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SCHEME OF WORK
Physics
Grade 10 2026
TERM III
School


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WK LSN STRAND SUB-STRAND LESSON LEARNING OUTCOMES LEARNING EXPERIENCES KEY INQUIRY QUESTIONS LEARNING RESOURCES ASSESSMENT METHODS REFLECTION
2 1
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Basic concepts
By the end of the lesson, the learner should be able to:
- Explain the meaning of energy, work and power
- Distinguish between the three concepts
- Relate to real-life examples like lifting objects and running
In groups, learners are guided to:
- Discuss with peers the meaning of energy, work, power and machines
- Give examples from daily life
- Record definitions
How do machines make work easier?
- Triumph Physics Grade 10 pg. 100-102
- Digital devices
- Reference books
- Exercise books
- Oral questions - Written assignments - Group discussions
2 2
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Basic concepts
By the end of the lesson, the learner should be able to:
- Explain the meaning of energy, work and power
- Distinguish between the three concepts
- Relate to real-life examples like lifting objects and running
In groups, learners are guided to:
- Discuss with peers the meaning of energy, work, power and machines
- Give examples from daily life
- Record definitions
How do machines make work easier?
- Triumph Physics Grade 10 pg. 100-102
- Digital devices
- Reference books
- Exercise books
- Oral questions - Written assignments - Group discussions
2 3-4
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Work done
Energy, Work, Power and Machines - Forms of energy
By the end of the lesson, the learner should be able to:
- Explain work as force × distance
- Calculate work done using W = F × d
- Solve numerical problems on work
- Explain energy as ability to do work
- Identify different forms of energy
- Relate energy sources to renewable and non-renewable
In groups, learners are guided to:
- Carry out activities to demonstrate work
- Push objects across the room
- Calculate work done in different scenarios
- Discuss different forms of energy
- Give examples of energy sources
- Classify sources as renewable or non-renewable
How do machines make work easier?
- Triumph Physics Grade 10 pg. 102-105
- Books
- Spring balance
- Ruler
- Calculator
- Triumph Physics Grade 10 pg. 105-106
- Digital devices
- Charts
- Reference books
- Pictures
- Practical assessment - Problem solving - Written tests
- Oral questions - Written assignments - Observation
2 5
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Forms of energy
By the end of the lesson, the learner should be able to:
- Explain energy as ability to do work
- Identify different forms of energy
- Relate energy sources to renewable and non-renewable
In groups, learners are guided to:
- Discuss different forms of energy
- Give examples of energy sources
- Classify sources as renewable or non-renewable
How do machines make work easier?
- Triumph Physics Grade 10 pg. 105-106
- Digital devices
- Charts
- Reference books
- Pictures
- Oral questions - Written assignments - Observation
3 1
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Mechanical energy
By the end of the lesson, the learner should be able to:
- Explain gravitational potential energy using PE = mgh
- Explain kinetic energy using KE = ½mv²
- Calculate potential and kinetic energy
In groups, learners are guided to:
- Drop tennis ball from different heights
- Observe energy transformation
- Calculate PE and KE using formulas
How do machines make work easier?
- Triumph Physics Grade 10 pg. 106-109
- Tennis ball
- Metre rule
- Calculator
- Exercise books
- Practical assessment - Problem solving - Written tests
3 2
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Energy transformations
By the end of the lesson, the learner should be able to:
- Demonstrate transformation of mechanical energy
- Explain energy changes in swinging pendulum
- Relate to real-life applications like roller coasters
In groups, learners are guided to:
- Carry out activities to demonstrate energy transformation using pendulum
- Observe potential to kinetic energy changes
- Discuss energy at different points
How do machines make work easier?
- Triumph Physics Grade 10 pg. 109-112
- Pendulum (mass and string)
- Retort stand
- Clamp
- Digital devices
- Practical assessment - Observation - Oral questions
3 3-4
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Energy transformations
Energy, Work, Power and Machines - Law of conservation
By the end of the lesson, the learner should be able to:
- Demonstrate transformation of mechanical energy
- Explain energy changes in swinging pendulum
- Relate to real-life applications like roller coasters
- Explain the law of conservation of energy
- Demonstrate energy conservation using experiments
- Apply conservation law to solve problems
In groups, learners are guided to:
- Carry out activities to demonstrate energy transformation using pendulum
- Observe potential to kinetic energy changes
- Discuss energy at different points
- Carry out experiments to demonstrate conservation (swinging pendulum, ball thrown upwards)
- Calculate total energy at different points
- Verify energy is conserved
How do machines make work easier?
