Master Newton's Laws of Motion: Interactive Learning Quizzes

Question 1

According to Newton's second law of motion, which physical quantity is directly proportional to the net force acting on an object?

Accepted Answer

Acceleration of the object

Answer

Mass of the object

Answer

Velocity of the object

Question 2

According to Newton's Second Law of Motion, the force acting on an object is directly proportional to its mass and acceleration. Which equation accurately represents this law?

Accepted Answer

F = ma

Answer

F = m / a

Answer

a = m / F

Answer

m = F / a

Question 3

According to Newton's first law of motion, an object at rest will:

Accepted Answer

Remain at rest unless acted upon by an external net force.

Answer

Move with a constant velocity.

Answer

Accelerate at a uniform rate.

Answer

Experience a change in momentum.

Question 4

In the equation F = ma, force (F) is directly proportional to:

Accepted Answer

Mass (m) and acceleration (a).

Answer

Mass (m) only.

Answer

Acceleration (a) only.

Answer

The square of acceleration (a^2).

Question 5

In a closed system, the total momentum of the system:

Accepted Answer

Remains constant, regardless of internal forces.

Answer

Increases if external forces act on the system.

Answer

Decreases if internal forces act on the system.

Answer

Becomes zero if the system comes to a halt.

Question 6

The recoil of a gun is an example of:

Accepted Answer

Newton's third law of motion.

Answer

Newton's first law of motion.

Answer

Newton's second law of motion.

Answer

Conservation of momentum.

Question 7

The range of a projectile launched at an angle to the horizontal depends primarily on:

Accepted Answer

Initial velocity and launch angle.

Answer

Mass of the projectile.

Answer

Gravitational acceleration.

Answer

Air resistance.

Question 8

Which law of motion states that the rate of change of momentum of an object is directly proportional to the net force acting on the object?

Accepted Answer

Second law of motion

Answer

First law of motion

Answer

Third law of motion

Answer

Law of universal gravitation

Question 9

Newton's third law of motion states that:

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 external force.

Answer

The rate of change of momentum of an object is directly proportional to the net force acting on the object.

Answer

The force of gravity between two objects is directly proportional to their masses and inversely proportional to the square of the distance between them.

Question 10

Which of the following is the SI unit of force?

Accepted Answer

Newton

Answer

Kilogram

Answer

Meter

Answer

Second

Question 11

A car traveling at a constant speed of 60 mph experiences a force due to air resistance. According to Newton's first law, this force:

Accepted Answer

Is balanced by the force exerted by the engine

Answer

Is zero

Answer

Causes the car to slow down

Answer

Causes the car to accelerate

Question 12

The momentum of a system remains constant if there are no external forces acting on the system. This is known as the:

Accepted Answer

Law of conservation of momentum

Answer

Law of conservation of energy

Answer

Law of conservation of angular momentum

Answer

First law of thermodynamics

Question 13

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

Accepted Answer

Air resistance

Answer

Friction

Answer

Tension

Answer

Normal force

Question 14

Which of the following accurately states Newton's first law of motion?

Accepted Answer

An object remains at rest or moves at constant velocity unless acted upon by an external force.

Answer

The acceleration of an object is proportional to the net force applied and inversely proportional to its mass.

Answer

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

Question 15

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

Accepted Answer

Gravitational force

Answer

Frictional force

Answer

Tension force

Question 16

The mathematical expression for Newton's second law of motion is:

Accepted Answer

F = ma

Answer

F = mv

Answer

F = m/a

Question 17

Mass and weight are distinct concepts. Mass refers to the:

Accepted Answer

Amount of matter in an object

Answer

Gravitational force acting on an object

Answer

Force exerted by an object on a supporting surface

Question 18

A limitation of Newton's laws of motion is that they:

Accepted Answer

Do not apply to objects moving at relativistic speeds

Answer

Do not account for frictional forces

Answer

Are only applicable to rigid bodies

Question 19

A 20.0-kilogram object experiences a net force of 50.0 newtons. What is the acceleration of the object?

