Quiz about #5 Calculating Net Forces (Quiz Grade)

Question 1

What is the net force?

Accepted Answer

35 N right

Answer

65 N left

Answer

65 N right

Answer

35 N left

Question 2

What is the net force?

Accepted Answer

2.2 N left

Answer

4.2 N left

Answer

4.2 N right

Answer

2.2 N right

Question 3

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

Accepted Answer

larger

Answer

smaller

Answer

equal

Question 4

What is the net force?

Accepted Answer

4000 N left

Answer

5000 N right

Answer

4000 N right

Answer

40 N left

Question 5

What is Newton's First Law known as? The Law of

Accepted Answer

Inertia

Answer

Friction

Answer

Mass

Answer

Gravity

Question 6

What is Newton's First Law

Accepted Answer

An object at rest stays at rest, an object in motion stays in motion.

Answer

F=ma

Answer

Every action has an equal and opposite reaction

Answer

Friction

Question 7

What is the standard unit force is measured in?

Accepted Answer

N

Answer

lbs

Answer

g

Answer

m/s

Question 8

__________ is the sum of all forces acting on an object. It is capable of accelerating a mass.

Accepted Answer

net force

Answer

velocity

Answer

gravity

Answer

distance

Question 9

Calculate the Net Force.

Accepted Answer

60N, Right

Answer

60N, Left

Answer

40N, Right

Answer

0N

Question 10

What is the magnitude (size) and direction of the net force?

Accepted Answer

0 N

Answer

10 N to the Right

Answer

10 N to the Left

Answer

8 N to the Left

Question 11

Two people are pushing a disabled car. One exerts a force of 200 N east, the other a force of 150 N east. What is the net force exerted on the car?

Accepted Answer

350 N east

Answer

50 N east

Answer

50 N west

Answer

350 N west

Question 12

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

Accepted Answer

Add

Answer

Subtract

Answer

Neither

Answer

Multiply

Question 13

What is force?

Accepted Answer

A push or pull exerted on an object

Answer

A push exerted on an object

Answer

A pull exerted on an object

Answer

Nothing

Question 14

These forces are -

Accepted Answer

Unbalanced

Answer

Balanced

Question 15

To calculate net force you must -

Accepted Answer

Add the forces

Answer

Subtract the forces

Question 16

A toy car was used in an investigation about forces. During which of the following scenarios was the car experiencing balanced forces?

Accepted Answer

The toy car travels forward at a constant speed.

Answer

The toy car speeds up as it rolls down a ramp.

Answer

The toy car slows down as it rolls up a hill.

Answer

The toy car changes direction at a constant speed.

Question 17

When forces are going in the opposite direction, how do you calculate net force?

Accepted Answer

Subtract the forces.

Answer

Add the forces

Answer

Divide the forces

Answer

Find a fraction of the forces.

Question 18

The force that pulls things toward earth.

Accepted Answer

Gravity

Answer

Speed

Question 19

In the table which two forces are balanced?

Accepted Answer

S and T

Answer

Q and R

Answer

R and S

Answer

T and U

Question 20

Which block above will have the greatest net force?

Accepted Answer

Block 2

Answer

Block 1

Answer

Block 3

Answer

Block 4

Question 21

When the sum of the forces equals zero, the forces are said to be in...

Accepted Answer

Balance

Answer

Tension

Answer

Battle

Answer

Combination

Question 22

Jennifer stands on one side of a table and pushes with a force of 75 N towards Sam. If Sam wants to help Jennifer demonstrate balanced forces, what does he need to do

Accepted Answer

Push with a force of 75N toward Jennifer

Answer

Push with a force of 150N toward Jennifer

Answer

Push with a force of 75N in the same direction of Jennifer

Answer

Push with a force of 150 N in the same direction of Jennifer

Question 23

John pushes a box across the floor. What causes the box to move?

Accepted Answer

A force

Answer

Inertia

Answer

Friction

Answer

Gravity

Question 24

The tendency to resist changes in a state of motion is described as ___________.

Accepted Answer

inertia

Answer

friction

Answer

speed

Answer

velocity

Question 25

The Coffee cup in the picture is resting on a table. What force(s) are missing from the free body diagram?

Accepted Answer

The normal force from the table pushing the cup up.

Answer

No forces are missing

Answer

The normal force form the table pushing the cup down.

Answer

The friction force from the table pushing the cup left and right.

Question 26

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?

Accepted Answer

Balanced Forces, Constant Speed

Answer

Balanced Forces, Acceleration

Answer

Unbalanced Forces, Constant Speed

Answer

Unbalanced Forces, Acceleration

Question 27

The boys are playing tug-of-war. They both pull on the rope and the rope moves to the left.

Accepted Answer

The forces are unbalanced.

Answer

The forces are balanced.

Question 28

Which of the following is not a balanced force?

Accepted Answer

Option D is correct

Answer

A.

Answer

B.

Answer

C.

Question 29

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?

Accepted Answer

50N to the left.

Answer

350N to the left.

Answer

350N to the right.

Answer

50N to the right.

Question 30

What are balanced forces?

Accepted Answer

forces of the same size in opposite directions

Answer

Forces in the same direction

Answer

Forces of the same size

Question 31

What is the resultant force?

Accepted Answer

None of the above

Answer

17 N, Left

Answer

6N, Right

Question 32

Are forces balanced or unbalanced when a plane is moving at a constant speed in a straight line?

Accepted Answer

Balanced

Answer

Unbalanced

Question 33

What is the net force

Accepted Answer

0 N

Answer

10 N

Answer

25 N

Answer

1 N

Question 34

What is the net force?

Accepted Answer

400 N Down

Answer

400 N Up

Answer

- 400 N Down

Answer

800 N Down

Question 35

What is the net force?

Accepted Answer

4000 N left

Answer

5000 N right

Answer

4000 N right

Answer

40 N left

#5 Calculating Net Forces (Quiz Grade)

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