Forces and Motion: Interactive Learning Quizzes for Third Grade Science

Question 1

What happens when you apply a force greater than the friction acting on an object?

Accepted Answer

It will move in the direction of the force.

Answer

It will not move.

Answer

It will move in the opposite direction of the force.

Answer

It will move sideways.

Question 2

Which of these describes Newton's First Law of Motion?

Accepted Answer

An object in motion will stay in motion unless a force acts on it.

Answer

An object will fall down if it is dropped.

Answer

A moving object will eventually slow down and stop.

Answer

Forces always come in pairs.

Question 3

What unit do we use to measure force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 4

Which of these objects will experience the greatest force when dropped?

Accepted Answer

A rock

Answer

A feather

Answer

A piece of paper

Answer

A toy car

Question 5

What type of force slows down or stops moving objects?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Buoyancy

Question 6

Which of these is an example of balanced forces?

Accepted Answer

A book resting on a table

Answer

A car driving down the road

Answer

A ball rolling down a hill

Answer

A person jumping up and down

Question 7

What happens if the total force acting on an object is zero?

Accepted Answer

The object will move in a straight line at a constant speed.

Answer

The object will slow down and eventually stop.

Answer

The object will speed up.

Answer

The object will change direction.

Question 8

What is the name of the force that pulls objects towards each other?

Accepted Answer

Gravity

Answer

Magnetism

Answer

Electromagnetism

Answer

Wind

Question 9

Which of Newton's laws of motion states that an object at rest will remain at rest unless acted on by an unbalanced force?

Accepted Answer

First Law of Motion

Answer

Second Law of Motion

Answer

Third Law of Motion

Answer

Law of Gravity

Question 10

What is the unit of measurement for force in the United States?

Accepted Answer

Pound

Answer

Newton

Answer

Kilogram

Answer

Meter

Question 11

What is the direction of motion for an object thrown into the air?

Accepted Answer

Up and then down

Answer

Up

Answer

Down

Answer

Down and then up

Question 12

What is the name of the force that pulls objects towards the center of the Earth?

Accepted Answer

Gravity

Answer

Magnetism

Answer

Friction

Answer

Air resistance

Question 13

Which of the following objects has the most inertia?

Accepted Answer

A bowling ball

Answer

A marble

Answer

A baseball

Answer

A feather

Question 14

How are force and acceleration related?

Accepted Answer

Force is directly proportional to acceleration

Answer

Force is inversely proportional to acceleration

Answer

Force is equal to acceleration

Answer

Force is not related to acceleration

Question 15

Which of these is NOT a type of force?

Accepted Answer

Temperature

Answer

Push

Answer

Pull

Answer

Gravity

Question 16

What occurs to an object when a force is applied to it?

Accepted Answer

It moves

Answer

It comes to a stop

Answer

It changes shape

Answer

It vanishes

Question 17

What is the unit used to measure force?

Accepted Answer

Newton

Answer

Meter

Answer

Kilogram

Answer

Second

Question 18

Which object among these possesses the greatest inertia?

Accepted Answer

A bowling ball

Answer

A baseball

Answer

A feather

Answer

A sheet of paper

Question 19

What is the relationship between force and acceleration?

Accepted Answer

Force is proportionate to acceleration.

Answer

Force is inversely related to acceleration.

Answer

There isn't a relationship between force and acceleration.

Answer

The connection between force and acceleration depends on the object's mass.

Question 20

What is the distinction between speed and velocity?

Accepted Answer

Speed is the rate at which an object's position changes, whereas velocity is the rate at which its position changes in a particular direction.

Answer

Velocity is the rate at which an object's position changes, whereas speed is the rate at which its position changes in a particular direction.

Answer

Velocity and speed are essentially the same thing.

Answer

Speed is the distance traveled, while velocity is the time it takes to travel that distance.

Question 21

What is the purpose of wearing a seatbelt in a vehicle?

Accepted Answer

To reduce the impact force in a collision

Answer

To stop you from falling out of the car

Answer

To make driving more comfortable

Answer

To avoid getting a ticket

Question 22

What do we call the unit of measurement for force?

Accepted Answer

Newtons

Answer

Kilograms

Answer

Meters

Question 23

What can you do to increase the force applied to an object?

Accepted Answer

Push harder

Answer

Pull faster

Answer

Use a smaller surface area

Question 24

What is the relationship between force and motion?

Accepted Answer

Force can make things move.

Answer

Motion can make force.

Answer

Force and motion don't affect each other.

Question 25

What is the name of the force that pulls objects towards Earth?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Question 26

What is the best way to reduce friction?

Accepted Answer

Add oil or grease.

Answer

Use a rough surface.

