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SCHEME OF WORK
Physics
Form 3 2026
TERM I
School


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WK LSN TOPIC SUB-TOPIC OBJECTIVES T/L ACTIVITIES T/L AIDS REFERENCE REMARKS
2 1
Linear Motion
Introduction to Linear Motion and Basic Concepts
Speed and Velocity Calculations
By the end of the lesson, the learner should be able to:
Define distance, displacement, speed, velocity and acceleration
-Distinguish between scalar and vector quantities
-State the SI units for distance, displacement, speed, velocity and acceleration
-Explain the difference between distance and displacement using examples
Q/A on types of motion students observe daily
-Demonstration of linear motion using trolley on runway
-Discussion on difference between distance and displacement using school compound examples
-Drawing diagrams to show distance vs displacement
-Practical activity: Students walk different paths between two points to measure distance vs displacement
Trolley
-Runway/metre rule
-Chalk for marking
-Charts showing motion types
-School compound map
-Measuring tape
Speedometer (if available)
-Stopwatches
-Calculator
-Worked examples charts
-School field for practical work
KLB Secondary Physics Form 3, Pages 1-4
2 2
Linear Motion
Acceleration and Equations of Motion
Motion-Time Graphs (Distance-Time and Speed-Time)
Velocity-Time Graphs and Acceleration
Measuring Speed, Velocity and Acceleration Using Ticker-Timer
Motion Under Gravity - Free Fall
By the end of the lesson, the learner should be able to:
Define acceleration and deceleration
-Calculate acceleration using change in velocity and time
-Apply the three equations of linear motion
-Solve problems involving uniformly accelerated motion
Q/A review on speed and velocity
-Demonstration of accelerated motion using trolley on inclined plane
-Derivation of three equations of motion: v=u+at, s=ut+½at², v²=u²+2as
-Worked examples using each equation
-Problem-solving practice with real scenarios
-Safety discussion for practical work
Trolley
-Inclined plane
-Stopwatch
-Metre rules
-Chart showing equation derivations
-Calculator
-Worked examples
Graph paper
-Rulers
-Trolley
-Charts showing different graph types
-Data tables for plotting
-Charts showing v-t graphs
-Sample data sets
Ticker-timer
-Ticker-tape
-Runway
-Power supply
-Scissors
-Cellotape
-Graph paper
Various objects for dropping
-Measuring tape
-Safety equipment
-Charts showing free fall
-Worked examples on board
KLB Secondary Physics Form 3, Pages 4-5, 19-22
2 3
Linear Motion
Refraction of Light
Refraction of Light
Horizontal Projection and Determining g Using Simple Pendulum
Introduction to Refraction and Basic Phenomena
Laws of Refraction and Snell's Law
By the end of the lesson, the learner should be able to:
Analyze motion of horizontally projected objects
-Calculate range and time of flight for horizontal projection
-Determine acceleration due to gravity using simple pendulum
-Apply pendulum formula T = 2π√(l/g)
Review free fall concepts through Q/A
-Demonstration of horizontal projection using ball rolling off table
-Analysis of projectile motion: horizontal and vertical components
-Setup and timing of simple pendulum
-Multiple readings for different pendulum lengths
-Calculating g using T² vs l graph
-Discussion on experimental errors and precautions
Ball
-Table
-Measuring tape
-Stopwatch
-Simple pendulum setup
-Strings of different lengths
-Masses
-Clamp and stand
-Graph paper
-Calculator
Glass blocks
-Beakers
-Water
-Coins
-Sticks/pencils
-Pins
-White paper
-Ray box (if available)
-Charts showing refraction examples
-Protractor
-Ruler
-Ray box
-Soft board
-Drawing pins
KLB Secondary Physics Form 3, Pages 25-27
2 4
Refraction of Light
Absolute and Relative Refractive Index
Real and Apparent Depth
Experimental Determination of Refractive Index
By the end of the lesson, the learner should be able to:
Define absolute and relative refractive index
-Relate refractive index to speed of light in different media
-Apply the relationship n = c/v
-Calculate relative refractive index between two media