- Triumph Physics Grade 10 pg. 109-112
- Pendulum (mass and string)
- Retort stand
- Clamp
- Digital devices
- Triumph Physics Grade 10 pg. 112-115
- Pendulum
- Ball
- Marble
- Ramp
- Calculator
- Practical assessment - Observation - Oral questions
- Practical assessment - Problem solving - Written tests
3 5
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Law of conservation
By the end of the lesson, the learner should be able to:
- Explain the law of conservation of energy
- Demonstrate energy conservation using experiments
- Apply conservation law to solve problems
In groups, learners are guided to:
- Carry out experiments to demonstrate conservation (swinging pendulum, ball thrown upwards)
- Calculate total energy at different points
- Verify energy is conserved
How do machines make work easier?
- Triumph Physics Grade 10 pg. 112-115
- Pendulum
- Ball
- Marble
- Ramp
- Calculator
- Practical assessment - Problem solving - Written tests
4 1
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Vehicle energy systems
By the end of the lesson, the learner should be able to:
- Identify energy transformations in vehicles
- Explain chemical to mechanical energy conversion
- Appreciate safety measures in vehicles
In groups, learners are guided to:
- Visit nearby garage and observe vehicle components
- Identify energy transformations
- Discuss safety precautions
How do machines make work easier?
- Triumph Physics Grade 10 pg. 115-117
- Nearby garage
- Exercise books
- Pens
- Resource persons
- Observation - Oral questions - Written reports
4 2
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Rate of doing work
By the end of the lesson, the learner should be able to:
- Explain power as rate of doing work
- Calculate power using P = W/t
- Solve numerical problems on power
In groups, learners are guided to:
- Carry out activities to measure power (running up stairs)
- Calculate work done and time taken
- Determine power output
How do machines make work easier?
- Triumph Physics Grade 10 pg. 117-119
- Stopwatch
- Metre rule
- Weighing scale
- Staircase
- Calculator
- Practical assessment - Problem solving - Written tests
4 3-4
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Rate of doing work
Energy, Work, Power and Machines - MA, VR and efficiency
By the end of the lesson, the learner should be able to:
- Explain power as rate of doing work
- Calculate power using P = W/t
- Solve numerical problems on power
- Explain mechanical advantage as Load/Effort
- Explain velocity ratio and efficiency
- Calculate MA, VR and efficiency
In groups, learners are guided to:
- Carry out activities to measure power (running up stairs)
- Calculate work done and time taken
- Determine power output
- Discuss the meaning of MA, VR and efficiency
- Use mathematical relationships
- Solve numerical problems
How do machines make work easier?
- Triumph Physics Grade 10 pg. 117-119
- Stopwatch
- Metre rule
- Weighing scale
- Staircase
- Calculator
- Triumph Physics Grade 10 pg. 119-122
- Digital devices
- Reference books
- Calculator
- Exercise books
- Practical assessment - Problem solving - Written tests
- Written tests - Problem solving - Oral questions
4 5
Mechanics and Thermal Physics
Energy, Work, Power and Machines - MA, VR and efficiency
By the end of the lesson, the learner should be able to:
- Explain mechanical advantage as Load/Effort
- Explain velocity ratio and efficiency
- Calculate MA, VR and efficiency
In groups, learners are guided to:
- Discuss the meaning of MA, VR and efficiency
- Use mathematical relationships
- Solve numerical problems
How do machines make work easier?
- Triumph Physics Grade 10 pg. 119-122
- Digital devices
- Reference books
- Calculator
- Exercise books
- Written tests - Problem solving - Oral questions
5 1
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Types of levers
By the end of the lesson, the learner should be able to:
- Describe levers and their types
- Explain principle of moments in levers
- Calculate VR and MA of levers
In groups, learners are guided to:
- Search for information on levers
- Identify different classes of levers
- Calculate VR = effort arm/load arm
How do machines make work easier?
