CBSE Class 4 Science – Force, Work, and Energy

Chapter Overview

This chapter introduces the concepts of force, types of forces, how work is done, and different forms of energy.

Important Keywords

• Force: A push or pull applied to an object.
• Work: The result of force applied to move an object.
• Energy: The ability to do work.
• Friction: A force that slows down moving objects.
• Gravity: The force that pulls objects towards the Earth.
• Kinetic Energy: Energy of a moving object.
• Potential Energy: Stored energy.
• Mechanical Energy: The sum of kinetic and potential energy.