-Solve problems involving refractive indices
Q/A review on Snell's law and calculations
-Discussion on light speed in different media
-Derivation of n = c/v relationship
-Explanation of absolute vs relative refractive index
-Worked examples with multiple media
-Problem-solving session with real materials
-Group work on refractive index calculations
Calculator
-Charts showing refractive indices
-Worked examples
-Reference tables
-Graph paper
-Different transparent materials
-Speed of light reference chart
Beakers
-Water
-Coins
-Rulers
-Pins
-Travelling microscope (if available)
-Glass blocks
-Colored chalk dust
-Calculator
-Measuring cylinders
Glass blocks
-Cork holders
-Beakers
-White paper
-Clamp and stand
-Measuring tape
KLB Secondary Physics Form 3, Pages 39-43
3 1
Refraction of Light
Critical Angle and Total Internal Reflection
Applications of Total Internal Reflection - Optical Devices
By the end of the lesson, the learner should be able to:
Define critical angle
-State conditions for total internal reflection
-Derive relationship between critical angle and refractive index
-Calculate critical angle for different materials
-Explain total internal reflection using ray diagrams
Review experimental methods through Q/A
-Demonstration: increasing angle of incidence in glass-air interface
-Observation of critical angle and total internal reflection
-Derivation of sin c = 1/n relationship
-Worked examples calculating critical angles
-Investigation using semi-circular glass block
-Discussion on applications of total internal reflection
Semi-circular glass block
-Ray box
-White paper
-Protractor
-Pins
-Calculator
-Charts showing TIR
-Water
-Different transparent blocks
45° prisms
-Periscope model
-Optical fiber samples
-Mirrors for comparison
-Transparent containers
-Charts showing optical instruments
-Binoculars (if available)
KLB Secondary Physics Form 3, Pages 51-55
3 2
Refraction of Light
Mirage and Atmospheric Refraction
Dispersion of White Light
Recombination of Spectrum and Problem Solving
By the end of the lesson, the learner should be able to:
Explain formation of mirage using refraction principles
-Describe atmospheric refraction effects
-Understand continuous refraction in varying density media
-Explain why sun appears above horizon after sunset
-Discuss polar mirages and their formation
Review TIR applications through Q/A
-Demonstration of refraction in liquids of different densities
-Explanation of hot air effects on light path
-Discussion on desert mirages and road mirages
-Atmospheric refraction effects on sun position
-Analysis of continuous refraction in varying media
-Drawing ray diagrams for mirage formation
Liquids of different densities
-Transparent containers
-Heat source (safe)
-Charts showing mirage formation
-Diagrams of atmospheric refraction
-Pictures of mirages
-Ray diagrams
Triangular glass prism
-White light source
-Screen
-Ray box
-CD/DVD
-White paper
-Ruler
-Charts showing spectrum
-Pictures of rainbows
Second triangular prism
-Concave mirror
-Newton's disc
-Motor (for spinning disc)
-Calculator
-Past exam papers
-Comprehensive problem sets
-Review charts
-All previous apparatus for revision
KLB Secondary Physics Form 3, Pages 55-56
3 3
Newton's Laws of Motion
Newton's First Law and Inertia
Momentum and its Applications
By the end of the lesson, the learner should be able to:
State Newton's first law of motion
-Define inertia and relate it to mass
-Explain the concept of balanced and unbalanced forces
-Give examples of Newton's first law in daily life
-Understand the need for seat belts and safety devices
Q/A review on forces from previous studies
-Demonstration: cardboard and coin experiment
-Demonstration: hitting bottom coin from stack
-Discussion on inertia and its relationship to mass
-Explanation of seat belts and safety devices in vehicles
-Analysis of forces acting on aircraft in flight
Cardboard
-Glass tumbler
-Coins
-Charts showing aircraft forces
-Pictures of safety devices
-Demonstration materials
-Balance
Calculator
-Toy cars of different masses
-Stopwatch
-Measuring tape
-Worked examples charts
-Problem worksheets
KLB Secondary Physics Form 3, Pages 65-67
