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10 WORK, FORCE AND ENERGY

Learning Objectives

 What is Work?
 What is Force?
 Simple Machine
 What is Energy?

Learning!

Let’s Start Learning

We interact with force, work and energy in our daily life. But do you know that really
what they mean. Come, let's read more to learn about them in detail.

What is Force?

Any kind of force is really just a push or a pull. For instance - when we push on
something or pull on it, then we are applying a force to it. A force can cause an object
to accelerate, slow down, remain in place, or change shape. In nature, there are two
types of forces namely: gravity and friction.

Gravity

Gravity is the force that attracts two bodies toward each other, the Gravity
force that causes apples to fall toward the ground and the planets
to orbit the sun. The more massive an object is, the stronger it's
gravitational pull.

Friction

When a ball is rolled on the ground, it moves a distance and then stops. What is the
reason behind the stopping of ball? It stops due to friction between ground and ball.

html5 e=mc2 For the Teacher Tell the students about force, work and energy. Give examples to the

students from daily life.

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