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Form 3 2025
TERM I
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 1-2
Magnetism
Magnetism and magnetic materials
The compass
By the end of the lesson, the learner should be able to:


Identify magnetic and non-magnetic materials


Construct simple compass

Observing attraction and repulsion of magnets
Identifying the test for magnetic materials
Describing natural and artificial materials
Carrying out experiments to identify magnetic and non-magnetic materials

Constructing a simple compass

Magnets
Nails
Pins
Wood
Plastics
Tins
Spoons
Strings
Razor blade
Stand

Pin/screw
Magnet
Cork
Glass top
Water trough
Piece of stiff paper
Razor blade
Glue
Comprehensive secondary physics students book 2 pages 1-2
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 
Comprehensive secondary physics students book 2 pages 3-5
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 5 
2 3
Magnetism
The compass
By the end of the lesson, the learner should be able to:


Construct simple compass

Constructing a simple compass

Pin/screw
Magnet
Cork
Glass top
Water trough
Piece of stiff paper
Razor blade
Glue
Comprehensive secondary physics students book 2 pages 3-5
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 5 
2 4
Magnetism
The domain theory of magnetism
By the end of the lesson, the learner should be able to:


Explain the domain theory

Describing the domain theory of magnetism
Explaining the application of the domain theory of magnetism

Charts on domain theory
Bar magnets
Iron fillings
Test tubes
Cork
Comprehensive secondary physics students book 2 pages 9-10
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 17 
2 5
Magnetism
Properties of magnets and the law of magnetism
By the end of the lesson, the learner should be able to:


Describe the properties of magnets
State the logic law of magnetism

Investigating properties of magnets
Stating the laws of magnetism

Magnets
Charts on properties
Iron fillings
Strings
Stand
Comprehensive secondary physics students book 2 pages 1-2
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 1-4 
3 1-2
Magnetism
Magnetic field patterns
By the end of the lesson, the learner should be able to:


Describe magnet field patterns

Plotting the field of a bar magnet using a compass and iron filings


A compass
Iron fillings
Bar magnets
Can with lid
Card board
Sheet of papers
Comprehensive secondary physics students book 2 pages 3-5
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 6-7 
3 3
Magnetism
Making magnets by induction and stroking
By the end of the lesson, the learner should be able to:

make magnets by :
Induction
Stroking

Demonstrating induction
Magnetizing a steel bar by stroking single and double strikes
Defining hard and soft magnets

Bar magnets
Steel bars
Nails
Iron bars
Comprehensive secondary physics students book 2 pages 6-7
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 19-22 
3 4
Magnetism
Demagnetization and caring for magnets
By the end of the lesson, the learner should be able to:


Describe the methods of demagnetizative
Describe how to care for magnets

Describing ways of demagnetizing of magnet
Explaining how to care for magnets
Carrying out experiments to demagnetize and care for magnets

Battery/cell
Keepers
Bar magnets
Chart on demagnetization and care for magnets
Comprehensive secondary physics students book 2 pages 8-9
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 25-26 
3 5
Magnetism
Uses of magnets
By the end of the lesson, the learner should be able to:


Describe the uses of magnets

Describing uses of magnets
Discussions
Using magnets

Magnets
Metallic bars
Non-metallic bars
Comprehensive secondary physics students book 2 pages 9
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 27 
4 1-2
Magnetism
Making magnets by an electric current
By the end of the lesson, the learner should be able to:
Magnetize a material by an electric current
Magnetizing a steel bar by an electric current
Insulated wire

Battery cell

Steel bar
Comprehensive secondary physics students book 2 pages 8
Comprehensive secondary physics teachers book 2 pages 1-5
Secondary physics KLB students book 2 page 23-24 
4 3
Reflection At Curved Surfaces
Spherical mirrors
By the end of the lesson, the learner should be able to:


Describe concave, convex and parabolic reflectors

Reflecting light at curved mirrors

Concave mirrors
Convex mirrors
parabolic mirrors
Plane papers
Soft board, pins
Comprehensive secondary physics students book 2 pages 35
Comprehensive secondary physics teachers book 2 pages 18-22
Secondary physics KLB students book 2 page 83 
4 4
Reflection At Curved Surfaces
Parts of spherical mirrors and parabolic surfaces
By the end of the lesson, the learner should be able to:


Describe using any diagram, the principle axes, principle focus, centre of curvature, radius of curvature and related terms

Describing parts of a curved mirrors
Observing reflection at spherical mirrors

Variety of a curved mirrors
Graph papers
Rulers
Comprehensive secondary physics students book 2 pages 35-37
Comprehensive secondary physics teachers book 2 pages 18-22
Secondary physics KLB students book 2 page 85-87 
4 5
Reflection At Curved Surfaces
Applications of curved reflecting surfaces and magnification
By the end of the lesson, the learner should be able to:


Define magnification
State and explain the applications of curved mirrors
State the defects of spherical mirrors

Explaining magnification and formula in curved mirrors
Describing the uses of curved mirrors
Asking questions

Curved mirrors
Exercise in students book 2
Comprehensive secondary physics students book 2 pages 40-43
Comprehensive secondary physics teachers book 2 pages 19-24
Secondary physics KLB students book 2 page 104-120
5 1-2
Reflection At Curved Surfaces
Locating images in curved mirrors and parabolic surfaces
By the end of the lesson, the learner should be able to:


Use ray diagram to locate images formed by plane mirrors

Drawing ray diagrams
Describing image characteristics

Graph papers
Soft boards
Plane papers
Pins
Comprehensive secondary physics students book 2 pages 37-38
Comprehensive secondary physics teachers book 2 pages 18-22
Secondary physics KLB students book 2 page 86 
5 3
Reflection At Curved Surfaces
Characteristics of images formed by concave mirrors
By the end of the lesson, the learner should be able to:


Determine experimentally the characteristics of images formed by concave mirrors

Experimenting with concave mirrors
Describing the nature of images formed in concave mirror

Concave mirrors
Comprehensive secondary physics students book 2 pages 39-40
Comprehensive secondary physics teachers book 2 pages 19-22
Secondary physics KLB students book 2 page 95-100 
5 4
The Magnetic Effect Of Electric Current
Magnetic field due to current
By the end of the lesson, the learner should be able to:


Perform and describe an experiment to determine the direction of a magnetic field round a current carrying conductor

Observing and describing the direction of magnetic field round a current carrying a conductor
Carrying out experiments

Compass
Wires
Battery
Ammeter
Compass needle
Cardboard
Screws
Iron fillings
Comprehensive secondary physics students book 2 pages 44-47
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 123-128 
5 5
The Magnetic Effect Of Electric Current
Magnetic field due to current
By the end of the lesson, the learner should be able to:


Perform and describe an experiment to determine the direction of a magnetic field round a current carrying conductor

Observing and describing the direction of magnetic field round a current carrying a conductor
Carrying out experiments

Compass
Wires
Battery
Ammeter
Compass needle
Cardboard
Screws
Iron fillings
Comprehensive secondary physics students book 2 pages 44-47
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 123-128 
6 1-2
The Magnetic Effect Of Electric Current
Factors affecting force on a current carrying conductor
Construction of a simple electric motor
By the end of the lesson, the learner should be able to:


State and explain factors affecting force on a current carrying conductors in a magnetic fields

;
Construct a simple electric motor

Rotation between current magnetism and force

Constructing an electronic motor

Battery
Magnets
Wires
Ferromagnetic materials

Source of current
Wire
magnets
Comprehensive secondary physics students book 2 pages 49-51
Comprehensive secondary physics teachers book 2 pages 27
Secondary physics KLB students book 2 page 131 
Comprehensive secondary physics students book 2 pages 49-51
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 150-151
6 3
Magnetic Effect Of Electric Current
Magnetic field pattern
By the end of the lesson, the learner should be able to:


Determining the magnetic field patterns on straight conductors and solenoid

Constructing a simple electromagnetic

Soft iron
Nails
Compass
Solenoid
Comprehensive secondary physics students book 2 pages 47-48
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 128 
6 4
Magnetic Effect Of Electric Current
Magnetic field pattern
By the end of the lesson, the learner should be able to:


Determining the magnetic field patterns on straight conductors and solenoid

Constructing a simple electromagnetic

Soft iron
Nails
Compass
Solenoid
Comprehensive secondary physics students book 2 pages 47-48
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 128 
6 5
Magnetic Field Of Electric Current
Electromagnetic field pattern
By the end of the lesson, the learner should be able to:


Construct a simple electromagnet

Constructing a simple electromagnets

Solenoid
Soft iron
Nails compass
Comprehensive secondary physics students book 2 pages 47-48
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 143 
7 1-2
Magnetic Effects Of Electric Current
Strength of an electron-magnets
Applications of electromagnets
By the end of the lesson, the learner should be able to:


Explain the working of simple electronic motor and an electric bell


Explain the working of a simple electric motor and an electric bell

Investigating the factors that affect the strength of an electromagnet

Discussing the use of an electric bell
Discussing the use of electric motor

Battery
Ammeter
Different magnetic materials

An electric bell
An electric motor
Comprehensive secondary physics students book 2 pages 48-49
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 131 
Comprehensive secondary physics students book 2 pages 49-58
Comprehensive secondary physics teachers book 2 pages 23-28
Secondary physics KLB students book 2 page 143-151
7 3
Magnetic Effects Of Electric Current
Applications of electromagnets
By the end of the lesson, the learner should be able to:


Explain the working of a simple electric motor and an electric bell

Discussing the use of an electric bell
Discussing the use of electric motor

An electric bell
An electric motor
Comprehensive secondary physics students book 2 pages 49-58
Comprehensive secondary physics teachers book 2 pages 23-28
Secondary physics KLB students book 2 page 143-151
7 4
Magnetic Effects Of Electric Current
Construction of an electric bell
By the end of the lesson, the learner should be able to:


Construct a simple electric bell

Constructing an electric bell

Materials for constructing an electric bell
Chart in electric bell
Comprehensive secondary physics students book 2 pages 48-49
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 131 
7 5
Magnetic Effects Of Electric Current
Motor effect
By the end of the lesson, the learner should be able to:


Experimentally determine direction of a force on a conductor carrying current in a magnetic field

Experiments on motor effects
Flemings rules illustrated

Magnets
Wires
Battery
Pins
Comprehensive secondary physics students book 2 pages 52-53
Comprehensive secondary physics teachers book 2 pages 25-28
Secondary physics KLB students book 2 page 150-151
8

Midterm Break

9 1-2
Waves I
Pulses and waves
By the end of the lesson, the learner should be able to:


Describe the information of pulses and waves

Describing the formation of pulses and waves

Strings/ropes
Ripple frank
Water
Stones
Basins
Comprehensive secondary physics students book 2 pages 67
Comprehensive secondary physics teachers book 2 pages 34-35
Secondary physics KLB students book 2 page 173-176 7
9 3
Waves I
Transverse and longitudinal pulse and waves
By the end of the lesson, the learner should be able to:


Describe transverse and longitudinal pulses and waves

Distinguishing between transverse and longitudinal pulses and waves
Forming pulse and waves

Sources of transverse and longitudinal waves
Comprehensive secondary physics students book 2 pages 67-69
Comprehensive secondary physics teachers book 2 pages 34-35
Secondary physics KLB students book 2 page 170-173
9 4
Waves I
Characteristics of waves
By the end of the lesson, the learner should be able to:


Define amplitude (a), the wave length (l) the frequency (f) and the period (T) of a wave

Describing and defining the characteristics of waves

Ripple tank
Rollers
Springs
Chart showing the characteristics of waves
Comprehensive secondary physics students book 2 pages 69-71
Comprehensive secondary physics teachers book 2 pages 34-35
Secondary physics KLB students book 2 page 174-183 
9 5
Sounds
Production of sounds
By the end of the lesson, the learner should be able to:


Demonstrate that sound is produced by vibrating objects

Producing sound by vibrating strings, tins and bottles

Strings
Tins
Bottles
Stick
Tuning forks
Nails
shakers
Comprehensive secondary physics students book 2 pages 73
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 186-189 93
10 1-2
Sounds
Nature of sound waves
By the end of the lesson, the learner should be able to:


Describe the nature of sound waves

Describing and observing the characteristics of sound waves using the echo methods to find the speed of sound
Discussions

Open tube
Closed tube
Strings
bottles
Comprehensive secondary physics students book 2 pages 74-76
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 194 
10 3
Sounds
Propagation of sounds
By the end of the lesson, the learner should be able to:

By the end of the the lesson, the learner should be able to:
Show that light does not travel in vacuum

