Quiz about Understanding Forces in Motion

Question 1

Which force is responsible for keeping us grounded on Earth?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Applied force

Question 2

What type of force is exerted by a surface to support the weight of an object resting on it?

Accepted Answer

Normal force

Answer

Friction

Answer

Gravity

Answer

Magnetism

Question 3

If a book is sliding across a table and comes to a stop, which force is primarily responsible for stopping the book?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Applied force

Question 4

A magnet attracts a paperclip. Which type of force is acting between the magnet and the paperclip?

Accepted Answer

Magnetism

Answer

Gravity

Answer

Friction

Answer

Normal force

Question 5

A person pushes a box with a force of 10 N to the right, and friction exerts a force of 4 N to the left. What is the net force on the box?

Accepted Answer

6 N to the right

Answer

14 N to the right

Answer

6 N to the left

Answer

14 N to the left

Question 6

If the forces acting on an object are balanced, what can be said about the object's motion?

Accepted Answer

The object will remain at rest or move at a constant speed.

Answer

The object will accelerate.

Answer

The object will decelerate.

Answer

The object will change direction.

Question 7

According to Newton's Third Law of Motion, what happens when you push against a wall?

Accepted Answer

The wall pushes back with an equal and opposite force.

Answer

The wall moves.

Answer

The wall exerts no force.

Answer

The wall exerts a greater force.

Question 8

A car is moving at a constant speed on a straight road. What can be said about the forces acting on the car?

Accepted Answer

The forces are balanced.

Answer

The forces are unbalanced.

Answer

There are no forces acting on the car.

Answer

Only gravity is acting on the car.

Question 9

Which of the following is an example of an applied force?

Accepted Answer

A person pushing a shopping cart

Answer

A magnet attracting a nail

Answer

A book resting on a table

Answer

A ball falling to the ground

Question 10

If two people are pulling on a rope in opposite directions with equal force, what is the net force on the rope?

Accepted Answer

Zero

Answer

Greater than zero

Answer

Less than zero

Answer

Cannot be determined

Question 11

Which of the following scenarios demonstrates Newton's Third Law of Motion?

Accepted Answer

A rocket launching into space

Answer

A car accelerating on a highway

Answer

A book resting on a table

Answer

A person sitting in a chair

Question 12

A ball is thrown upwards. What force acts on the ball to bring it back down?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Normal force

Question 13

If a force of 5 N is applied to the right and a force of 3 N is applied to the left on an object, what is the net force?

Accepted Answer

2 N to the right

Answer

8 N to the right

Answer

2 N to the left

Answer

8 N to the left

Question 14

What happens to an object when unbalanced forces act on it?

Accepted Answer

It accelerates.

Answer

It remains at rest.

Answer

It moves at a constant speed.

Answer

It disappears.

Question 15

Which of the following is an example of a normal force?

Accepted Answer

A chair supporting a person sitting on it

Answer

A book sliding across a table

Answer

A magnet sticking to a refrigerator

Answer

A ball rolling down a hill

Question 16

The diagram shows a girl pulling a wagon with a force of 30 N. What is the force with which the wagon pulls the girl?

Accepted Answer

<ol type="A"><li>30 newtons</li></ol>

Answer

<ol type="A"><li>10 newtons</li></ol>

Answer

<ol type="A"><li>20 newtons</li></ol>

Answer

The wagon does not pull the girl

Question 17

A fish moves through water by pushing the water backwards and the water pushes the fish forward. Choose the statement that best explains the science behind the act.

Accepted Answer

Every action has an equal and opposite reaction.

Answer

A body remains at rest unless acted on by an unbalanced force.

Answer

Acceleration increases as force increases.

Answer

Acceleration decreases as mass increases.

Question 18

Which of the following BEST explains why Alex is able to move backward on the swing when he pushes his feet forward and against the ground?

Accepted Answer

When Alex pushes his feet against the ground, the ground pushes him back with an equal and opposite force.

Answer

When Alex pushes his feet against the ground, his body bends backward.

Answer

When Alex pushes his feet against the ground, the wind pushes him backward.

Answer

When Alex pushes his feet against the ground, the swing pushes him forward.

Question 19

What type of force describes the red arrow?

Accepted Answer

Friction Force

Answer

Gravity Force

Answer

Driving Force

Answer

Air friction resistance Force

Question 20

In which direction does the force of friction act?

Accepted Answer

In the opposite direction of motion

Answer

In the same direction as the motion

Answer

In a direction perpendicular to the motion

Answer

In the same direction as gravity

Question 21

Which two of these forces act on parachutes?

Accepted Answer

Air Resistance

Accepted Answer

Gravity

Answer

Thrust

Answer

Kinetic Energy

Question 22

What is the net force on the object shown in the picture below?

Accepted Answer

40 newtons toward left

Answer

180 newtons toward left

Answer

100 newtons toward right

Answer

<ol type="A"><li>0 newtons</li></ol>

Question 23

Team A and B are in a tug of war competition. The force applied by each team is represented by an arrow. What will be the direction of the net force acting on the rope?

Accepted Answer

The net force will act towards Team B.

Answer

The net force will act towards Team A.

Answer

The net force will act in a downward direction.

Answer

No net force will act on the rope.

Question 24

Alex is pushing a heavy box. The force he exerts is represented by the arrow. In order to make his task easier, in which direction should an additional force be applied?

Accepted Answer

<ol type="A"><li>Picture B</li></ol>

Answer

<ol type="A"><li>Picture A</li></ol>

Answer

<ol type="A"><li>Picture C</li></ol>

Answer

<ol type="A"><li>Picture D</li></ol>

Question 25

Which force prevents a box placed on a table from falling through the table?

Accepted Answer

Normal force

Answer

<ol type="A"><li>Gravity</li></ol>

Answer

Magnetic force

Answer

Unbalanced force

Question 26

A boy applied a force on a box that was at rest. The box was also acted upon by the force of friction. Which of these will happen when the force of friction is equal to the force applied by the boy?

Accepted Answer

The box will remain and rest and not move.

Answer

The box will move in the direction of the applied force.

Answer

The box will move in the direction of the frictional force.

Answer

The box will change its direction of motion.

Question 27

One student pushed a box with a force of 5N to the east and another pushed it at the same time with a force of 5N to the west. Which of the following statements about the forces is TRUE?

Accepted Answer

The net force is 0 newtons and the forces are balanced.

Answer

The net force is 10 newtons and the forces are balanced.

Answer

The net force is 0 newtons and the forces are unbalanced.

Answer

The net force is 10 newtons and the forces are unbalanced.

Question 28

Name the missing force that is acting AGAINST the applied force...

Accepted Answer

Frictional force

Answer

Weight force

Answer

Normal Force

Answer

Force of Tension

Question 29

Which of the following does NOT indicate that there is a Force acting on an object?

Accepted Answer

an object is moving at a constant velocity

Answer

a moving object changes direction

Answer

an object speeds up then slows down

Answer

an object is moving then it suddenly stops

Question 30

Name the missing force...

Accepted Answer

normal force

Answer

applied force

Answer

frictional force

Answer

tension force

Understanding Forces in Motion

Create a free account and access millions of resources

Similar Resources on Wayground

Popular Resources on Wayground

Discover more resources for Science