- Triumph Physics Grade 10 pg. 122-125
- Digital devices
- Pictures of levers
- Reference books
- Calculator
- Written tests - Problem solving - Oral questions
5 2
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Inclined plane
By the end of the lesson, the learner should be able to:
- Explain how inclined plane works
- Calculate VR = length/height
- Investigate factors affecting MA
In groups, learners are guided to:
- Investigate how length affects MA of inclined plane
- Use trolley on ramp
- Record data and calculate MA
How do machines make work easier?
- Triumph Physics Grade 10 pg. 125-128
- Trolley
- Inclined plane
- Weights
- Pulley
- Ruler
- Practical assessment - Data analysis - Written tests
5 3-4
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Inclined plane
Energy, Work, Power and Machines - Wheel and axle system
By the end of the lesson, the learner should be able to:
- Explain how inclined plane works
- Calculate VR = length/height
- Investigate factors affecting MA
- Explain how wheel and axle works
- Calculate VR = radius of wheel/radius of axle
- Relate to winches and door knobs
In groups, learners are guided to:
- Investigate how length affects MA of inclined plane
- Use trolley on ramp
- Record data and calculate MA
- Investigate wheel and axle using rod and handle
- Apply force at different positions
- Calculate VR and MA
How do machines make work easier?
- Triumph Physics Grade 10 pg. 125-128
- Trolley
- Inclined plane
- Weights
- Pulley
- Ruler
- Triumph Physics Grade 10 pg. 128-130
- Rod with handle
- Thread
- Weights
- Ruler
- Calculator
- Practical assessment - Data analysis - Written tests
- Practical assessment - Problem solving - Written tests
5 5
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Gear systems
By the end of the lesson, the learner should be able to:
- Explain how gears work
- Calculate VR = teeth on driven/teeth on driver
- Relate to bicycles and clocks
In groups, learners are guided to:
- Search for information on gear systems
- Discuss how gears change speed and force
- Solve numerical problems
How do machines make work easier?
- Triumph Physics Grade 10 pg. 130-132
- Digital devices
- Pictures of gears
- Reference books
- Calculator
- Written tests - Problem solving - Oral questions
6 1
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Hydraulic systems
By the end of the lesson, the learner should be able to:
- Explain how hydraulic lift works
- Calculate VR = (R/r)²
- Appreciate use in car jacks and garage lifts
In groups, learners are guided to:
- Discuss hydraulic lift principle
- Calculate forces using Pascal's principle
- Solve numerical problems
How do machines make work easier?
- Triumph Physics Grade 10 pg. 132-134
- Digital devices
- Pictures of hydraulic lifts
- Calculator
- Reference books
- Written tests - Problem solving - Oral questions
6 2
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Hydraulic systems
By the end of the lesson, the learner should be able to:
- Explain how hydraulic lift works
- Calculate VR = (R/r)²
- Appreciate use in car jacks and garage lifts
In groups, learners are guided to:
- Discuss hydraulic lift principle
- Calculate forces using Pascal's principle
- Solve numerical problems
How do machines make work easier?
- Triumph Physics Grade 10 pg. 132-134
- Digital devices
- Pictures of hydraulic lifts
- Calculator
- Reference books
- Written tests - Problem solving - Oral questions
6 3-4
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Hydraulic systems
Energy, Work, Power and Machines - Other simple machines
By the end of the lesson, the learner should be able to:
- Explain how hydraulic lift works
- Calculate VR = (R/r)²
- Appreciate use in car jacks and garage lifts
- Explain pulleys, screws and pulley belts
- Calculate VR for different pulley systems
- Relate to real applications
In groups, learners are guided to:
- Discuss hydraulic lift principle
- Calculate forces using Pascal's principle
- Solve numerical problems
- Search for information on pulleys, screws and belts
- Discuss their working principles
- Calculate VR for each type
How do machines make work easier?
- Triumph Physics Grade 10 pg. 132-134
- Digital devices
- Pictures of hydraulic lifts
- Calculator
- Reference books
- Triumph Physics Grade 10 pg. 134-138
- Digital devices
- Pictures
- Reference books
- Calculator
- Written tests - Problem solving - Oral questions
- Written tests - Problem solving - Presentations
6 5
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Complex machines
By the end of the lesson, the learner should be able to:
- Describe use of machines in treadmills, elevators and escalators
- Explain simple machines in excavators
- Appreciate machines in making work easier
In groups, learners are guided to:
- Search for information on complex machines
- Identify simple machines in them
- Discuss applications
How do machines make work easier?
