Quiz about Unbalanced Forces Quiz

Question 1

Two students apply force to a box at rest on the floor.

What is the total amount of force in Newtons acting on the box and in which direction?

Accepted Answer

70 N Left

Answer

70 N Right

Answer

10 N Left

Answer

10 N Right

Question 2

The image provided shows two toy cars pushing against each other with a force given in Newtons.

Which of the following describes how the two-car system will behave? The two cars will -

Accepted Answer

accelerate steadily to the right.

Answer

move at a constant speed to the right.

Answer

accelerate steadily to the left.

Answer

move at a constant speed to the left.

Question 3

Which of the following examples best represents an object with balanced forces acting upon it?

Accepted Answer

A book sitting on a high shelf.

Answer

A boat moving through the water.

Answer

A wagon rolling down a steep hill.

Answer

A baseball thrown into the air.

Question 4

The forces acting on a toy car are shown.

In which direction will the race car move and with how much force?

Accepted Answer

Right, 1 Newton

Answer

Right, 11 Newtons

Answer

Left, 11 Newtons

Answer

Left, 1 Newton

Question 5

Calculate the net force of the following situation.

<-- 10 Newtons + --> 30 Newtons

Accepted Answer

--> 20 Newtons

Answer

<-- 40 Newtons

Answer

<-- 20 Newtons

Answer

--> 40 Newtons

Question 6

Which of the following sets of forces acting on an object will result in the object moving?

Accepted Answer

31 Newtons Left and 32 Newtons Right

Answer

5 Newtons Up and 5 Newtons Down

Answer

0 Newtons Up and 0 Newtons Down

Answer

9 Newtons Left and 9 Newtons Right

Question 7

A student wanted to get an object to move with a net force of Newtons. The combinations of forces that can be exerted to create that net force are:

Accepted Answer

Question 8

Which of the following situations is an example of unbalanced forces acting upon an object?

Accepted Answer

A rock accelerating as it rolls down a hill

Answer

A rope pulled from both sides with equal force

Answer

A car moving constantly at 30 miles per hour

Answer

A science text book lying on the floor

Question 9

Provided is a diagram showing forces on a box.

What is the net force on the box?

Accepted Answer

5 Newtons -->

Answer

5 Newtons <--

Answer

15 Newtons -->

Answer

15 Newtons <--

Question 10

Which of the following is an example of balanced forces acting upon an object?

Accepted Answer

A boulder sitting at the top of a mountain

Answer

An apple falling from the branch of a tree

Answer

A baseball accelerating away from a bat

Answer

An empty wagon rolling to a stop

Question 11

Provided is a diagram showing forces on box.

What is the net force on the box?

Accepted Answer

10 Newtons West

Answer

10 Newtons East

Answer

90 Newtons West

Answer

90 Newtons East

Question 12

For an object to remain at rest, which of the following must be true?

Accepted Answer

The forces on it are balanced

Answer

There is no friction

Answer

Gravity does not act on it

Answer

The object has no mass

Question 13

The illustration provided shows two boys pulling on opposite ends of a rope with different amounts of force.

What is the net force on the rope?

Accepted Answer

10 N right

Answer

90 N right

Answer

90 N left

Answer

10 N left

Question 14

If an object increases in speed, it must be as a result of -

Accepted Answer

unbalanced forces

Answer

increasing friction

Answer

gravitational attraction

Answer

air resistance

Question 15

Provided is a diagram showing forces on a box.

Given the forces being applied from the left and right sides of the box, the box will -

Accepted Answer

accelerate to the right

Answer

move at a constant rate to the right

Answer

move at a constant rate to the left

Answer

accelerate to the left

Question 16

A ball is rolling across a field with a force of 20 N. If the force of friction from the field is 3.7 N, what would be the net force of the ball? Record and bubble in your answer below.

Accepted Answer

16.3 N

Answer

0 N

Answer

3.3 N

Answer

23.7 N

Unbalanced Forces Quiz

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