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PRIMARY 6: BASIC SCIENCE – THIRD TERM | WEEK 5

TOPIC: FORCE

A: TEACHING AND LEARNING MATERIALS

  1. Toy car.
  2. Ball.
  3. Rubber band.
  4. Magnet.
  5. Spring.
  6. Force charts.
  7. Different classroom objects.

B: REFERENCE MATERIALS

  1. Scheme of work.
  2. Recommended Basic Science textbook for Primary 6.
  3. Online educational resources.

C: PREVIOUS KNOWLEDGE

The pupils have learnt how simple machines make work easier by helping people apply effort to move loads.

D: PERFORMANCE OBJECTIVES

By the end of the lesson, pupils should be able to:

  1. Define force.
  2. Describe force as a push or pull.
  3. Mention examples of force in everyday life.
  4. Identify contact and non-contact forces.
  5. State the effects of force.
  6. Demonstrate how force can change motion or shape.

E: CONTENT

Meaning of Force

A force is a push or pull that can affect an object. Examples: ➡️ Pushing a door. ⬅️ Pulling a drawer. ⚽ Kicking a ball. 🛒 Pushing a trolley.

Types of Force

Forces can be grouped into:

  1. Contact forces
  2. Non-contact forces

Contact Forces

A contact force occurs when two objects touch each other. Examples include:

  • Pushing.
  • Pulling.
  • Friction.
  • Force from a stretched spring.

Non-Contact Forces

A non-contact force can act without objects touching. Examples include:

  • Gravitational force.
  • Magnetic force.

🌍 Gravity pulls objects towards the earth. 🧲 A magnet can attract some metals without touching them first.

Effects of Force

Force can:

  1. Make a stationary object move.
  2. Stop a moving object.
  3. Increase speed.
  4. Reduce speed.
  5. Change direction.
  6. Change the shape of an object.

Examples

⚽ Kicking a stationary ball makes it move. 🧽 Squeezing a sponge changes its shape. 🚲 Applying a bicycle brake reduces motion.

F: LESSON PRESENTATION

F1: Teachers’ Activities

  1. Defines force.
  2. Demonstrates pushing and pulling.
  3. Introduces contact and non-contact forces.
  4. Uses a magnet to demonstrate magnetic force.
  5. Drops an object to demonstrate gravity.
  6. Demonstrates effects of force using a ball and rubber band.
  7. Asks pupils to identify forces around them.

F2: Pupils’ Activities

  1. Define force.
  2. Demonstrate pushes and pulls.
  3. Identify contact forces.
  4. Identify non-contact forces.
  5. Observe examples of gravity and magnetism.
  6. State the effects of force.
  7. Give everyday examples.

G: CONCLUSION

The teacher revises that force is a push or pull and can change the movement, direction, speed or shape of an object. Pupils are encouraged to observe examples of forces in everyday activities.

H: EVALUATION GUIDE

Pupils should be able to answer the following questions:

  1. What is force?
  2. Give three examples of a push.
  3. Give three examples of a pull.
  4. What is a contact force?
  5. Mention two non-contact forces.
  6. State four effects of force.
  7. What force pulls objects towards the earth?