 Force is a push or pulls acting upon an object as a result of its interaction with another object. There are a variety of types of forces. Previously in this lesson, a variety of force types were placed into two broad category headings on the basis of whether the force resulted from the contact or non-contact of the two interacting objects.

## TYPES OF FORCE

Contact Forces

Action-at-a-Distance Forces

Frictional Force

Gravitational Force

Tensional Force

Electrical Force

Normal Force

Magnetic Force

Air Resistance Force

Applied Force

Spring Force

## EFFECT OF FORCE

Force has the following effects on objects

Force can make a stationary object move or make a moving object move faster.

Force can change the direction of a moving object.

Force can change the shape or size of an object.

## Strategies & Activities:

Step: Teacher revises the previous topic.

Step 2: Teacher introduces the new topic.

Step3: Teacher explains the new topic.

Step4: Teacher welcomes pupils’ questions.

Step5: Teacher evaluates the pupils.

## Assessment & Evaluation:

.1. Explains the meaning of force

.2. Explain the source of force.

1. Explains the effects of forces.
2. Explains the usefulness of force.

## Assignment:

1. Define force.
2. Define three types of force.
3. State three effect of force.
4. List three usefulness of force.