Accepted Answer

2.50 m/s²

Answer

0.400 m/s²

Answer

5.00 m/s²

Answer

12.5 m/s²

Question 20

The SI unit of force is the:

Accepted Answer

Newton

Answer

Joule

Answer

Kilogram

Answer

Meter

Question 21

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

Accepted Answer

Force

Answer

Momentum

Answer

Acceleration

Answer

Velocity

Question 22

A block is sliding down an inclined plane. The force of gravity acting on the block is:

Accepted Answer

At an angle to the incline

Answer

Parallel to the incline

Answer

Perpendicular to the incline

Answer

Zero

Question 23

The momentum of an object is:

Accepted Answer

Mass times velocity

Answer

Force times time

Answer

Energy times displacement

Answer

Acceleration times mass

Question 24

Which of the following is a vector quantity?

Accepted Answer

Velocity

Answer

Mass

Answer

Time

Answer

Temperature

Question 25

Which of the following statements best describes the relationship between force, mass, and acceleration, as defined by Newton's Second Law of Motion?

Accepted Answer

Acceleration is directly proportional to the force applied and inversely proportional to the mass of the object.

Answer

Force is directly proportional to the mass of the object and inversely proportional to its acceleration.

Answer

Acceleration is independent of both the force applied and the mass of the object.

Answer

Force is always greater than the acceleration of the object.

Question 26

A 50 kg person is standing on a scale in an elevator that is accelerating upward at 2 m/s^2. What is the reading on the scale?

Accepted Answer

600 N

Answer

500 N

Answer

700 N

Answer

800 N

Question 27

Which among the following is NOT a unit of force in the SI system?

Accepted Answer

Joule (J)

Answer

Newton (N)

Answer

Kilogram (kg)

Answer

Pascal (Pa)

Question 28

Which of Newton's laws of motion states that the acceleration of an object is proportional to the net force acting on it?

Accepted Answer

Second law

Answer

First law

Answer

Third law

Answer

Law of Universal Gravitation

Question 29

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

Accepted Answer

Friction

Answer

Gravity

Answer

Tension

Answer

Elastic force

Question 30

Which of the following is NOT an example of Newton's third law in action?

Accepted Answer

A heavy object resting on a stationary elevator

Answer

A rocket propelling itself forward

Answer

A person jumping off the ground

Answer

A baseball bat hitting a baseball

Question 31

Which of the following is the correct SI unit of work?

Accepted Answer

Joule

Answer

Newton

Answer

Kilogram

Question 32

A ball is thrown horizontally with a velocity of 10 m/s. What is the vertical component of its velocity when it reaches its maximum height?

Accepted Answer

0 m/s

Answer

5 m/s

Answer

10 m/s

Question 33

In the context of Newton's second law of motion, which of the following is the correct formula that defines the relationship between force, mass, and acceleration?

Accepted Answer

F = ma

Answer

F = kx

Answer

F = mv^2

Answer

F = 1/2mv^2

Question 34

When an object is in equilibrium, which of the following statements accurately describes its state?

Accepted Answer

The net force acting on the object is zero.

Answer

The object is moving at a constant speed.

Answer

The object is accelerating uniformly.

Answer

The object is experiencing an unbalanced force.

Question 35

In a collision between two objects, which of the following quantities remains constant, according to Newton's laws of motion?

Accepted Answer

Momentum

Answer

Kinetic energy

Answer

Potential energy

Answer

Velocity

Question 36

Which of the following is an example of a force that acts between objects without requiring physical contact?

Accepted Answer

Gravity

Answer

Friction

Answer

Tension

Answer

Normal force

Question 37

A car accelerates uniformly from rest, reaching a speed of 30 m/s in 6 seconds. What is the magnitude of its acceleration?

Accepted Answer

5 m/s^2

Answer

2 m/s^2

Answer

10 m/s^2

Answer

15 m/s^2

Question 38

Which of the following physical quantities is a vector, meaning it has both magnitude and direction?

Accepted Answer

Acceleration

Answer

Mass

Answer

Speed

Answer

Temperature

Question 39

According to Newton's third law of motion, for every action, there is an equal and:

Accepted Answer

Opposite

Answer

Similar

Answer

Perpendicular

Answer

Parallel

Question 40

Which of the following accurately states Newton's first law of motion?

Accepted Answer

An object at rest stays at rest, and an object in motion continues to move at a constant velocity.

Answer

An object's acceleration directly corresponds to the net force.

Answer

Every action triggers an equal and opposite reaction.

Question 41

Which of the following aptly illustrates Newton's third law of motion?

Accepted Answer

A rocket propels forward by releasing exhaust gases.

Answer

A stationary book rests on a table.

Answer

A car speeds up on a straight road.

