Newton's Laws of Motion: Interactive Learning Quizzes for Biomechanics

Question 1

Which of Newton's Laws of Motion expresses the mathematical relationship between force, mass, and acceleration?

Accepted Answer

Second Law

Answer

First Law

Answer

Third Law

Question 2

According to Newton's Second Law of Motion, how can you calculate the acceleration of a cyclist resulting from the force they apply to the pedals?

Accepted Answer

Divide the force applied by the cyclist's mass.

Answer

Multiply the cyclist's mass by the force applied.

Answer

Subtract the force applied from the cyclist's mass.

Answer

Square the force applied and divide by the cyclist's mass.

Question 3

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

Accepted Answer

Directly proportional to the net force acting on it and inversely proportional to the mass of the object.

Answer

Directly proportional to the mass of the object and inversely proportional to the net force acting on it.

Answer

Equal to the mass of the object multiplied by the net force acting on it.

Answer

Equal to the net force acting on it multiplied by the mass of the object.

Question 4

A force of 50 Newtons is applied to a body of mass 10 kilograms. What is the acceleration produced?

Accepted Answer

2 m/s²

Answer

0.2 m/s²

Answer

5 m/s²

Answer

10 m/s²

Question 5

The relationship between force, displacement, and work is that:

Accepted Answer

Work done is equal to force applied multiplied by displacement in the direction of the force.

Answer

Work done is equal to force applied multiplied by displacement perpendicular to the force.

Answer

Work done is equal to displacement multiplied by force applied.

Answer

Work done is equal to force applied divided by displacement.

Question 6

Which of the following factors does NOT affect the moment of inertia of a body?

Accepted Answer

Angular velocity of the body

Answer

Mass of the body

Answer

Distribution of mass within the body

Answer

Shape of the body

Question 7

What is the angular acceleration of an object rotating with a constant angular velocity?

Accepted Answer

Zero

Answer

Constant

Answer

Increasing

Answer

Decreasing

Question 8

Which of the following is the rotational analogue of Newton's second law?

Accepted Answer

Torque = moment of inertia x angular acceleration

Answer

Torque = mass x angular acceleration

Answer

Torque = force x angular displacement

Answer

Torque = moment of inertia x angular velocity

Question 9

According to the principle of conservation of angular momentum, the total angular momentum of a system remains constant:

Accepted Answer

Provided no external torque acts on the system.

Answer

Regardless of whether external torque acts on the system.

Answer

Only if the system is rotating with constant angular velocity.

Answer

Only if the system has a constant moment of inertia.

Question 10

Which statement is not a fundamental principle of Newton's Laws of Motion?

Accepted Answer

The total momentum of a closed system remains constant.

Answer

An object at rest stays at rest, and an object in motion stays in motion unless acted upon by an unbalanced force.

Answer

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

Question 11

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

Accepted Answer

F = m * a

Answer

F = m * a^2

Answer

F = a^2 / m

Question 12

Which scientist is credited with first proposing the concept of inertia?

Accepted Answer

Galileo Galilei

Answer

Aristotle

Answer

Isaac Newton

Question 13

Which of Newton's Laws of Motion states that objects resist changes in motion, and will remain at rest or in uniform motion unless acted upon by an external force?

Accepted Answer

First Law of Motion

Answer

Second Law of Motion

Answer

Third Law of Motion

Answer

Law of Universal Gravitation

Question 14

According to Newton's Second Law of Motion, the acceleration of an object is inversely proportional to what?

Accepted Answer

The mass of the object

Answer

The time taken for the object to move

Answer

The weight of the object

Answer

The velocity of the object

Question 15

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

Accepted Answer

A tennis player hitting the ball with the racket, and the racket exerting an equal and opposite force on the ball

Answer

A cyclist pushing on the pedals and the pedals not exerting a force back on the cyclist

Answer

A swimmer pushing off the pool wall and the pool wall not exerting a force back on the swimmer

Question 16

When a footballer kicks a ball, the force exerted by the player's foot on the ball is:

Accepted Answer

Equal in magnitude and opposite in direction to the force exerted by the ball on the foot

Answer

Less than the force exerted by the ball on the foot

Answer

Greater than the force exerted by the ball on the foot

Question 17

A car is traveling at a steady speed on a level road. What is the net force acting on the car?

Accepted Answer

Zero

Answer

The force of gravity

Answer

The force applied by the engine

Answer

The force of air resistance

Question 18

When a person jumps up in the air, what force is mainly responsible for their descent?

Accepted Answer

Gravitational force

Answer

Upthrust

Answer

Centrifugal force

Answer

Inertia

Question 19

Which of the following units is used to measure force?

Accepted Answer

Newton (N)

Answer

Kilogram (kg)

Answer

Meter per second squared (m/s^2)

Answer

Joule (J)

Question 20

A ball is thrown horizontally. At the highest point of its trajectory, which of Newton's Laws of Motion is primarily responsible for its continued horizontal motion?

Accepted Answer

First Law of Motion

Answer

Second Law of Motion

Answer

Third Law of Motion

Answer

Law of Universal Gravitation

Question 21

According to Newton's First Law of Motion, an object at rest will remain at rest, and an object in motion will maintain its velocity, unless acted upon by an external force. Which of the following is an example of Newton's First Law in action?

Accepted Answer

A stationary car on a level road

Answer

A bicycle being ridden along a flat path

Answer

A person running on a treadmill

Answer

A ball rolling down a hill

Question 22

When a person jumps off a diving board, the force that opposes their upward motion is:

Accepted Answer

Gravity

Answer

Air resistance

Answer

Friction

Answer

Inertia

Question 23

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

Accepted Answer

Temperature

Answer

Coefficient of friction

Answer

Surface area

Answer

Normal force

Question 24

A cyclist is riding along a flat road at a constant speed. Which of Newton's Laws is primarily responsible for maintaining their motion?

Accepted Answer

Newton's First Law

Answer

Newton's Second Law

Answer

Newton's Third Law

Answer

The Law of Conservation of Energy

Question 25

A gymnast performing a backflip experiences a centripetal force directed:

Accepted Answer

Toward the center of the circle they are rotating in

Answer

Upward, opposing the force of gravity

Answer

Away from the center of the circle they are rotating in

Question 26

Which of the following is a unit of force?

Accepted Answer

Newton (N)

Answer

Joule (J)

Answer

Meter per second squared (m/s²)

Answer

Kilogram (kg)