- Triumph Physics Grade 10 pg. 138-141
- Digital devices
- Pictures
- Reference books
- Charts
- Presentations - Oral questions - Written assignments
7 1
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Making machines
By the end of the lesson, the learner should be able to:
- Construct simple machines using local materials
- Test functionality of constructed machines
- Appreciate practical applications of machines
In groups, learners are guided to:
- Use locally available materials to construct simple machines
- Test the machines
- Present to class for assessment
How do machines make work easier?
- Triumph Physics Grade 10 pg. 141
- Wood
- Ropes
- Pulleys
- Nails
- Local materials
- Project work - Practical assessment - Peer assessment
7 2
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Making machines
By the end of the lesson, the learner should be able to:
- Construct simple machines using local materials
- Test functionality of constructed machines
- Appreciate practical applications of machines
In groups, learners are guided to:
- Use locally available materials to construct simple machines
- Test the machines
- Present to class for assessment
How do machines make work easier?
- Triumph Physics Grade 10 pg. 141
- Wood
- Ropes
- Pulleys
- Nails
- Local materials
- Project work - Practical assessment - Peer assessment
7 3-4
Mechanics and Thermal Physics
Energy, Work, Power and Machines - Review
By the end of the lesson, the learner should be able to:
- Solve problems on energy, work, power and machines
- Apply concepts to real situations
- Demonstrate understanding of all topics
In groups, learners are guided to:
- Solve numerical problems
- Answer revision questions
- Discuss challenging concepts
How do machines make work easier?
- Triumph Physics Grade 10 pg. 142
- Exercise books
- Calculators
- Past papers
- Written tests - Problem solving - Self-assessment
7 5
Waves and Optics
Properties of Waves - Wave properties in real-life situations
By the end of the lesson, the learner should be able to:
- Define wave properties including rectilinear propagation, reflection, refraction, diffraction and interference
- Identify examples of wave properties in everyday life
- Relate wave properties to real-life applications such as mirrors, lenses and sound systems
In groups, learners are guided to:
- Brainstorm on what was learnt in Grade 9 about waves
- Use digital devices or reference books to search for the meaning of wave properties
- Copy and complete a table showing wave properties and their applications
- Present findings on properties of waves in a class discussion
How do wave properties affect our daily experiences with light and sound?
- Triumph Physics 10 pg. 139
- Digital devices
- Reference books
- Writing materials
- Oral questions - Observation - Written assignments
8 1
Waves and Optics
Properties of Waves - Demonstrating wave properties using a ripple tank
Properties of Waves - Rectilinear propagation of waves
By the end of the lesson, the learner should be able to:
- Identify the parts of a ripple tank and state their functions
- Set up a ripple tank for wave demonstration
- Connect wave patterns observed in a ripple tank to natural phenomena like water waves at the beach
In groups, learners are guided to:
- Observe a ripple tank and its components
- Label key parts of the ripple tank
- Copy and complete a table showing parts and functions of a ripple tank
- Fill the tank with water and test wave generation
What role does each part of a ripple tank play in demonstrating wave behaviour?
- Triumph Physics 10 pg. 141
- Ripple tank with components
- Bar and ball dippers
- Light source
- White screen
- Triumph Physics 10 pg. 143
- Ripple tank
- Manila paper
- Markers
- Observation - Oral questions - Practical assessment
8 2
Waves and Optics
Properties of Waves - Reflection of waves
By the end of the lesson, the learner should be able to:
- State the law of reflection
- Demonstrate reflection of waves using different shaped barriers
- Relate wave reflection to everyday applications like mirrors, periscopes and acoustic design
In groups, learners are guided to:
- Generate plane waves and observe reflection off straight barriers
- Measure and compare angles of incidence and reflection
- Observe reflection patterns using concave and convex barriers
- Sketch wave patterns before and after reflection
How does the shape of a barrier affect the reflection pattern of waves?
