7.
What will cause an object to move?
a)
Applied forces
b)
Balanced forces
c)
Unbalanced forces
8.
What is the net force of an object that is not moving?
a)
0 N
b)
100 N
c)
Upward force
d)
10 N
9.

Calculate the Net Force.

a)

60N, Right

b)

60N, Left

c)

100N, Right

d)

100N, Left

10.
What is the net force?
a)
20 N 
b)
0 N 
c)
400 N 
d)
40 N 
11.
A ____________ is a push or a pull on an object.
a)
friction
b)
force
c)
magnet
d)
gravity
12.
What is the net force?
a)
10 N
b)
0 N
c)
25 N
d)
1 N
13.
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. 
14.
What is the net force?
a)
30 N left
b)
25 N right
c)
5 N left
d)
55 N right
15.
On which surface would friction be the greatest?
a)
carpet
b)
ice
c)
snow
d)
water
16.
Which force is so low that it causes the man to slip and fall?
a)
Gravity
b)
Friction
c)
Air Resistance
d)
Motion
17.
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.
18.
The measure of the pull of gravity on an object is ___________________.
a)
motion
b)
weight
c)
speed
d)
friction
19.
On the Picture the balloon pushes the air right. What is the second force in this interaction pair?
a)
The air pulls the ball left
b)
Gravity pulls the balloon down
c)
The air pushes the balloon left.
d)
The air pulls the balloon right.
20.
The force that opposes the motion of two surfaces sliding past each other is called ___________.
a)
acceleration
b)
inertia
c)
friction
d)
unbalanced
21.
What are balanced forces?
a)
Forces in the same direction
b)
Forces of the same size
c)
forces of the same size in opposite directions
22.
for every action there is...
a)
An equal and opposite reaction
b)
An equal and different reaction
c)
a different force
d)
two more forces
23.
This is a rocket.The rocket pushes the fuel down.What is the other force in this interaction pair?
a)
The fuel pulls the rocket up.
b)
The fuel pushes the rocket up.
c)
The rocket pulls the earth up.
d)
The earth pulls the rocket down.
24.

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

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