Demonstrating that sound requires a materials random for perpetration

Bell jar
Vacuum pump
Electric bell
Comprehensive secondary physics students book 2 pages 74
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 190-193
10 4
Sound
Speed of sound
By the end of the lesson, the learner should be able to:


Determine the speed of sound in air by echo methods

Investigating the factors determining the speed of sound

Stop clock/watch
Chart on procedure for formulating the speed of sound
Comprehensive secondary physics students book 2 pages 77-78
Comprehensive secondary physics teachers book 2 pages 37-39
Secondary physics KLB students book 2 page 190-193 
10 5
Sound
Factors affecting the speed of sound
By the end of the lesson, the learner should be able to:


State factors that affect the speed of sound

Discussing how different aspects of nature affects the speed of sound

Sources of sound
Solid
Water
Air
Comprehensive secondary physics students book 2 pages 78-79
Comprehensive secondary physics teachers book 2 pages 38-39
Secondary physics KLB students book 2 page 193
11 1-2
Refraction Of Light
The meaning of refraction
By the end of the lesson, the learner should be able to:


Describe simple experiments to illustrate refraction of light

Experiments demonstrating refraction of light

Beakers
Water
Stick or glass rod
Basins
Coins
Glass blocks
Pin
Comprehensive secondary physics students book 3 pages 11-12
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 41-46
11 3
Refraction Of Light
Laws of refraction
By the end of the lesson, the learner should be able to:


State the laws of refraction and define refractive index

Discovering Snell?s law of refraction through experiments
Defining refractive index
Stating the laws of refraction

Glass blocks
Pins
Soft board
Plain paper
Geometric set
Comprehensive secondary physics students book 3 pages 12-14
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 47-61 
11 4
Refraction Of Light
Refractive index
By the end of the lesson, the learner should be able to:


Determine the refractive index of a given substance

Experiments to determine the refractive index of rates and glass by real and apparent depth method

Water
Pins
Plain papers
Coins
Beakers
Comprehensive secondary physics students book 3 pages 14-15
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 61-68
11 5
Refraction Of Light
Refractive index
By the end of the lesson, the learner should be able to:


Determine the refractive index of a given substance

Experiments to determine the refractive index of rates and glass by real and apparent depth method

Water
Pins
Plain papers
Coins
Beakers
Comprehensive secondary physics students book 3 pages 14-15
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 61-68
12 1-2
Refraction Of Light
Application of a total internal reflection in a prism periscope, optical fibre
Dispersion of white light and recombination of colors of the spectrum
By the end of the lesson, the learner should be able to:


Explain the working of a prisms and optical fibres among other applications


Describe an experiment to illustrate the dispersion of light

Making a periscope
Discussion on working of an optical fibre


Experiment on dispersion of light using glass prisms

Charts on total internal reflection and applications

Triangular glass prisms
Source of light
Screen
Comprehensive secondary physics students book 3 pages 18-19
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 76-79 
Comprehensive secondary physics students book 3 pages 19-20
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 79-89
12 3
Refraction Of Light
Problems of refractive index and critical angle
By the end of the lesson, the learner should be able to:


Solve problems involving the refractive index and critical angle

Discussions and problem solving in critical angle using the formulae sin C=i/n and n=sin i/sin r

Review questions
Past exams
Examples in the topic
Comprehensive secondary physics book 3 pages 21-22
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 82-86
12 4
Refraction Of Light
Problems of refractive index and critical angle
By the end of the lesson, the learner should be able to:


Solve problems involving the refractive index and critical angle

Discussions and problem solving in critical angle using the formulae sin C=i/n and n=sin i/sin r

Review questions
Past exams
Examples in the topic
Comprehensive secondary physics book 3 pages 21-22
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 82-86
12 5
Refraction Of Light
Total material reflection and its effect Critical angle
By the end of the lesson, the learner should be able to:


Describe an experiment to explain the total internal reflection and its effects
Define critical angle

Experiments to explain the total internal reflection and its effects
Defining critical angle
Observations and discussions on critical angle
Total internal reflection

Glass blocks
Soft boards
Pins
Geometrical set
Source of light
Comprehensive secondary physics students book 3 pages 16-17
Comprehensive secondary physics teachers book 3 pages6-9
Secondary physics KLB students book 3 page 68-76 

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