Motion and Forces: Interactive Learning Quizzes for 4th Grade Science

Question 1

Which force makes objects move towards each other, even when they are not touching?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Question 2

Which of the following is **not** a force?

Accepted Answer

Temperature

Answer

Friction

Answer

Gravity

Answer

Magnetism

Question 3

What is NOT a force?

Accepted Answer

Movement

Answer

Gravity

Answer

Friction

Answer

Magnetism

Question 4

Something that is not moving will stay not moving unless a force is used.

Accepted Answer

True

Answer

False

Answer

Sometimes

Answer

Never

Question 5

What is the correct unit for measuring force?

Accepted Answer

Newtons

Answer

Joules

Answer

Meters

Answer

Kilograms

Question 6

Which is an example of balanced forces?

Accepted Answer

A book sitting on a table

Answer

A car driving forward

Answer

A ball rolling down a hill

Answer

A person pushing a door open

Question 7

What makes objects fall?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Wind

Question 8

Which force can make an object speed up?

Accepted Answer

A push

Answer

Friction

Answer

Gravity

Question 9

Which of these is a type of force?

Accepted Answer

Gravity

Answer

Heat

Answer

Light

Answer

Sound

Question 10

What happens to an object when you apply force to it?

Accepted Answer

It moves

Answer

It changes shape

Answer

It breaks

Answer

Nothing happens

Question 11

Which force pulls objects towards the Earth?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Electrical force

Question 12

Which of these is an example of balanced forces?

Accepted Answer

Pushing and pulling an object with equal force

Answer

Kicking a soccer ball

Answer

Dragging a box across the floor

Answer

Lifting a book

Question 13

What is the direction of the force of gravity?

Accepted Answer

Towards the center of the Earth

Answer

Upwards

Answer

Downwards

Answer

Sideways

Question 14

What is the unit of force in the US customary system?

Accepted Answer

Pound

Answer

Newton

Answer

Kilogram

Answer

Gram

Question 15

Which of these is an example of a contact force?

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Electrical force

Question 16

Which of the following describes an object that is moving in a curved path?

Accepted Answer

Curvilinear motion

Answer

Linear motion

Answer

Gravity motion

Answer

Oscillatory motion

Question 17

What is the force called that pulls objects towards each other?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Electrostatic force

Question 18

What happens to an object's speed when a greater force is applied to it?

Accepted Answer

It increases

Answer

It decreases

Answer

It stays the same

Answer

It changes direction

Question 19

What is the term for an object's resistance to changing its motion?

Accepted Answer

Inertia

Answer

Momentum

Answer

Weight

Answer

Mass

Question 20

Which of these is an example of a balanced force?

Accepted Answer

A book sitting on a table

Answer

A ball rolling down a hill

Answer

A car speeding up

Answer

A person jumping in the air

Question 21

What is the International System (SI) unit of force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 22

Which type of motion involves an object moving in a straight line?

Accepted Answer

Linear motion

Answer

Circular motion

Answer

Rotational motion

Answer

Oscillating motion

Question 23

When a force is applied to an object, what happens?

Accepted Answer

It changes speed, direction, or both

Answer

It vanishes

Answer

It becomes heavier

Answer

Nothing happens

Question 24

Which example demonstrates a balanced force?

Accepted Answer

Pushing a wall with equal force from both sides

Answer

Kicking a ball

Answer

Pulling on a rope with unequal force from both ends

Answer

Lifting a heavy object

Question 25

What keeps objects on the ground?

Accepted Answer

Gravity

Answer

Friction

Answer

Air resistance

Answer

Magnetism

Question 26

What happens to an object thrown upward?

Accepted Answer

It stops at the highest point and falls

Answer

It keeps moving upward forever

Answer

It speeds up as it moves upward

Answer

It slows down as it moves upward

Question 27

What unit is used to measure force in the United States?

Accepted Answer

Pounds

Answer

Newtons

Answer

Kilograms

Answer

Joules

Question 28

What is the unit used to measure force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Pound

Answer

Joule

Question 29

Which of these forces pulls objects towards each other?

Accepted Answer

Gravity

Answer

Friction

Answer

Magnetism

Answer

Buoyancy

Question 30

How does gravity affect how objects move?

Accepted Answer

It pulls them towards the ground.

Answer

It pushes them away from the ground.

Answer

It makes them float in the air.

Answer

It doesn't affect how they move.

Question 31

Which object has the greatest force of gravity?

Accepted Answer

A planet

Answer

A toy car

Answer

A person

Answer

A baseball

Question 32

What is the difference between speed and velocity?

Accepted Answer

Speed describes how fast an object is moving, while velocity describes how fast and in what direction an object is moving.

Answer

Speed describes how far an object moves, while velocity describes how fast an object moves.

Answer

Speed and velocity are the same thing.

Answer

Speed describes how an object moves, while velocity describes how far an object is moving.

Question 33

What is the formula for calculating the speed of an object?

Accepted Answer

Speed equals distance divided by time.

Answer

Speed equals time divided by distance.

Answer

Speed equals force divided by distance.

Answer

Speed equals distance multiplied by time.

Question 34

What does Newton's Third Law of Motion state about forces?

Accepted Answer

Every action has an equal and opposite reaction.

Answer

Forces are always bigger than the reaction force.

Answer

Forces only happen between two objects.

Question 35

What is the unit of measurement for force?

Accepted Answer

Newtons

Answer

Kilograms

Answer

Meters

Answer

Seconds

Question 36

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

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Electrostatic force

Question 37

What is the direction of the force of gravity?

Accepted Answer

Downward

Answer

Upward

Answer

Sideways

Answer

In all directions

Question 38

What is the relationship between force and motion?

Accepted Answer

Force causes motion.

Answer

Motion causes force.

Answer

Force and motion are unrelated.

Answer

Force only affects objects at rest.

Question 39

Which of the following is an example of Newton's first law of motion?

Accepted Answer

A book sitting on a table

Answer

A ball rolling down a hill

Answer

A car braking to a stop

Answer

A rocket launching into space

Question 40

What is the difference between speed and velocity?

Accepted Answer

Speed is a scalar quantity, while velocity is a vector quantity.

Answer

Speed is a vector quantity, while velocity is a scalar quantity.

Answer

Speed and velocity are the same thing.

Answer

Speed is measured in meters per second, while velocity is measured in kilometers per hour.

Question 41

Friction is often described as a force that opposes motion. However, this definition is incomplete. Why?

Accepted Answer

Friction can also help objects move smoothly.

Answer

Friction can only be helpful, never harmful.

Answer

Friction is always a negative force, slowing down all motion.

Question 42

What force pulls objects towards the ground?

Accepted Answer

Gravity

Answer

Tension

Answer

Friction

Answer

Magnetism

Question 43

Which type of motion describes an object moving in a straight line at a constant speed?

Accepted Answer

Uniform motion

Answer

Periodic motion

Answer

Accelerated motion

Question 44

Which is the unit of force?

Accepted Answer

Newton (N)

Answer

Gram (g)

Answer

Meter (m)

Question 45

When a person pushes a box with a force of 100 newtons, what is the force exerted back on the person by the box?

Accepted Answer

100 newtons

Answer

200 newtons

Answer

50 newtons

Question 46

Air resistance acts in which direction relative to the motion of an object?

Accepted Answer

Opposite direction

Answer

Same direction

Answer

Perpendicular direction

Question 47

If a car traveling at 70 miles per hour applies its brakes, what will happen to the car's motion?

Accepted Answer

Decelerate

Answer

Accelerate

Answer

Maintain the same speed