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Form 3 2025
TERM III
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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 1
Waves II
Properties of waves
By the end of the lesson, the learner should be able to:


State and explain the properties of waves experimentally
Sketch wave fronts to illustrate the reflections

Stating and explaining the properties of waves
Sketching wave fronts illustrate reflection

Rope/wire
Various reflections
Comprehensive secondary physics students book 3 pages 67-69
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 198-203
2 2
Waves II
Diffraction, refraction and interference of waves
By the end of the lesson, the learner should be able to:


Sketch various wave fonts to illustrate their diffraction, refraction and interference

Sketching various wave fonts
Experiments to illustrate refraction, diffraction and interference

Water
Basin
Ripple
Tank
Comprehensive secondary physics students book 3 pages 70-73
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 203-212 
2 3
Waves II
Diffraction, refraction and interference of waves
By the end of the lesson, the learner should be able to:


Sketch various wave fonts to illustrate their diffraction, refraction and interference

Sketching various wave fonts
Experiments to illustrate refraction, diffraction and interference

Water
Basin
Ripple
Tank
Comprehensive secondary physics students book 3 pages 70-73
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 203-212 
2 2
Waves II
Diffraction, refraction and interference of waves
By the end of the lesson, the learner should be able to:


Sketch various wave fonts to illustrate their diffraction, refraction and interference

Sketching various wave fonts
Experiments to illustrate refraction, diffraction and interference

Water
Basin
Ripple
Tank
Comprehensive secondary physics students book 3 pages 70-73
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 203-212 
2

Opener exams

3 1
Waves II
Constructive and distractive waves
By the end of the lesson, the learner should be able to:


Explain constructive and destructive interference

Discussion on constructive and destructive interference
Experiments constructive and destructive interference

Ripple tank
Rope/wire
Comprehensive secondary physics students book 3 pages 73-74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 203-212 
3 2
Waves II
Constructive and distractive waves
By the end of the lesson, the learner should be able to:


Explain constructive and destructive interference

Discussion on constructive and destructive interference
Experiments constructive and destructive interference

Ripple tank
Rope/wire
Comprehensive secondary physics students book 3 pages 73-74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 203-212 
3 3-4
Waves II
Constructive and distractive waves
Stationary waves
By the end of the lesson, the learner should be able to:


Explain constructive and destructive interference


Describe experiments to illustrate stationary waves

Discussion on constructive and destructive interference
Experiments constructive and destructive interference

Demonstration and explaining of stationery waves

Ripple tank
Rope/wire

Wires under tension
Comprehensive secondary physics students book 3 pages 73-74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 203-212 
Comprehensive secondary physics students book 3 pages 74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 212-215 
3 5
Waves II
Stationary waves
By the end of the lesson, the learner should be able to:


Describe experiments to illustrate stationary waves

Demonstration and explaining of stationery waves

Wires under tension
Comprehensive secondary physics students book 3 pages 74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 212-215 
4 1
Waves II
Vibrating air columns
By the end of the lesson, the learner should be able to:


Describe and explain closed pipe and open pipe

Describing vibrations in close and open pipes

Open and closed pipes
Comprehensive secondary physics students book 3 pages 74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 218-220 
4 2
Waves II
Vibrating air columns
By the end of the lesson, the learner should be able to:


Describe and explain closed pipe and open pipe

Describing vibrations in close and open pipes

Open and closed pipes
Comprehensive secondary physics students book 3 pages 74
Comprehensive secondary physics teachers book 3 pages 29-32
Secondary physics KLB students book 3 page 218-220 
4 3-4
Electrostatics Ii
Electric field patterns
By the end of the lesson, the learner should be able to:


Sketch electric field patterns around charged bodies

Discussion on electric field patterns
Observing and plotting field patterns

Charts on magnetic fields
Comprehensive secondary physics students book 3 pages 76-77
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 222-225
P
4 5
Electrostatics Ii
Charge distribution on conductors
By the end of the lesson, the learner should be able to:


Describe charge distribution on conductors:
Spherical and pear shaped conductors

Discussions on charge distribution on conductors
Experiment is demonstrated/illustrate charge distribution on conductors

Vande Graaf generator
Chart showing charge distribution on different conductors
Gold leaf electroscope
Comprehensive secondary physics students book 3 pages 77-78
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 225-228 
5 1
Electrostatics Ii
Lighting arrestor
By the end of the lesson, the learner should be able to:


Explain how lightning arrestor works

Discussions on the lighting arrestor
Explanations on the lighting arrestor

Improvised lighting arrestor
Photographs of lightning arrestor
Comprehensive secondary physics students book 3 pages 79-80
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 229-230 
5 2
Electrostatics Ii
Lighting arrestor
By the end of the lesson, the learner should be able to:


