Newton's Laws of Motion: Interactive Learning Quizzes

Question 1

In Newton's second law of motion, F = ma, what does the letter 'a' stand for?

Accepted Answer

Acceleration

Answer

Velocity

Answer

Displacement

Answer

Momentum

Question 2

If equal forces are applied to two different objects, the object with greater mass will have:

Accepted Answer

Less acceleration

Answer

Greater acceleration

Answer

The same acceleration

Question 3

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

Accepted Answer

A rocket moving forward by pushing exhaust gases backward

Answer

A dog jumping up when you pull on its leash

Answer

A skier gliding down a snow-covered hill

Question 4

Which of the following does NOT affect the acceleration of an object?

Accepted Answer

Volume

Answer

Mass

Answer

Force

Question 5

As a ball is thrown straight up, at the highest point of its path, its acceleration is:

Accepted Answer

Zero

Answer

Equal to the acceleration due to gravity

Answer

Greater than the acceleration due to gravity

Question 6

According to Newton's first law of motion, what happens to an object at rest?

Accepted Answer

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

Answer

It will begin moving at a constant speed.

Question 7

Which of the following is NOT an example of a contact force?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Question 8

The formula for calculating momentum is:

Accepted Answer

Mass x Velocity

Answer

Force x Acceleration

Answer

Kinetic Energy x Time

Question 9

Newton's third law of motion states that for every action, there is:

Accepted Answer

An equal and opposite reaction.

Answer

A greater and opposite reaction.

Answer

A smaller and opposite reaction.

Question 10

Friction always acts:

Accepted Answer

In the opposite direction of motion

Answer

In the same direction of motion

Answer

Perpendicular to the direction of motion

Question 11

According to Newton's second law of motion, acceleration is:

Accepted Answer

Directly proportional to net force and inversely proportional to mass

Answer

Directly proportional to mass and inversely proportional to net force

Answer

Independent of both net force and mass

Question 12

Air resistance is proportional to:

Accepted Answer

The square of the velocity

Answer

The velocity

Answer

The inverse of the velocity

Question 13

Which of the following best describes Newton's first law of motion?

Accepted Answer

An object at rest will stay at rest, and an object in motion will remain in motion with constant velocity unless acted upon by an unbalanced force.

Answer

The acceleration of an object is directly proportional to the net force applied to it.

Answer

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

Question 14

According to Newton's second law of motion, the acceleration of an object is:

Accepted Answer

Mass and force

Answer

Mass and velocity

Answer

Force and velocity

Question 15

Which of the following is NOT a force?

Accepted Answer

Mass

Answer

Gravity

Answer

Friction

Question 16

A car of mass 2000 kg accelerates from rest to 20 m/s in 5 seconds. Calculate the net force acting on the car:

Accepted Answer

8000 N

Answer

4000 N

Answer

16000 N

Question 17

What is the third law of motion also known as?

Accepted Answer

Action-reaction law

Answer

Acceleration law

Answer

Inertia law

Question 18

How does the force of gravity affect the motion of objects near the Earth's surface?

Accepted Answer

It causes objects to accelerate downwards

Answer

It causes objects to accelerate upwards

Answer

It has no effect on the motion of objects

Question 19

Which of the following is a dimensionless quantity?

Accepted Answer

Acceleration

Answer

Force

Answer

Velocity

Answer

Mass

Question 20

How can Newton's laws of motion be used to explain the motion of celestial bodies?

Accepted Answer

They can be used to explain the motion of celestial bodies on a large scale

Answer

They cannot be used to explain the motion of celestial bodies

Answer

They can be used to explain the motion of celestial bodies on a small scale

Question 21

Which of the following scientists first formulated the laws of motion?

Accepted Answer

Isaac Newton

Answer

Albert Einstein

Answer

Galileo Galilei

Question 22

Which of the following is **NOT** one of Newton's Laws of Motion?

Accepted Answer

The acceleration of an object is inversely proportional to the net force acting on it.

Answer

An object at rest remains at rest unless acted on by an unbalanced force.

Answer

An object in motion remains in motion at a constant velocity unless acted on by an unbalanced force.

Answer

The force exerted on an object is equal to the mass of the object multiplied by its acceleration.

Question 23

A car accelerates uniformly from 0 to 60 mph in 12 seconds. What is the car's rate of acceleration?

Accepted Answer

5 mph/s

Answer

2.5 mph/s

Answer

10 mph/s

Answer

60 mph/s

Question 24

Which of the following factors does **NOT** affect the force of friction between two surfaces?

Accepted Answer

The temperature of the surfaces

Answer

The roughness of the surfaces

Answer

The normal force between the surfaces

Answer

The area of contact between the surfaces

Question 25

When you push an object, you exert a force on it. According to Newton's Third Law, what is the object's response to this action?

Accepted Answer

It exerts an equal force in the opposite direction to your push.

Answer

It exerts an equal force in the same direction you pushed.

Answer

It exerts a force that is twice as strong in the same direction you pushed.