- Triumph Physics 10 pg. 144
- Ripple tank
- Metal barriers (straight, concave, convex)
- Ruler
- Manila paper
- Practical assessment - Observation - Oral questions
8 3-4
Waves and Optics
Properties of Waves - Refraction of waves
Properties of Waves - Diffraction of waves
By the end of the lesson, the learner should be able to:
- Explain refraction as bending of waves due to change in speed
- Demonstrate refraction of waves in a ripple tank
- Connect refraction to how lenses work in eyeglasses, cameras and microscopes
- Define diffraction as bending of waves around obstacles or through gaps
- Demonstrate diffraction using a ripple tank
- Relate diffraction to hearing sound around corners and Wi-Fi signal distribution
In groups, learners are guided to:
- Place rectangular plastic sheets to create shallow water regions
- Observe how wave speed and direction change at boundaries
- Sketch wave patterns showing refraction
- Discuss why sound travels farther at night than during the day
- Position metal barriers with gaps in the ripple tank
- Observe wave spreading after passing through gaps of different sizes
- Observe diffraction around obstacles and at edges
- Sketch diffraction patterns and discuss applications
Why do waves bend when they move from one medium to another?
How does the size of an opening affect the amount of wave diffraction?
- Triumph Physics 10 pg. 147
- Ripple tank
- Clear plastic sheets (rectangular and convex)
- Manila paper
- Markers
- Triumph Physics 10 pg. 150
- Ripple tank
- Metal barriers with gaps
- Manila paper
- Markers
- Practical assessment - Written assignments - Observation
- Practical assessment - Observation - Oral questions
8 5
Waves and Optics
Properties of Waves - Interference of waves
Properties of Waves - Formation and properties of stationary waves
By the end of the lesson, the learner should be able to:
- Explain constructive and destructive interference
- Demonstrate interference patterns using two spherical dippers
- Connect interference to noise-cancelling headphones and hologram technology
In groups, learners are guided to:
- Attach two spherical dippers to the vibrator
- Observe alternating bright and dark bands formed
- Sketch wave patterns labelling regions of constructive and destructive interference
- Discuss applications of interference in everyday life
What causes some regions to have louder sound while others are quieter when two speakers play the same tone?
- Triumph Physics 10 pg. 152
- Ripple tank
- Two spherical dippers
- Manila paper
- Markers
- Triumph Physics 10 pg. 155
- Rubber bands
- Slinky spring
- Fixed block
- Smooth surface
- Practical assessment - Observation - Written assignments
9 1
Waves and Optics
Properties of Waves - Applications of stationary waves in vibrating strings
By the end of the lesson, the learner should be able to:
- Derive expressions for fundamental frequency and overtones in vibrating strings
- Calculate frequencies of harmonics in vibrating strings
- Connect vibrating strings to stringed musical instruments like guitars and pianos
In groups, learners are guided to:
- Set up a string attached to a fixed support and pulley with masses
- Pluck the string and observe stationary wave patterns
- Measure distance between nodes and antinodes
- Calculate fundamental frequency and overtones
How does changing string tension affect the pitch of sound produced?
- Triumph Physics 10 pg. 159
- String (1-2 metres)
- Fixed support
- Pulley and masses
- Ruler
- Written assignments - Practical assessment - Oral questions
9 2
Waves and Optics
Properties of Waves - Vibrating air columns in closed and open pipes
By the end of the lesson, the learner should be able to:
- Derive expressions for frequencies in closed and open pipes
- Differentiate between harmonics produced in closed and open pipes
- Connect vibrating air columns to wind instruments like flutes and clarinets
In groups, learners are guided to:
- Blow air across closed and open pipes and listen to sounds produced
- Compare pitch differences between closed and open pipes
- Discuss why closed pipes produce only odd harmonics
- Calculate frequencies of harmonics in pipes
Why do closed pipes produce only odd harmonics while open pipes produce all harmonics?
