Force and Motion: Interactive Learning Quizzes for Sixth Grade Science

Question 1

A car is traveling at a steady speed on a flat road. Which of the following is true about the net force acting on the car?

Accepted Answer

It is zero.

Answer

It is greater than zero.

Answer

It is less than zero.

Answer

It cannot be determined from the information given.

Question 2

What force causes a rolling ball to slow down and stop on the ground?

Accepted Answer

Friction

Answer

Gravity

Answer

Air resistance

Answer

Inertia

Question 3

According to Newton's First Law of Motion, an object in motion will

Accepted Answer

Remain in motion unless acted upon by an unbalanced force

Answer

Come to a stop unless acted upon by an unbalanced force

Answer

Change its direction unless acted upon by an unbalanced force

Answer

Accelerate unless acted upon by an unbalanced force

Question 4

Which of the following is an example of an action-reaction pair of forces?

Accepted Answer

Kicking a soccer ball

Answer

Pushing a book across a table

Answer

A bird flying through the air

Answer

A magnet attracting a piece of metal

Question 5

A force of 20 N is applied to an object at rest. The object has a mass of 4 kg. What is the velocity of the object after 2 seconds?

Accepted Answer

10 m/s

Answer

5 m/s

Answer

15 m/s

Answer

20 m/s

Question 6

Which of the following is a vector quantity?

Accepted Answer

Displacement

Answer

Speed

Answer

Mass

Answer

Volume

Question 7

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

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Applied force

Question 8

Which of the following is a force?

Accepted Answer

Gravity

Answer

Heat

Answer

Sound

Answer

Light

Question 9

According to Newton's second law of motion, how are force and acceleration related?

Accepted Answer

Force is directly proportional to acceleration.

Answer

Force is inversely proportional to acceleration.

Answer

Force is independent of acceleration.

Answer

Acceleration is directly proportional to force.

Question 10

Which of the following factors does NOT affect the gravitational force between two objects?

Accepted Answer

Volume of the objects

Answer

Mass of the objects

Answer

Distance between the objects

Answer

Presence of other objects

Question 11

Which of the following is a common source of friction?

Accepted Answer

Contact between two surfaces

Answer

Air resistance

Answer

Gravity

Answer

Magnetic force

Question 12

What is the third law of motion?

Accepted Answer

For every action, there is an equal and opposite reaction.

Answer

An object at rest will remain at rest unless acted upon by an unbalanced force.

Answer

Force is equal to mass times acceleration.

Answer

Gravity is the force that attracts objects with mass towards each other.

Question 13

Which of the following is an example of centripetal force?

Accepted Answer

The force that keeps a car moving in a circular path

Answer

The force that pulls a book down to the ground

Answer

The force that pushes a ball up into the air

Answer

The force that causes a balloon to float

Question 14

Which equation correctly describes Newton's Second Law of Motion, relating force, mass, and acceleration?

Accepted Answer

Force equals mass times acceleration: F = m * a

Answer

Force equals mass divided by acceleration: F = m / a

Answer

Force equals acceleration divided by mass: F = a / m

Question 15

Which of the choices below is NOT a type of force?

Accepted Answer

Movement

Answer

Gravity

Answer

Friction

Answer

Air resistance

Question 16

According to Newton's first law of motion, an object at rest will stay at rest unless it is acted on by a force that is not balanced.

Accepted Answer

True

Answer

False

Answer

Sometimes true

Question 17

Which of the following examples demonstrates what is known as a contact force?

Accepted Answer

Friction

Answer

Gravity

Answer

Air resistance

Answer

Magnetic force

Question 18

In a system where forces are considered balanced, the net force that acts on an object is zero.

Accepted Answer

True

Answer

False

Answer

Sometimes true

Question 19

In a game of tug-of-war, two groups of individuals pull on a rope moving in opposite directions with equal force. What is likely to happen to the rope?

Accepted Answer

The rope will stay perfectly still.

Answer

The rope will begin moving in the direction of one of the teams.

Answer

The rope will snap.

Answer

The rope will speed up.

Question 20

Which of the following is NOT a type of force?

Accepted Answer

Velocity

Answer

Gravity

Answer

Friction

Answer

Magnetism

Question 21

According to Newton's First Law of Motion, what will happen to an object at rest?

Accepted Answer

It will remain at rest until acted upon by an outside force.

Answer

It will accelerate in a straight line.

Answer

It will move in a circular path.

Answer

It will experience a change in speed.

Question 22

In a balanced force system, what is the net force acting on an object?

Accepted Answer

Zero

Answer

Non-zero

Answer

Equal to the force of gravity

Answer

Equal to the sum of the individual forces

Question 23

What happens to the speed of an object when the force applied to it increases?

Accepted Answer

Increases

Answer

Decreases

Answer

Stays the same

Answer

Becomes zero

Question 24

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

Accepted Answer

Friction

Answer

Gravity

Answer

Magnetism

Answer

Electrostatic force

Question 25

Which of the following is the unit of force?

Accepted Answer

Newton

Answer

Meter

Answer

Kilogram

Answer

Second

Question 26

In an experiment where an object is free-falling, what is the acceleration due to gravity?

