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Physics
Form 4 2025
TERM I
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1 4
Lenses
Conveying and diverging lenses
By the end of the lesson, the learner should be able to:

By the end of the lesson the learner should be able to
Describe converging lenses
Describe diverging lenses

Using light beams to distinguish between diverging and converging lenses

Diverging lenses
Converging lenses
Source of light beam
screen
Comprehensive secondary physics students book 4 pages 1-2
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 1
1 5
Lenses
Parts of fair lenses
By the end of the lesson, the learner should be able to:


Describe the principal focus using ray diagram
Describe the optical center using ray diagram
Describe the focal length of thin lenses using ray diagram

Description of principal focus, optical centre and focal length of a thin lens

Chart showing the parts of thin lens
Graph paper
Diverging lens
Converging lens
Comprehensive secondary physics students book 4 pages 1-3
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 6-7 
2 1-2
Lenses
Focal length
Images in fair lenses
By the end of the lesson, the learner should be able to:


Determine experimentally the focal length of a converging lens
Determine the focal length of a converging lens using estimation method


Construct the principal rays for converging lens
Construct the principal rays for diverging lenses

Experiment to determine the focal length of a fair lens

Constructing the principal rays for diverging lenses
Constructing the principal rays for converging lenses

Converging lenses
Screen
Pins
candle

Converging lenses
Diverging lenses
Graph papers
Ruler
Comprehensive secondary physics students book 4 pages 2-3
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 17-20 
Comprehensive secondary physics students book 4 pages 3-6
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 7-12 
2 3
Lenses
Images in converging lenses
By the end of the lesson, the learner should be able to:


Locate imaged formed by converging lenses using ray construction method
Describe the images formed in converging lenses

Describing the characteristics of images formed in converging lenses

Graph paper
Geometrical set
Converging lenses
screen
Comprehensive secondary physics students book 4 pages 5-6
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 7-10 
2 4
Lenses
Images in diverging lenses
By the end of the lesson, the learner should be able to:


Locate imaged formed by diverging lenses using ray construction method
Describe the images formed in diverging lenses

Describe the characteristics of the formed in diverging lenses
Graph paper
Geometrical set
Diverging lenses
Screen
Comprehensive secondary physics students book 4 pages 5
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 11 
2 5
Lenses
Images in diverging lenses
By the end of the lesson, the learner should be able to:


Locate imaged formed by diverging lenses using ray construction method
Describe the images formed in diverging lenses

Describe the characteristics of the formed in diverging lenses
Graph paper
Geometrical set
Diverging lenses
Screen
Comprehensive secondary physics students book 4 pages 5
teachers book 3 pages 1-5
Secondary physics KLB students book 4 page 11 
3 1-2
Lenses
The microscope
The telescope
By the end of the lesson, the learner should be able to:


Explain the working of a simple microscope
Explain the working of a compound microscope


Describe the structure of a telescope
Describe the working of a telescope

Drawing and labeling the parts of a microscope
Describing the work of a microscope

Drawing and labeling the parts of a telescope
Describing how a telescope works

Simple microscope
Compound microscope
Magnifying lens

Telescope
Lenses
Manilla paper
Comprehensive secondary physics students book 4 pages 10-11
teachers book 4 pages 1-5 
Comprehensive secondary physics students book 4 pages 11
teachers book 4 pages 1-5
3 3
Lenses
The camera
By the end of the lesson, the learner should be able to:


Describe the parts of a camera
Explain the working of a camera
Explain the use of lenses in a camera

Describing the parts of a camera
Explaining the use of lenses in a camera

Camera
Charts showing the parts of a camera
Comprehensive secondary physics students book 4 pages 11-12
teachers book 4 pages 1-5
Secondary physics KLB students book 4 page 33 
3 4
Lenses
Image formation in the human eye
By the end of the lesson, the learner should be able to:


Describe the parts of a human eye
Explain the function of each part of the human eye