Explain how lightning arrestor works

Discussions on the lighting arrestor
Explanations on the lighting arrestor

Improvised lighting arrestor
Photographs of lightning arrestor
Comprehensive secondary physics students book 3 pages 79-80
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 229-230 
5 3-4
Electrostatics Ii
Capacitance
By the end of the lesson, the learner should be able to:


Define capacitance and state its SI units
Describe the charging and discharging of a capacitor
State and explain the factors that affect the capacitance of a parallel plate capacitor

Experiments on charging and discharging capacitor
Discussion on factors affecting capacitance
Defining capacitance

Complete circuits
capacitors
Comprehensive secondary physics students book 3 pages 80-82
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 230-237
5 5
Electrostatics Ii
Combinations of capacitors
By the end of the lesson, the learner should be able to:


Derive the effective capacitance of capacitors in series and parallel

Deriving effective capacitance of capacitors in series and parallel
Solving problems
Discussion in the effective capacitance

Capacitors in series and parallel connections
Charts showing complete circuits
Comprehensive secondary physics students book 3 pages 80-82
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 237-241 
6 1
Electrostatics Ii
Energy stored in a charged capacitor
By the end of the lesson, the learner should be able to:


Describe the energy stored in a charged capacitor

Describing the energy stored in a charged capacitor

Capacitors
Dry cells
Charts on capacitors used
Comprehensive secondary physics students book 3 pages 82
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 244 
6 2
Electrostatics
Application of capacitors
By the end of the lesson, the learner should be able to:


State and explain the applications of capacitors

Discussions on applications of capacitors
Stating and explaining applications of capacitors

Charts on the use of capacitors
capacitors
Comprehensive secondary physics students book 3 pages 82-84
Comprehensive secondary physics teachers book 3 pages 34-39
Secondary physics KLB students book 3 page 244 
6 3-4
Quantity Of Heat
Heat capacity Specific heat capacity Units of heat capacity
Change of state
By the end of the lesson, the learner should be able to:

By the end of the lesson the learner should be able to
Define heat capacity and specific heat capacity and derive their SI units

By the end of the lesson the learner should be able to define and explain latent heat of fusion, specific latent heat of fusion
Define and explain latent heat of vaporization, specific latent heat of vaporization
State the SI units of latent heat of fusion and latent heat of vaporization

Experiments on heat capacity and specific heat capacity
Discussion on heat capacity and specific h eat capacity
Defining heat capacity and heat specific heat capacity

Experiments on latent heat of fusion and latent heat of vaporization
Discussion on latent heat of fusion and latent heat of vaporization

Source of heat
Water
Lagged can
Thermometer


File
Water
Thermometer
Weighing balance
Source of heat
Comprehensive secondary physics students book 3 pages 93-96
Comprehensive secondary physics teachers book 3 pages 42-46
Secondary physics KLB students book 3 page 246-260-271 
Comprehensive secondary physics students book 3 pages 96-97
Comprehensive secondary physics teachers book 3 pages 42-46
Secondary physics KLB students book 3 page 246-271-281 
6 5
Quantity Of Heat
Change of state
By the end of the lesson, the learner should be able to:

By the end of the lesson the learner should be able to define and explain latent heat of fusion, specific latent heat of fusion
Define and explain latent heat of vaporization, specific latent heat of vaporization
State the SI units of latent heat of fusion and latent heat of vaporization

Experiments on latent heat of fusion and latent heat of vaporization
Discussion on latent heat of fusion and latent heat of vaporization

File
Water
Thermometer
Weighing balance
Source of heat
Comprehensive secondary physics students book 3 pages 96-97
Comprehensive secondary physics teachers book 3 pages 42-46
Secondary physics KLB students book 3 page 246-271-281 
7 1
Quantity Of Heat
Boiling and melting
By the end of the lesson, the learner should be able to:


Distinguish between boiling and melting
State the factors affecting melting points and boiling points of a substance
Describe the working of a pressure cooker and a refrigerator

Distinguishing between boiling and melting points
Stating factors affecting boiling and melting points
Experiments to illustrate boiling and melting point

Pressure cooker
Refrigerator
Charts on melting and boiling points
Ice
Heat
Sufuria
water
Comprehensive secondary physics students book 3 pages 97-101
Comprehensive secondary physics teachers book 3 pages 42-46
Secondary physics KLB students book 3 page 246-282-288 
7 2
The Gas Law?s
The kinetic theory of gases
By the end of the lesson, the learner should be able to:


Explain law absolute zero temperature may be obtained from pressure and temp. graphs

Discussions on the absolute zero temperature from pressure using kinetic theory of gases

Graph paper
Clinical thermometer
Working out sums
Comprehensive secondary physics students book 3 pages 108-110
Comprehensive secondary physics teachers book 3 pages 47-50
Secondary physics KLB students book 3 page 303 
7-8

End of year exams

9

Marking &closing


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