Accepted Answer

Independent of the mass of the object

Answer

Dependent on the mass of the object

Answer

Zero

Answer

Equal to the speed of light

Question 27

Which of the following is NOT a factor that affects the amount of friction between two surfaces?

Accepted Answer

Strength of the magnetic field

Answer

Surface roughness

Answer

Normal force

Answer

Temperature

Question 28

An object is at rest on a frictionless surface. A force of 10 N is applied to the right. What will happen to the object?

Accepted Answer

It moves to the right.

Answer

It stays at rest.

Answer

It moves to the left.

Answer

It moves up.

Question 29

Which of the following is NOT a scientifically recognized type of force?

Accepted Answer

Mental force

Answer

Gravitational force

Answer

Friction

Answer

Magnetic force

Question 30

Which of the following is NOT a type of physical force?

Accepted Answer

Thermal energy

Answer

Gravitational force

Answer

Magnetic force

Answer

Frictional force

Question 31

According to Newton's first law of motion, an object will remain at rest or in uniform motion unless acted upon by an unbalanced force.

Accepted Answer

True

Answer

False

Question 32

Friction is a force that:

Accepted Answer

Opposes the motion of objects in contact

Answer

Causes the motion of objects

Answer

Increases the velocity of objects

Answer

Decreases the acceleration of objects

Question 33

A car traveling at a constant speed is:

Accepted Answer

Neither speeding up nor slowing down

Answer

Speeding up

Answer

Slowing down

Answer

Moving in a circular path

Question 34

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

Accepted Answer

Newton

Answer

Joule

Answer

Kilogram

Answer

Watt

Question 35

A bowling ball has a greater mass than a soccer ball. If both balls are pushed with the same amount of force, which ball will have a smaller acceleration?

Accepted Answer

Bowling ball

Answer

Soccer ball

Answer

Both balls will have the same acceleration

Answer

Cannot be determined

Question 36

In a system of balanced forces, the net force acting on an object is:

Accepted Answer

Zero

Answer

Positive

Answer

Negative

Answer

Cannot be determined

Question 37

Which of the following is an example of a force that acts when two objects are touching?

Accepted Answer

Frictional force

Answer

Gravitational force

Answer

Electrical force

Answer

Magnetic force

Question 38

Who is credited with first proposing the law that describes the force of attraction between objects in the universe?

Accepted Answer

Isaac Newton

Answer

Galileo Galilei

Answer

Albert Einstein

Answer

Johannes Kepler

Question 39

A school bus is at a stop sign. When the light turns green, the bus driver presses the gas pedal, and the bus starts moving. Which law of motion explains why the bus starts moving?

Accepted Answer

An object at rest will stay at rest unless a force acts on it.

Answer

The faster an object is moving, the greater the force needed to stop it.

Answer

For every action, there is an equal and opposite reaction.

Answer

The heavier an object is, the faster it will fall.

Question 40

Four objects are dropped from the same height at the same time: a ball bearing, a piece of paper, a marble, and a feather. Which object will experience the most air resistance due to its larger surface area?

Accepted Answer

Piece of paper

Answer

Ball bearing

Answer

Marble

Answer

Feather

Question 41

Which is the SI unit of force?

Accepted Answer

Newton (N)

Answer

Kilogram (kg)

Answer

Second (s)

Answer

Meter (m)

Question 42

What is the SI unit of force?

Accepted Answer

Newton (N)

Answer

Watt (W)

Answer

Kilogram (kg)

Answer

Joule (J)

Question 43

State Newton's first law of motion.

Accepted Answer

An object at rest will remain at rest unless acted upon by an unbalanced force.

Answer

Force equals mass times acceleration.

Answer

Action and reaction forces are equal and opposite.

Answer

Momentum is conserved in a closed system.

Question 44

Which force attracts objects towards each other?

Accepted Answer

Gravitational force

Answer

Magnetic force

Answer

Electrical force

Answer

Frictional force

Question 45

What is the force that opposes the motion of an object moving through a fluid?

Accepted Answer

Drag force

Answer

Gravitational force

Answer

Magnetic force

Answer

Normal force

Question 46

How can the speed of an object be increased?

Accepted Answer

By applying a greater force in the direction of motion

Answer

By changing the direction of motion

Answer

By increasing the frictional force

Answer

By reducing the mass of the object

Question 47

What is true about an object moving with a constant velocity?

Accepted Answer

Zero net force is acting on it

Answer

A force is pushing it forward

Answer

It has an acceleration

Answer

A force is pulling it backward

Question 48

Which quantity has both magnitude and direction?

Accepted Answer

Force

Answer

Temperature

Answer

Mass

Answer

Time

Question 49

What does the law of conservation of momentum state?

Accepted Answer

The total momentum of a system remains constant if no external forces act on it.

Answer

Only true for isolated systems

Answer

Action and reaction forces are equal and opposite.

Answer

Force equals mass times acceleration.

Question 50

Which factor does NOT affect the amount of friction between two surfaces?

Accepted Answer

Temperature

Answer

Force applied

Answer

Coefficient of friction

Answer

Surface roughness

Question 51

A car is moving at a constant speed on a straight road. What is the net force acting on the car?

Accepted Answer

Zero

Answer

A force pushing it forward

Answer

An upward force

Answer

A force pulling it backward