3 4
Newton's Laws of Motion
Newton's Second Law of Motion
Experimental Verification of Newton's Second Law
Impulse and Change in Momentum
By the end of the lesson, the learner should be able to:
State Newton's second law of motion
-Derive the relationship F = ma
-Define the Newton as unit of force
-Understand rate of change of momentum
-Apply F = ma to solve problems
Q/A on momentum concepts
-Derivation of F = ma from Newton's second law
-Definition of the Newton using F = ma
-Demonstration using ticker-timer and trolley
-Worked examples applying F = ma
-Problem-solving session with force calculations
Ticker-timer
-Trolley
-Runway
-Elastic cords
-Masses
-Calculator
-Force diagrams
-Worked examples
-Ticker tape
-Various masses
-Scissors
-Graph paper
-Rulers
Graph paper
-Force-time graph examples
-Charts showing car safety features
-Sports equipment examples
KLB Secondary Physics Form 3, Pages 68-74
4 1
Newton's Laws of Motion
Newton's Third Law of Motion
Applications of Newton's Laws - Lifts and Apparent Weight
By the end of the lesson, the learner should be able to:
State Newton's third law of motion
-Understand action and reaction pairs
-Explain that forces occur in pairs
-Apply third law to various situations
-Analyze motion in different scenarios
Review impulse concepts through Q/A
-Demonstration: walking and floor interaction
-Demonstration: jumping from boat scenario
-Discussion on action-reaction pairs
-Examples from daily life: walking, swimming, rocket propulsion
-Problem-solving involving third law
Books for pressure demonstration
-Spring balances
-Trolleys
-String
-Charts showing action-reaction examples
-Pictures of rockets and jets
Spring balance
-Mass
-Lift diagrams
-Calculator
-Free-body diagram charts
-Worked examples
-Problem worksheets
KLB Secondary Physics Form 3, Pages 75-80
4 2
Newton's Laws of Motion
Conservation of Linear Momentum
Applications of Momentum Conservation - Rockets and Jets
Friction - Types and Laws
By the end of the lesson, the learner should be able to:
State the law of conservation of momentum
-Apply conservation of momentum to collisions
-Distinguish between elastic and inelastic collisions
-Solve collision problems
-Understand momentum in explosions
Review lift problems through Q/A
-Statement and explanation of conservation of momentum
-Demonstration: colliding trolleys or balls
-Analysis of elastic and inelastic collisions
-Worked examples on collision problems
-Discussion on explosions and momentum conservation
Trolleys
-Plasticine
-Marbles
-Spring balance
-Measuring tape
-Stopwatch
-Calculator
-Collision demonstration apparatus
Balloons
-String
-Straws
-Garden sprinkler (if available)
-Charts showing rocket/jet engines
-Worked examples
Wooden blocks
-Different surfaces
-Weights
-Lubricants
-Sandpaper
-Charts showing friction applications
-Ball bearings
KLB Secondary Physics Form 3, Pages 80-86
4 3
Newton's Laws of Motion
Work, Energy, Power and Machines
Viscosity and Terminal Velocity
Sources of Energy
By the end of the lesson, the learner should be able to:
Define viscosity and explain its effects
-Understand motion of objects through fluids
-Explain terminal velocity concept
-Analyze forces on falling objects in fluids
-Investigate factors affecting terminal velocity
Q/A on friction concepts
-Demonstration: steel ball falling through different liquids
-Explanation of viscous drag and terminal velocity
-Analysis of forces: weight, upthrust, and viscous drag
-Investigation of terminal velocity using glycerine
-Discussion on applications: parachutes, rain drops
Tall measuring cylinder
-Glycerine
-Steel ball bearings
-Water
-Stopwatch
-Rubber bands
-Ruler
-Different viscous liquids
Charts showing energy sources
-Pictures of solar panels, wind mills
-Samples: coal, wood, batteries
-Energy source classification cards
-Local energy examples
-Conservation posters
KLB Secondary Physics Form 3, Pages 90-93
4 4
Work, Energy, Power and Machines
Forms of Energy
Energy Transformation and Conservation
Work and its Calculation
By the end of the lesson, the learner should be able to:
Define different forms of energy