Describing the parts of the human eye
Explaining the function of each part of the human eye

Chart showing the parts of human eye
Model of the human eye
Comprehensive secondary physics students book 4 pages 12-13
teachers book 34pages 1-5
Secondary physics KLB students book 4 page 29-31
3 5
Lenses
Working of the human eye
By the end of the lesson, the learner should be able to:


Explain the image formation in the human eye

Explaining the image formation in the eye

Chart showing the image formation in the human eye
Comprehensive secondary physics students book 4 pages 13-14
teachers book 34pages 1-5
Secondary physics KLB students book 4 page 29-31
4 1
Lenses
Defects of vision
By the end of the lesson, the learner should be able to:


Describe the defects of the human eye
Explain the corrections of human eye defects

Describing the defects of the human eye
Explaining the eye defects are corrected

Charts showing eye defects and how they are corrected
Comprehensive secondary physics students book 4 pages 13-14
teachers book 34pages 1-5
Secondary physics KLB students book 4 page 31-32
4 1-2
Lenses
Uniform Circular Motion
Defects of vision
Circular motion
By the end of the lesson, the learner should be able to:


Describe the defects of the human eye
Explain the corrections of human eye defects


Define circular motion

Describing the defects of the human eye
Explaining the eye defects are corrected

Observing and running a hoop
Rotate a stone tied to the end of a rope

Charts showing eye defects and how they are corrected

Hoop
String/rope
store
Comprehensive secondary physics students book 4 pages 13-14
teachers book 34pages 1-5
Secondary physics KLB students book 4 page 31-32
Comprehensive secondary physics students book 4 pages 18
teachers book 34pages 10-12
Secondary physics KLB students book 4 page 37-4
4 3
Uniform Circular Motion
Radiant, angular displacement and angular velocity
By the end of the lesson, the learner should be able to:


Define the radiant measure
Define the angular displacement and velocity
Explain the angular displacement and velocity

Discussions
Experiment

Illustration of angular displacement and angular velocity on a chart
Comprehensive secondary physics students book 4 pages 18-20
teachers book 34pages 10-12
Secondary physics KLB students book 4 page 37-42
Golden tips Physics pages 34-35
4 4
Uniform Circular Motion
Radiant, angular displacement and angular velocity
By the end of the lesson, the learner should be able to:


Define the radiant measure
Define the angular displacement and velocity
Explain the angular displacement and velocity

Discussions
Experiment

Illustration of angular displacement and angular velocity on a chart
Comprehensive secondary physics students book 4 pages 18-20
teachers book 34pages 10-12
Secondary physics KLB students book 4 page 37-42
Golden tips Physics pages 34-35
4 5
Uniform Circular Motion
Centripetal force
By the end of the lesson, the learner should be able to:


Describe simple experiment on centripetal force
Illustrate centripetal force
Determine the magnitude of centripetal force experimentally

Experiments
Discussions
observations

Pendulum
String
Stone
Round table
Ball/bob
Stop clock
Comprehensive secondary physics students book 4 pages 20-21
teachers book 34pages 10-12
Secondary physics KLB students book 4 page 42-47 
5

SERIES ONE EXAMS

6 1-2
Uniform Circular Motion
Floating And Sinking
Application of uniform circular motion
Archimedes? principle
By the end of the lesson, the learner should be able to:


Explain centrifuge
Explain vertical and horizontal circles
Explain banked tracks


State Archimedes? principle
Verify Archimedes principle
Use of Archimedes principle to solve problems

Discussions
Explanations
Experiments

Experiments
Discussions
Calculations based on Archimedes Principle

String
Stone
Ruler

Water
Measuring cylinder
Weighing balance
Overflow can
Objects denser than water
Comprehensive secondary physics students book 4 pages 22-25
teachers book 34pages 10-12
Secondary physics KLB students book 4 page 47-53 
Comprehensive secondary physics students book 4 pages 28-29
teachers book 34pages 14-17
Secondary physics KLB students book 4 page 58-60 
6 3
Floating And Sinking
The laws of floatation Relative density
By the end of the lesson, the learner should be able to:


State the law of floatation
Define relative density

Discussions
Measuring

Density bottle
Overflow can
Spring balance
measuring cylinder
Comprehensive secondary physics students book 4 pages 29-33
teachers book 34pages 14-17
Secondary physics KLB students book 4 page 64-70 
6 4
Floating And Sinking
The laws of floatation Relative density
By the end of the lesson, the learner should be able to:


State the law of floatation
Define relative density

Discussions
Measuring

Density bottle
Overflow can
Spring balance
measuring cylinder
Comprehensive secondary physics students book 4 pages 29-33
teachers book 34pages 14-17
Secondary physics KLB students book 4 page 64-70 
6 5
Floating And Sinking
Applications of floating and sinking
By the end of the lesson, the learner should be able to:


Describe the applications of Archimedes Principle
Describe the applications of relative density (hydrometer)

Discussions
experiments

charts depicting the uses of Archimedes principle and the law of floatation
A hydrometer
Comprehensive secondary physics students book 4 pages 33-35
teachers book 34pages 14-17
Secondary physics KLB students book 4 page 75-77 
7 1-2
Electromagnetic Spectrum
The electromagnetic spectrum
The properties of electromagnetic waves
By the end of the lesson, the learner should be able to:


Describe a complete electromagnetic spectrum


State the properties of electromagnetic waves

Discussions on the charge in wave length of electromagnetic radiations
explanations

Explaining the properties of each component of the electromagnetic spectrum

charts showing the components of the electromagnetic spectrum

Charts showing the properties of electromagnetic waves
Comprehensive secondary physics students book 4 pages 37
teachers book 34pages 18-20
Secondary physics KLB students book 4 page 79 
Comprehensive secondary physics students book 4 pages 37-38
teachers book 34pages 18-20
Secondary physics KLB students book 4 page 80-81 
7 3
Electromagnetic Spectrum
Detection of electromagnetic radiations
By the end of the lesson, the learner should be able to:


Describe the methods of detective electromagnetic radiations

Demonstrating and explaining how to detect electromagnetic radiations

Radiation detectors
Charts showing detectors of electromagnetic radiation
Comprehensive secondary physics students book 4 pages 38-39
teachers book 34pages 18-20
Secondary physics KLB students book 4 page 81
Golden tips Physics pages
175-176
7 4
Electromagnetic Spectrum
Applications of electromagnetic radiations
By the end of the lesson, the learner should be able to:


Describe the applications of electromagnetic radiations including green house effect

Discussions of application of electromagnetic radiations

Pictures and chart on application of electromagnetic radiations
Comprehensive secondary physics students book 4 pages 42-45
teachers book 34pages 18-20
Secondary physics KLB students book 4 page 82 
7 4-5
Electromagnetic Spectrum
Applications of electromagnetic radiations
By the end of the lesson, the learner should be able to:


Describe the applications of electromagnetic radiations including green house effect

Discussions of application of electromagnetic radiations

Pictures and chart on application of electromagnetic radiations
Comprehensive secondary physics students book 4 pages 42-45
teachers book 34pages 18-20
Secondary physics KLB students book 4 page 82 
8

MIDTERM BREAK

9 1-2
Electromagnetic Spectrum
Electromagnetic Induction
Problems on C=FX
Induced e.m.f
By the end of the lesson, the learner should be able to:


Solve numerical problems involving C=fx


Perform and describe simple experiments to illustrate electromagnetic induction
State the factors affecting the magnitude of an induced e.m.f
State the factors affecting the direction induced by e.m.f