Question 42

Identify the vector quantity:

Accepted Answer

Force

Answer

Mass

Answer

Volume

Question 43

The SI unit of force is:

Accepted Answer

Newton

Answer

Joule

Answer

Watt

Question 44

Which unit in the SI system is derived?

Accepted Answer

Pascal

Answer

Meter

Answer

Kilogram

Question 45

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

Accepted Answer

Directly proportional to the applied force.

Answer

Inversely proportional to the applied force.

Answer

Directly proportional to the object's mass.

Answer

Inversely proportional to the object's mass.

Question 46

Newton's third law of motion states that:

Accepted Answer

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

Answer

The magnitude of the action force is always greater than the magnitude of the reaction force.

Answer

The direction of the action force is always perpendicular to the direction of the reaction force.

Answer

The reaction force always occurs before the action force.

Question 47

Friction is a force that:

Accepted Answer

Can either oppose or assist the motion of an object.

Answer

Always opposes the motion of an object.

Answer

Always assists the motion of an object.

Answer

Is only present when two objects are in contact.

Question 48

When a ball is thrown vertically upward, its velocity at the highest point of its trajectory is:

Accepted Answer

Zero

Answer

Equal to its initial velocity.

Answer

Greater than its initial velocity.

Answer

Less than its initial velocity.

Question 49

The moment of inertia of an object is a measure of its:

Accepted Answer

Rotational inertia

Answer

Linear momentum

Answer

Angular momentum

Answer

Translational inertia

Question 50

Work is done when:

Accepted Answer

A force is applied to an object and the object moves in the direction of the force.

Answer

A force is applied to an object but the object does not move.

Answer

An object moves but no force is applied to it.

Answer

An object is at rest and a force is applied to it.

Question 51

Which interaction demonstrates Newton's third law (action-reaction pairs)?

Accepted Answer

A rocket propelling itself forward

Answer

A person pushing a wall

Answer

A book resting on a table

Answer

A ball rolling down a hill

Question 52

Which of the following is not a consequence of Newton's laws of motion?

Accepted Answer

The total energy of a closed system is always decreasing.

Answer

Objects in motion tend to remain in motion.

Answer

The momentum of an isolated system is conserved.

Answer

Forces occur in pairs.

Question 53

A ball is thrown vertically upward with an initial velocity of 20 m/s. Neglecting air resistance, what is the velocity of the ball at the highest point of its trajectory?

Accepted Answer

0 m/s

Answer

10 m/s

Answer

20 m/s

Answer

30 m/s

Question 54

The rotational equivalent of Newton's second law is:

Accepted Answer

Torque = moment of inertia × angular acceleration

Answer

Force = mass × acceleration

Answer

Impulse = change in momentum

Answer

Work = energy

Question 55

An object with a mass of 5 kilograms is moving at a velocity of 10 meters per second. What is the momentum of the object?

Accepted Answer

50 kilograms meters per second

Answer

5 kilograms meters per second

Answer

0.5 kilograms meters per second

Answer

0.05 kilograms meters per second

Question 56

If a force of 20 Newtons is applied to an object with a mass of 10 kilograms, what will be the object's acceleration?

Accepted Answer

2 meters per second squared

Answer

0.5 meters per second squared

Answer

20 meters per second squared

Answer

10 meters per second squared

Question 57

What is the SI unit of force?

Accepted Answer

Newton

Answer

Meter

Answer

Kilogram

Answer

Second

Question 58

According to Newton's second law, what is the relationship between force, mass, and acceleration?

Accepted Answer

F = ma

Answer

F = m/a

Answer

F = a/m

Answer

F = ma²

Question 59

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

Accepted Answer

True

Answer

False

Question 60

The rate of change of momentum of an object is directly proportional to the net force applied to the object.

Accepted Answer

True

Answer

False

Question 61

A body moving in a circular path with a constant speed experiences a centripetal force directed towards the center of the circle.

Accepted Answer

True

Answer

False

Question 62

Work done by a conservative force is path independent, meaning it depends only on the initial and final positions of the object.

Accepted Answer

True

Answer

False

Question 63

According to Newton's first law of motion, an object will maintain its state of rest or uniform motion in a straight line unless acted upon by an external force?

Accepted Answer

True

Answer

False

Question 64

A 10 kg object is moving with a velocity of 5 m/s. What is its momentum?

Accepted Answer

50 kg-m/s

Answer

100 kg-m/s

Answer

5 kg-m/s

Answer

105 kg-m/s