-Identify chemical, mechanical, heat, electrical, and wave energy
-Give examples of each form of energy
-Understand energy exists in various forms
-Relate forms of energy to daily experiences
Review energy sources through Q/A
-Introduction to different forms of energy
-Demonstration: chemical energy in battery, mechanical energy in moving objects
-Discussion on heat energy from friction
-Examples of electrical energy in appliances
-Identification of wave energy: light, sound
Battery and bulb
-Moving trolley
-Rubbing blocks for friction
-Electrical appliances
-Tuning fork
-Torch
-Energy forms charts
-Real objects showing energy forms
Dynamo
-Battery
-Solar cell (if available)
-Charts showing energy transformations
-Transducer examples
-Energy flow diagrams
-Hydroelectric model setup
Spring balance
-Masses
-Trolley
-Measuring tape
-Calculator
-Force and displacement demonstrations
-Worked examples charts
-Problem worksheets
KLB Secondary Physics Form 3, Pages 95-96
5 1
Work, Energy, Power and Machines
Work with Variable Forces
Gravitational Potential Energy
By the end of the lesson, the learner should be able to:
Calculate work done by variable forces
-Interpret force-distance graphs
-Find work done using area under graphs
-Understand positive and negative work
-Apply graphical methods to work calculations
Q/A review on work calculations
-Introduction to variable forces
-Plotting force-distance graphs
-Demonstration: stretching spring with varying force
-Calculation of areas under graphs
-Worked examples with triangular and trapezoidal areas
Graph paper
-Springs
-Force meter
-Ruler
-Calculator
-Force-distance graph examples
-Different shaped area examples
-Demonstration springs
Masses of different sizes
-Measuring tape
-Spring balance
-Height measurement setup
-Worked examples
-Gravitational P.E. charts
KLB Secondary Physics Form 3, Pages 99-100
5 2
Work, Energy, Power and Machines
Kinetic Energy
Conservation of Mechanical Energy
Power and its Applications
By the end of the lesson, the learner should be able to:
Define kinetic energy
-Derive K.E. = ½mv²
-Calculate kinetic energy of moving objects
-Understand relationship between work and kinetic energy
-Apply work-energy theorem
Q/A on potential energy concepts
-Demonstration: moving trolleys at different speeds
-Derivation of K.E. = ½mv² using work-energy theorem
-Worked examples on kinetic energy calculations
-Discussion on work-energy theorem
-Problem-solving session on kinetic energy
Trolleys
-Stopwatch
-Measuring tape
-Spring balance
-Calculator
-Kinetic energy demonstration setup
-Speed measurement apparatus
Simple pendulum setup
-Masses
-Pendulum energy charts
-Conservation examples
-String and bob
Stopwatch
-Electrical appliances for power ratings
-Stairs for practical work
-Power calculation charts
KLB Secondary Physics Form 3, Pages 102-105
5 3
Work, Energy, Power and Machines
Simple Machines - Introduction and Terminology
Levers - Types and Applications
Pulleys - Fixed and Movable
Inclined Planes and Screws
By the end of the lesson, the learner should be able to:
Define machines and their purposes
-Understand load, effort, and fulcrum
-Define mechanical advantage, velocity ratio, and efficiency
-Calculate M.A., V.R., and efficiency
-Understand relationship between these quantities
Review power concepts through Q/A
-Introduction to machines and their uses
-Demonstration: simple lever showing load, effort, fulcrum
-Definition and calculation of M.A., V.R., and efficiency
-Worked examples on machine calculations
-Discussion on why efficiency is always less than 100%
Simple lever setup
-Masses for loads
-Spring balance
-Ruler
-Calculator
-Machine terminology charts
-Efficiency calculation examples
Various lever examples
-Rulers
-Masses
-Fulcrum supports
-Lever classification charts
-Daily life lever examples
Pulley blocks
-String
-Pulley arrangements
-Block and tackle setup
-Pulley system diagrams
Inclined plane setup
-Trolley or wooden block
-Measuring tape
-Protractor
-Screw examples
-Various inclined plane models
KLB Secondary Physics Form 3, Pages 108-112

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