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Free Body Diagrams & Resultant Forces

Total questions: 20

Worksheet time: 13mins

Name
Class
Date
1.

What is the net force when two forces of 5N and 3N act in the same direction?

a)

8N

b)

10N

c)

2N

d)

0N

2.

If a force of 10N acts to the right and a force of 7N acts to the left, what is the net force?

a)

3N

b)

17N

c)

2N

d)

4N

3.

How do you calculate the direction of the resultant force when forces act in opposite directions?

a)

Add the smaller force to the larger force and use the direction of the smaller force as the direction of the resultant force.

b)

Divide the larger force by the smaller force and use the direction of the larger force as the direction of the resultant force.

c)

Ignore the direction of the forces and only consider the magnitude of the forces to determine the direction of the resultant force.

d)

Subtract the smaller force from the larger force and use the direction of the larger force as the direction of the resultant force.

4.

If a force of 8N acts to the right and a force of 4N acts to the left, what is the direction of the resultant force?

a)

Down

b)

Up

c)

Right

d)

Left

5.

When two forces act in the same direction, how do you find the resultant force?

a)

Add the magnitudes of the two forces together

b)

Divide the magnitudes of the two forces

c)

Subtract the magnitudes of the two forces

d)

Multiply the magnitudes of the two forces together

6.

If a force of 12N acts to the right and a force of 9N acts to the left, what is the net force?

a)

3N

b)

21N

c)

6N

d)

15N

7.

What is the net force when a force of 15N acts to the right and a force of 10N acts to the left?

a)

5N

b)

25N

c)

20N

d)

2N

8.

How do you determine the direction of the resultant force when forces act in the same direction?

a)

The resultant force is in a circular direction.

b)

The resultant force is in a random direction.

c)

The resultant force is in the opposite direction of the individual forces.

d)

The resultant force is in the same direction as the individual forces.

9.

If a force of 6N acts to the right and a force of 2N acts to the left, what is the direction of the resultant force?

a)

Right

b)

Left

c)

Up

d)

Down

10.

When two forces act in opposite directions, how do you find the resultant force?

a)

Add the two forces together

b)

Ignore the forces and find the average

c)

Subtract the smaller force from the larger force.

d)

Divide the larger force by the smaller force

11.

Name the missing force...

a)

Frictional force

b)

Weight force

c)

Thrust

d)

Buoyant force

12.

Whenever an object is in motion, there is always a force opposing the motion:

a)

inertia

b)

momentum

c)

friction

d)

applied force

13.

What is the net force of this diagram?

a)

17 N, right

b)

17 N, left

c)

23 N, right

d)

12 N, up

14.

How do you calculate the net force when forces are going in the opposite direction?

a)

Add the forces

b)

Divide the forces

c)

Find a fraction of the forces

d)

Subtract the forces

15.

What do the arrows represent in a free body diagram? (Select two)

a)

Object

b)

Direction

c)

Size

d)

Mass

16.

A rightward force is applied to a dresser to accelerate it to the right across the bedroom floor.

a)
b)
c)
d)
17.

Which of the following free-body diagrams would represent the net force of this free body diagram?

a)
b)
c)
d)
18.

Which of the following represent the net force?

a)
b)
c)
d)
19.

Which of the diagrams shows a force being pulled to the left with a force of 10 N and being pull right with 20 N?

a)
b)
c)
d)
20.

What is the overall Net Force of the previous question? 30 N being pushed to the right and 10 N being pulled to the right.

a)

20 N

b)

0 N

c)

40 N

d)

300 N