Physics ยท Science General

Newtonian Mechanics and Forces

1,605 Questions

Newtonian mechanics studies the motion of objects and the physical laws governing them. This hub covers friction, gravitational force, inertia, and vector quantities. Mastering these fundamental physics concepts is essential for various government competitive exams.

Laws of motionFriction and inertiaVector and scalar quantitiesGravitational accelerationArchimedes principle

Newtonian Mechanics and Forces Questions

Multiple choice

Air resistance is a type of drag force that opposes the motion of an object through a fluid.

  1. True

  2. False
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Air resistance is caused by the interaction between the object and the molecules of the fluid.

Multiple choice

Which of Newton's laws of motion states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force?

  1. Newton's First Law of Motion

  2. Newton's Second Law of Motion

  3. Newton's Third Law of Motion
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Newton's First Law of Motion, also known as the law of inertia, states that an object at rest stays at rest and an object in motion stays in motion with the same speed and in the same direction unless acted upon by an unbalanced force.

Multiple choice

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This means that:

  1. When one object exerts a force on another object, the other object exerts a force of equal magnitude but opposite direction on the first object.

  2. When two objects interact, the forces they exert on each other are always equal in magnitude and opposite in direction.

  3. The total momentum of a system of objects is always conserved.
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Newton's Third Law of Motion states that for every action, there is an equal and opposite reaction. This means that when one object exerts a force on another object, the other object exerts a force of equal magnitude but opposite direction on the first object.

Multiple choice

Which of the following is not a fundamental force in physics?

  1. Gravitational force

  2. Electromagnetic force

  3. Strong nuclear force

  4. Weak nuclear force

  5. Centrifugal force
Reveal answer Fill a bubble to check yourself
E Correct answer
Explanation

Centrifugal force is not a fundamental force in physics. It is an inertial force that arises due to the rotation of a frame of reference.

Multiple choice

Which of the following is an example of a practical effect?

  1. A spaceship flying through space

  2. A car exploding

  3. A character transforming into a monster

  4. A dragon breathing fire
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

A car exploding is an example of a practical effect because it is created using real-world materials and techniques. The other options are all examples of CGI.

Multiple choice

Which mathematical concept describes the rate of change of a function with respect to its input?

  1. Derivative

  2. Integral

  3. Limit

  4. Vector
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The derivative of a function measures the instantaneous rate of change of the function at a given point.

Multiple choice

What is the force that pulls objects towards the center of the Earth called?

  1. Gravity

  2. Magnetism

  3. Electricity

  4. Friction
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gravity is the force that pulls objects towards the center of the Earth.

Multiple choice

What is the force that causes objects to move when they are pushed or pulled called?

  1. Gravity

  2. Magnetism

  3. Electricity

  4. Friction
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Friction is the force that causes objects to move when they are pushed or pulled.

Multiple choice

What is the force that causes objects to stick together called?

  1. Gravity

  2. Magnetism

  3. Electricity

  4. Friction
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Magnetism is the force that causes objects to stick together.

Multiple choice

What is the force that causes objects to move when they are connected to a battery called?

  1. Gravity

  2. Magnetism

  3. Electricity

  4. Friction
Reveal answer Fill a bubble to check yourself
C Correct answer
Explanation

Electricity is the force that causes objects to move when they are connected to a battery.

Multiple choice

Which of the following is a fundamental property of matter that determines its resistance to deformation?

  1. Mass

  2. Volume

  3. Density

  4. Elasticity
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Elasticity is a fundamental property of matter that describes its ability to resist deformation and return to its original shape when the deforming force is removed.

Multiple choice

What is the name of the force that attracts objects with mass towards each other?

  1. Gravitational force

  2. Electromagnetic force

  3. Strong nuclear force

  4. Weak nuclear force
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

The gravitational force is the force that attracts objects with mass towards each other, and is responsible for the motion of planets, stars, and galaxies.

Multiple choice

Which of the following is a type of energy that is associated with the motion of objects?

  1. Kinetic energy

  2. Potential energy

  3. Internal energy

  4. Thermal energy
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Kinetic energy is the energy that is associated with the motion of objects, and is calculated as the product of half the mass of the object and the square of its velocity.

Multiple choice

What is the name of the force that is responsible for the attraction between objects with mass?

  1. Gravity

  2. Electromagnetism

  3. The strong nuclear force

  4. The weak nuclear force
Reveal answer Fill a bubble to check yourself
A Correct answer
Explanation

Gravity is the force that is responsible for the attraction between objects with mass.

Multiple choice

What was the name of the law that Isaac Newton discovered that describes the relationship between force, mass, and acceleration?

  1. The law of universal gravitation

  2. The law of motion

  3. The law of conservation of energy

  4. The law of thermodynamics
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Isaac Newton discovered the law of motion, which describes the relationship between force, mass, and acceleration.