Problem solving
Discussions
Explanations
Questions and answers

Experiments
discussions

Questions and answers
exercises

magnets
complete
electric circuit
Comprehensive secondary physics students book 4 pages 45
teachers book 34pages 20-21
Secondary physics KLB students book 4 page 80
Comprehensive secondary physics students book 4 pages 46-48
teachers book 34pages 21-25
Secondary physics KLB students book 4 page 86-91 
9 3
Electromagnetic Induction
Faraday?s law and Lenz?s law
By the end of the lesson, the learner should be able to:


State Faraday?s law
State Lenz?s law
Illustrate Faraday law and Lens?s law

Discussions
Experiments to illustrate Faraday?s law and Lenz?s law

Magnets
Solenoid
Source of current
Comprehensive secondary physics students book 4 pages 48-50
teachers book 34pages 21-25
Secondary physics KLB students book 4 page 91-93 
9 4
Electromagnetic Induction
Fleming?s right hand rule
By the end of the lesson, the learner should be able to:


State Fleming?s right hand rule
Apply Fleming?s right hand rule

Explanation of the motor rule
Discussion of the application of electromagnetic induction

Magnets
Wire
Source of current
Comprehensive secondary physics students book 4 pages 49-50
teachers book 34pages 21-25
Secondary physics KLB students book 4 page 93-97 
9 5
Electromagnetic Induction
Generators
By the end of the lesson, the learner should be able to:


Explain the working of an a.c generator
Explain the working of a d.c generator

Drawing the arrangement for a.c and a d.c generators
Demonstration of motor principle

Coil
Pins
Source of current
magnets
Comprehensive secondary physics students book 4 pages 50-53
teachers book 34pages 21-25
Secondary physics KLB students book 4 page 
10-11

CJET JOINT EXAM

12 1-2
Electromagnetic Induction
Eddy currents
By the end of the lesson, the learner should be able to:

Explain eddy currents
Demonstrate the effects of eddy currents

Discussions
Experiments
Explanations

Pendulum
Copper wire
Magnets
Comprehensive secondary physics students book 4 pages 53-54
teachers book 4 pages 24
12 3
Electromagnetic Induction
Mutual inductance
By the end of the lesson, the learner should be able to:


Describe simple experiments to illustrate mutual inductance

Discussions
Experiments
Explanations

Iron care with primary and secondary coil
Comprehensive secondary physics students book 4 pages 54-55
teachers book 34pages 21-25
Secondary physics KLB students book 4 pages 97-101
Golden tips Physics pages 158
12 4
Electromagnetic Induction
Mutual inductance
By the end of the lesson, the learner should be able to:


Describe simple experiments to illustrate mutual inductance

Discussions
Experiments
Explanations

Iron care with primary and secondary coil
Comprehensive secondary physics students book 4 pages 54-55
teachers book 34pages 21-25
Secondary physics KLB students book 4 pages 97-101
Golden tips Physics pages 158
12 5
Electromagnetic Induction
Transformers
By the end of the lesson, the learner should be able to:


Explain the working of a transformer

Discussions
Experiments

Transformer
Magnets
Wires
Metallic rods
Comprehensive secondary physics students book 4 pages 54-59
teachers book 34pages 21-25
Secondary physics KLB students book 4 page 100-104 
13 1-2
Electromagnetic Induction
Electromagnetic Induction
Applications of electromagnetic induction
Eddy currents
By the end of the lesson, the learner should be able to:


Explain the application of electromagnetic induction
Solve problems on transformers


Explain eddy currents
Demonstrate the effects of eddy currents

Discussions
Explanations
Questions and answers

Discussions
Experiments
Explanations

Induction coil
Moving coil/loud speaker

Pendulum
Copper wire
Magnets
Comprehensive secondary physics students book 4 pages 54-59
teachers book 34pages 21-25
Secondary physics KLB students book 4 page 107-112 
Comprehensive secondary physics students book 4 pages 53-54
teachers book 34pages 24
Secondary physics KLB students book 4 pages,104 

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