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Physics
Form 4 2025
TERM III
School


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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
1

School Opening and Revision of End term 2 Exam

2 1
Radio Activity
Types of radiation
By the end of the lesson, the learner should be able to:


Describe the three types of radiations produced by radioactive elements

Discussions

Radiation
detectors
Comprehensive secondary physics students book 4 pages 96-100
Secondary physics KLB students book 4 page 167-171 
2 2-3
Radio Activity
Types of radiation
By the end of the lesson, the learner should be able to:


Describe the three types of radiations produced by radioactive elements

Discussions

Radiation
detectors
Comprehensive secondary physics students book 4 pages 96-100
Secondary physics KLB students book 4 page 167-171 
2 4
Radio-Activity
Detecting nuclear radiations
By the end of the lesson, the learner should be able to:

explain how a diffusion cloud chamber works

Demonstrations
discussions

Radiation detectors
Comprehensive secondary physics students book 4 pages 100
Secondary physics KLB students book 4 page 173-174 
2 5
Radio-Activity
Detecting nuclear radiations
By the end of the lesson, the learner should be able to:

explain how a diffusion cloud chamber works

Demonstrations
discussions

Radiation detectors
Comprehensive secondary physics students book 4 pages 100
Secondary physics KLB students book 4 page 173-174 
3 1
Radio-Activity
Radio-active decay
By the end of the lesson, the learner should be able to:

define radio-active decay and half life

discussion

Charts on radio-active decay
Comprehensive secondary physics students book 4 pages 100-102
teachers book 4 pages 42-45
Secondary physics KLB students book 4 page 176-181 
3 2
Radio-Activity
Radio-active decay
By the end of the lesson, the learner should be able to:

define radio-active decay and half life

discussion

Charts on radio-active decay
Comprehensive secondary physics students book 4 pages 100-102
teachers book 4 pages 42-45
Secondary physics KLB students book 4 page 176-181 
3 1
Radio-Activity
Radio-active decay
By the end of the lesson, the learner should be able to:

define radio-active decay and half life

discussion

Charts on radio-active decay
Comprehensive secondary physics students book 4 pages 100-102
teachers book 4 pages 42-45
Secondary physics KLB students book 4 page 176-181 
3

Opener Exam

3 5
Radio-Activity
Hazards of radioactivity
By the end of the lesson, the learner should be able to:



Explain the dangers of radioactive emissions


discussions

diffusion cloud chamber
Comprehensive secondary physics students book 4 pages 105-106
teachers book 4 pages 42-45
Secondary physics KLB students book 4 page 182 
4 1
Radioactivity
Nuclear fission and fusion
By the end of the lesson, the learner should be able to:


Define nuclear fission and nuclear fusion
Write balanced nuclear equations
State the application of radioactivity

Discussions
Problem solving

Periodic table
Comprehensive secondary physics students book 4 pages 100-108
teachers book 4 pages 42-45
Secondary physics KLB students book 4 page 181-184 
4 2-3
Radioactivity
Electronics
Nuclear fission and fusion
Conductors and semi-conductors
By the end of the lesson, the learner should be able to:


Define nuclear fission and nuclear fusion
Write balanced nuclear equations
State the application of radioactivity


Differentiate between conductors and semi-conductors

Discussions
Problem solving

Discussions
Experiments

Periodic table

Some semi-conductors
Some insulator
Comprehensive secondary physics students book 4 pages 100-108
teachers book 4 pages 42-45
Secondary physics KLB students book 4 page 181-184 
Comprehensive secondary physics students book 4 pages 110-111
teachers book 4 pages 45-48
Secondary physics KLB students book 4 page 187-189 
4 4
Electronics
Conductors and semi-conductors
By the end of the lesson, the learner should be able to:


Differentiate between conductors and semi-conductors

Discussions
Experiments

Some semi-conductors
Some insulator
Comprehensive secondary physics students book 4 pages 110-111
teachers book 4 pages 45-48
Secondary physics KLB students book 4 page 187-189 
4 5
Electronics
Conductors and semi-conductors
By the end of the lesson, the learner should be able to:


Differentiate between conductors and semi-conductors

Discussions
Experiments

Some semi-conductors
Some insulator
Comprehensive secondary physics students book 4 pages 110-111
teachers book 4 pages 45-48
Secondary physics KLB students book 4 page 187-189 
5 1
Electronics
Intrinsic and extrinsic semi-conductors
By the end of the lesson, the learner should be able to:


Explain doping in semi-conductors
Explain the working of p-n junction diode
Distinguish between intrinsic and extrinsic semi-conductors

Discussions
Experiments

Samples of semi-conductors
Complete circuit
Transistors
Junction diode
Comprehensive secondary physics students book 4 pages 111-112
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 189-194 
5 2
Electronics
Intrinsic and extrinsic semi-conductors
By the end of the lesson, the learner should be able to:


Explain doping in semi-conductors
Explain the working of p-n junction diode
Distinguish between intrinsic and extrinsic semi-conductors

Discussions
Experiments

Samples of semi-conductors
Complete circuit
Transistors
Junction diode
Comprehensive secondary physics students book 4 pages 111-112
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 189-194 
5 1
Electronics
Intrinsic and extrinsic semi-conductors
By the end of the lesson, the learner should be able to:


Explain doping in semi-conductors
Explain the working of p-n junction diode
Distinguish between intrinsic and extrinsic semi-conductors

Discussions
Experiments

Samples of semi-conductors
Complete circuit
Transistors
Junction diode
Comprehensive secondary physics students book 4 pages 111-112
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 189-194 
5

Midterm Exam

5 5
Electronics
Characteristics of p-n junction
By the end of the lesson, the learner should be able to:



sketch the current voltage characteristics for a diode


experiments

junction diode

Comprehensive secondary physics students book 4 pages 161-117
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 189-194 
6 1
Electronics
Applications of diodes
By the end of the lesson, the learner should be able to:


explain the application of diodes in rectifications

Discussions
Questions and answers

Chart showing the application of diode
Comprehensive secondary physics students book 4 pages 117-120
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 198-201 
6 2-3
Electronics
Applications of diodes
By the end of the lesson, the learner should be able to:


explain the application of diodes in rectifications

Discussions
Questions and answers

Chart showing the application of diode
Comprehensive secondary physics students book 4 pages 117-120
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 198-201 
6 4
Electronics
Applications of diodes
By the end of the lesson, the learner should be able to:


explain the application of diodes in rectifications

Discussions
Questions and answers

Chart showing the application of diode
Comprehensive secondary physics students book 4 pages 117-120
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 198-201 
6 5
Electronics
Applications of diodes
By the end of the lesson, the learner should be able to:


explain the application of diodes in rectifications

Discussions
Questions and answers

Chart showing the application of diode
Comprehensive secondary physics students book 4 pages 117-120
teachers book 4 pages 48-52
Secondary physics KLB students book 4 page 198-201 
9

End Term Exam


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