# Meaning and Types of Force | The Effects of Force on Materials Primary 6 (Basic 6) Term 3 Week 5 Basic Science

### BASIC SCIENCE

BASIC SCIENCE AND TECHNOLOGY

SMASE – ASEI PDSI METHOD

THIRD TERM

WEEK 5

PRIMARY 6

THEME – LEARNING ABOUT OUR ENVIRONMENT

PREVIOUS LESSON – Simple Machine (Inclined Plane) – Meaning and Advantages of Inclined Plane Primary 6 (Basic 6) Term 3 Week 4 Basic Science

### LEARNING AREA

1. Introduction

2. Meaning and Types of Force

3. Effects of Force on Materials

4. Lesson Evaluation and Weekly Assessment (Test)

### LEARNING OBJECTIVES

By the end of the lesson, most of the pupils should have attained the following objectives –

1. explain the meaning of force.

2. differentiate between push and pull forces with appropriate examples.

3. give examples of forces – gravity, friction, magnetic, etc.

5. demonstrate the effect of force on objects.

### ENTRY BEHAVIOR

The pupils can the effects of force on objects.

### INSTRUCTIONAL MATERIALS

The teacher will teach the lesson with the aid of Nails; Stones and pebbles; Rough surfaces, e.g. wood; Smooth surfaces, e.g. glass; Magnets; Batteries; Pieces of foam; Springs; Rubber bands; etc.

### METHOD OF TEACHING

Choose a suitable and appropriate methods for the lessons.

Note – Irrespective of choosing methods of teaching, always introduce an activities that will arouse pupil’s interest or lead them to the lessons.

### REFERENCE MATERIALS

1. Scheme of Work

2. 9 – Years Basic Education Curriculum

3. Course Book

4. All Relevant Material

5. Online Information

Meaning, Types and Effects of Forces – ASEI PDSI METHOD (Primary 6)

Third Term Scheme of Work and Plan Lesson Note for Basic Science and Technology Primary 4, Primary 5 and Primary 6 Links

### LESSON 1 – INTRODUCTION

In the school and at home, we see many moving things.

We move about on our legs, vehicles move on roads, trains on the rails, aeroplane fly in the sky and ships sail on the seas.

Movement occurs when a force is applied on a thing or object.

That is, force causes things to move.

It can also prevent things from moving.

MEANING OF FORCE

A force is the power that makes an object to move by pushing or pull.

It opposed movement of an object or caused an object to move.

For example, car acceleration and break are good examples of push and pull forces.

TYPES/EXAMPLES/EVIDENCE OF FORCE

There are many types of forces, but only five are discussed below:

1. Muscular Force

2. Gravitational Force

3. Magnetic Force

4. Electrical Force

5. Frictional Force

1. MUSCULAR FORCE

Muscular force is the force applied to an object using the parts of body such as arms and legs.

For example – weight lifting (hands) and riding a bicycle (legs).

2. GRAVITATIONAL FORCE

Gravitational force is force that pulls an object down to earth.

3. MAGNETIC FORCE

Magnetic force is the force that attracts all magnetic materials to itself or push them further away from itself.

It is also pull or push force.

4. ELECTRICAL FORCE

Electrical force is the force that produces electric current.

5. FRICTIONAL FORCE

Frictional force is the force that opposed or slow movement.

6. BALANCE AND IMBALANCE FORCE

Balance force is the force that keep an object to rest while imbalance force is the force that makes an object to move from one place to another.

7. CONTACT AND NON CONTACT FORCE

Contact force is the force that is applied directly to an object while non contact force is the force that attracts objects from a distance.

### LESSON 2 – EFFECTS OF FORCE

A force acting on an object may cause the object:

1. to change shape and size.

2. to start moving.

3. to stop moving.

4. to rotate.

5. to accelerate or decelerate.

APPLICATION OF FORCE ON OBJECTS (30 MINUTES)

Teacher organizes pupils in groups or pairs depending on the size of the class to demonstrate the effects of force on objects.

LESSON 3 – WEEKLY ASSIGNMENTS

As stated in performance objectives or lesson evaluation.

### PRESENTATION

To deliver the lesson, the teacher adopts the following steps:

1. To introduce the lesson, the teacher revises the previous lesson. Based on this, he/she asks the pupils some questions;

2. Teacher organizes pupils into groups for a tug of war contest.

3. Teacher asks pupils to describe the different between the winner and runner up.

Pupil’s Activities – Take active part in the game and describe their strengths and weakness.

4. Teacher listens the group and uses their appropriate responses to introduce the lesson and leads a discussion on the meaning and types of force.

Pupil’s Activities – Pay attention to the lesson introduction and participate actively in the class discussion.

5. Teacher uses appropriate examples or illustrations to support each type of force.

Pupil’s Activities – State more examples to support each type of force.

6. Teacher provides springs, magnet, battery, wire and bulb, balloon, etc. to guide pupils to demonstrate the effects of force on objects or materials.

Pupil’s Activities – Demonstrate the effects of force on objects.

7. Teacher summarizes each lesson on the board with appropriate lesson evaluation.

Pupil’s Activities – Participate actively in the summary of the lesson by responding correctly to the questions and write as instructed.

### CONCLUSION

• To conclude the lesson for the week, the teacher revises the entire lesson and links it to the following week’s lesson (frictional force).

### LESSON EVALUATION

Teacher asks pupils to,

1. explain the meaning of force with appropriate illustrations.

2. state 5 types of force.

3. mention 5 effects of force on objects.

4. demonstrate the effects of force on mater.