Answer

It does not exert any force in response.

Question 26

How does the mass of an object affect its acceleration when a constant force is applied?

Accepted Answer

The acceleration decreases as mass increases.

Answer

The acceleration increases as mass increases.

Answer

The acceleration remains the same regardless of mass.

Answer

The acceleration is inversely proportional to the square of the mass.

Question 27

How can you effectively reduce the force of friction between two surfaces?

Accepted Answer

Applying a lubricant to the surfaces.

Answer

Making the surfaces rougher.

Answer

Increasing the weight of the objects on the surfaces.

Answer

Decreasing the area of contact between the surfaces.

Question 28

Which of the following devices primarily operates based on the principles of Newton's Third Law?

Accepted Answer

Rocket

Answer

Windmill

Answer

Solar panel

Answer

Battery

Question 29

A ball is thrown up into the air. At the highest point of its trajectory, which Newton's law is primarily responsible for the ball's motion?

Accepted Answer

First law

Answer

Second law

Answer

Third law

Question 30

Which of the following is the unit for measuring force?

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Question 31

A car travels at a constant speed. Which of the following statements describes the forces acting on the car?

Accepted Answer

The net force is zero.

Answer

The friction force is stronger than the propelling force.

Answer

The gravitational force is stronger than the air resistance force.

Question 32

A 10 N force is applied to a 2 kg object. What is the object's acceleration?

Accepted Answer

1 m/s²

Answer

0.5 m/s²

Answer

2 m/s²

Question 33

Which of the following is a vector quantity?

Accepted Answer

Acceleration

Answer

Speed

Answer

Temperature

Question 34

According to Newton's first law of motion, an object at rest stays at rest or keeps moving at a constant velocity unless acted upon by an unbalanced force.

Accepted Answer

True

Answer

False

Question 35

The acceleration of an object is proportional to the net force acting on the object and is inversely proportional to the object's mass.

Accepted Answer

True

Answer

False

Question 36

Which of the following is not a type of force?

Accepted Answer

Kinetic force

Answer

Contact force

Answer

Field force

Answer

Elastic force

Question 37

Newton's third law of motion states that for every action, there is an equal and opposite reaction force.

Accepted Answer

True

Answer

False

Question 38

Which of the following is an example of a force that keeps an object moving in a circular path?

Accepted Answer

Tension force

Answer

Gravitational force

Answer

Frictional force

Answer

Magnetic force

Question 39

A car accelerates from rest to 60 km/h in 10 seconds. What is its acceleration in m/s²?

Accepted Answer

1.67 m/s²

Answer

6 m/s²

Answer

10 m/s²

Answer

60 m/s²

Question 40

At the highest point of its trajectory, the velocity of a vertically thrown ball is:

Accepted Answer

Zero

Answer

Maximum

Answer

Minimum

Answer

Constant

Question 41

Which of the following states that an object at rest will remain at rest unless acted upon by an external force?

Accepted Answer

Newton's First Law

Answer

Newton's Second Law

Answer

Newton's Third Law

Question 42

According to Newton's Second Law, the force acting on an object is directly proportional to its:

Accepted Answer

Mass and acceleration

Answer

Mass and velocity

Answer

Velocity and acceleration

Question 43

Which law explains that for every action, there is an equal and opposite reaction?

Accepted Answer

Newton's Third Law

Answer

Newton's First Law

Answer

Newton's Second Law

Question 44

A car travelling at a constant speed on a straight road is an example of:

Accepted Answer

Newton's First Law

Answer

Newton's Second Law

Answer

Newton's Third Law

Question 45

The acceleration of an object dropped from a height is:

Accepted Answer

Independent of its mass

Answer

Proportional to its mass

Answer

Inversely proportional to its mass

Question 46

Which of the following is a vector quantity?

Accepted Answer

Acceleration

Answer

Speed

Answer

Mass

Question 47

Newton's laws of motion form the foundation of:

Accepted Answer

Classical mechanics

Answer

Quantum mechanics

Answer

Electromagnetism

Question 48

Which of the following best describes Newton's First Law of Motion?

Accepted Answer

Objects at rest stay at rest and moving objects keep moving with the same speed and direction unless acted upon by an outside force.

Answer

Force equals mass multiplied by velocity.

Answer

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

Question 49

Which of the following factors does NOT affect the strength of friction?

Accepted Answer

Temperature

Answer

Surface roughness

Answer

Contact area

Answer

Normal force

Question 50

A ball is thrown vertically upward at a speed of 10 m/s. What is its velocity at the highest point of its trajectory?

Accepted Answer

0 m/s

Answer

5 m/s

Answer

15 m/s

Answer

10 m/s

Question 51

Which of the following is NOT a unit of force?

Accepted Answer

Kilogram

Answer

Pound

Answer

Newton

Answer

Pascal

Question 52

A 2 kg block is pulled with a force of 15 N. What is its acceleration?

Accepted Answer

7.5 m/s²

Answer

2 m/s²

Answer

10 m/s²

Answer

15 m/s²