Answer

Make the objects heavier.

Question 27

What happens when you push or pull an object?

Accepted Answer

It moves

Answer

It changes shape

Answer

It makes a sound

Answer

Nothing happens

Question 28

What is the name of the unit we use to measure force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 29

What is an example of friction?

Accepted Answer

Sliding a book across a table

Answer

Rolling a ball down a hill

Answer

Throwing a ball in the air

Answer

Swimming in a pool

Question 30

Which law of motion says that an object will stay still unless something pushes or pulls it?

Accepted Answer

Newton's First Law

Answer

Newton's Second Law

Answer

Newton's Third Law

Answer

Law of Conservation of Energy

Question 31

What is the formula for calculating the kinetic energy of a moving object?

Accepted Answer

KE = 1/2 * mv^2

Answer

KE = mv

Answer

KE = v^2

Answer

KE = 1/2 * v^2

Question 32

Which of these is NOT a type of force?

Accepted Answer

Temperature

Answer

Push

Answer

Pull

Answer

Gravity

Question 33

What happens when a force is applied to a still object?

Accepted Answer

It moves

Answer

It stops moving

Answer

It changes direction

Answer

Nothing

Question 34

What do we call the unit of force in the metric system?

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 35

Which of these is an example of a balanced force?

Accepted Answer

Pulling a rope in opposite directions with equal force

Answer

Pushing a book with a force of 10 N

Answer

Throwing a ball

Answer

Kicking a soccer ball

Question 36

Which of these is an example of a projectile?

Accepted Answer

A ball thrown in the air

Answer

A car driving down the road

Answer

A person walking

Answer

A book sitting on a table

Question 37

What is the trajectory of a projectile?

Accepted Answer

A parabolic line

Answer

A straight line

Answer

A curved line

Answer

A circular line

Question 38

What will make gravity's pull between two objects stronger?

Accepted Answer

Making one or both objects heavier

Answer

Moving the objects farther apart

Answer

Changing the objects' shapes

Answer

Making one or both objects less dense

Question 39

Which of these is NOT a type of movement?

Accepted Answer

Melting

Answer

Spinning

Answer

Rolling

Answer

Jumping

Question 40

Which rule says that if nothing is pushing or pulling an object, it will stay still or keep moving in the same direction?

Accepted Answer

Newton's First Rule

Answer

Newton's Second Rule

Answer

Newton's Third Rule

Answer

Einstein's Rule

Question 41

What is the difference between speed and velocity?

Accepted Answer

Velocity tells you both how fast and in which direction something is moving

Answer

Speed only tells you how fast something is moving

Answer

Speed and velocity are the same

Answer

Velocity only tells you how long it takes something to move

Question 42

When you roll a ball on the ground, it slows down and eventually stops. Which force causes this to happen?

Accepted Answer

Friction

Answer

Gravity

Answer

Air resistance

Question 43

When you throw a ball, what forces affect its movement and how?

Accepted Answer

Gravity pulls the ball down, and air resistance slows it down.

Answer

Gravity pulls the ball up, and air resistance helps it move forward.

Answer

Only air resistance acts on the ball.

Answer

The ball moves because of its own energy, and no forces act on it.

Question 44

Which of these is NOT a force that can act on an object?

Accepted Answer

Magic

Answer

Push

Answer

Pull

Question 45

If you push an object with more force than you pull it, what will happen?

Accepted Answer

The object will move in the direction of the stronger push

Answer

The object will slow down

Answer

The object will speed up

Question 46

Which of Newton's laws of motion says that an object will stay at rest or moving at a constant speed unless a force acts on it?

Accepted Answer

First Law

Answer

Second Law

Answer

Third Law

Answer

Fourth Law

Question 47

What do we call the unit of force?

Accepted Answer

Newton

Answer

Second

Answer

Kilogram

Answer

Meter

Question 48

Which of these objects has the strongest gravitational pull?

Accepted Answer

Earth

Answer

Moon

Answer

Car

Answer

Ball

Question 49

What is the force that works against the motion of an object as it moves through a fluid?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Buoyancy

Question 50

Which of these is an example of a balanced force?

Accepted Answer

A book resting on a table

Answer

A rocket launching into space

Answer

A ball rolling down a hill

Answer

A child swinging on a swing

Question 51

Which of the following is true about inertia?

Accepted Answer

Objects with more mass have more inertia

Answer

Inertia is not related to mass

Answer

Objects with less mass have more inertia

Question 52

What is the main difference between speed and velocity?

Accepted Answer

Speed measures only how fast an object is moving, while velocity measures both how fast it is moving and in what direction

Answer

Velocity measures only how fast an object is moving, while speed measures both how fast it is moving and in what direction