Laws of Motion

Newton’s laws, inertia, momentum, force equations and applications.

1.Introduction to Laws of Motion

A simple introduction to how and why objects move or stay at rest, setting the foundation for Newton’s laws.

Learn what force is, how it can change the motion of objects, and why it is called a push or a pull.

3.Balanced and Unbalanced Forces

Understand how forces can cancel out each other or change the state of motion of an object.

A simple explanation of inertia—the tendency of objects to resist a change in motion.

5.Types of Inertia

Learn the three types of inertia: inertia of rest, inertia of motion, and inertia of direction.

6.Newton’s First Law of Motion

Understand the law of inertia and how it explains the natural tendency of objects to remain in their current state.

7.Newton’s Second Law of Motion

Learn how force, mass and acceleration are related through Newton’s second law.

8.Newton’s Third Law of Motion

Simple explanation of action–reaction pairs using real-life examples.

Understand momentum as the quantity of motion possessed by an object and how it depends on mass and velocity.

10.Conservation of Momentum

Learn how momentum is conserved in closed systems, with easy-to-follow examples.

A beginner-friendly explanation of impulse and how it relates to the change in momentum.

12.Applications of Newton’s Laws

Understand real-life applications of Newton’s laws like walking, rocket motion and collision safety.

13.Free Body Diagrams

Learn how to draw simple free-body diagrams to represent forces acting on an object.

Understand friction as a contact force that opposes motion and learn its effects in daily life.

15.Types of Friction

Study static, sliding and rolling friction with beginner-friendly explanations.

16.Advantages and Disadvantages of Friction

Learn why friction is both helpful and harmful in everyday situations.

17.Methods of Reducing Friction

Understand how lubrication, ball bearings and streamlining help reduce friction.