- Triumph Physics 10 pg. 161
- Closed pipe (boiling tube)
- Open pipe
- Ruler
- Written assignments - Oral questions - Practical assessment
9 3-4
Waves and Optics
Properties of Waves - Vibrating air columns in closed and open pipes
Properties of Waves - Resonance and frequency modulated waves
By the end of the lesson, the learner should be able to:
- Derive expressions for frequencies in closed and open pipes
- Differentiate between harmonics produced in closed and open pipes
- Connect vibrating air columns to wind instruments like flutes and clarinets
- Explain resonance and its conditions
- Describe how FM radio waves carry sound information
- Connect resonance to tuning musical instruments and FM to radio broadcasting
In groups, learners are guided to:
- Blow air across closed and open pipes and listen to sounds produced
- Compare pitch differences between closed and open pipes
- Discuss why closed pipes produce only odd harmonics
- Calculate frequencies of harmonics in pipes
- Set up a glass tube in water with a tuning fork to demonstrate resonance
- Adjust air column length to find resonance point
- Tune an FM radio receiver to different stations
- Research how FM radio waves carry sound information
Why do closed pipes produce only odd harmonics while open pipes produce all harmonics?
How does a radio receiver select and play a specific FM station?
- Triumph Physics 10 pg. 161
- Closed pipe (boiling tube)
- Open pipe
- Ruler
- Triumph Physics 10 pg. 164
- Glass tube
- Tuning fork
- Container with water
- FM radio receiver
- Written assignments - Oral questions - Practical assessment
- Oral questions - Written assignments - Observation
9 5
Waves and Optics
Properties of Waves - Resonance and frequency modulated waves
By the end of the lesson, the learner should be able to:
- Explain resonance and its conditions
- Describe how FM radio waves carry sound information
- Connect resonance to tuning musical instruments and FM to radio broadcasting
In groups, learners are guided to:
- Set up a glass tube in water with a tuning fork to demonstrate resonance
- Adjust air column length to find resonance point
- Tune an FM radio receiver to different stations
- Research how FM radio waves carry sound information
How does a radio receiver select and play a specific FM station?
- Triumph Physics 10 pg. 164
- Glass tube
- Tuning fork
- Container with water
- FM radio receiver
- Oral questions - Written assignments - Observation
10 1
Waves and Optics
Properties of Waves - Doppler effect and applications
By the end of the lesson, the learner should be able to:
- Explain the Doppler effect and its causes
- Describe how frequency changes when source approaches or recedes
- Connect Doppler effect to ambulance sirens, radar speed detection and medical ultrasound
In groups, learners are guided to:
- Watch videos demonstrating Doppler effect with sound waves
- Observe how sound changes as source moves toward or away
- Discuss real-life applications of Doppler effect
- Record observations on frequency and pitch changes
Why does an ambulance siren sound different as it approaches compared to when it moves away?
- Triumph Physics 10 pg. 166
- Digital devices
- Internet access
- Writing materials
- Oral questions - Written assignments - Observation
10 2
Waves and Optics
Radioactivity and Stability of Isotopes - Terminologies used in radioactivity
By the end of the lesson, the learner should be able to:
- Define terms used in radioactivity including atom, nuclide, half-life and radioisotope
- Explain factors that determine nuclear stability
- Connect radioactivity concepts to medical imaging and carbon dating
In groups, learners are guided to:
- Use digital devices or reference books to find meanings of radioactivity terms
- Discuss atomic number, mass number and isotopes
- Explain nuclear stability and background radiation
- Share findings on terminology in class discussion
What makes some atomic nuclei stable while others are unstable?
- Triumph Physics 10 pg. 169
- Digital devices
- Reference books
- Periodic table
- Oral questions - Written assignments - Observation
10 3-4
Waves and Optics
Radioactivity and Stability of Isotopes - Types and properties of alpha, beta and gamma radiations
Radioactivity and Stability of Isotopes - Behaviour of radiations in electric and magnetic fields
Radioactivity and Stability of Isotopes - Nuclear equations showing how radionuclides attain stability
By the end of the lesson, the learner should be able to:
- Describe the nature, charge and mass of alpha, beta and gamma radiations
- Compare penetrating power and ionising effects of the three radiations
- Connect radiation properties to their use in smoke detectors and medical treatment
- Describe how alpha, beta and gamma radiations behave in electric and magnetic fields
- Draw diagrams showing deflection of radiations in fields
- Connect radiation deflection to particle accelerators and mass spectrometers
In groups, learners are guided to:
- Study cards showing properties of alpha, beta and gamma emissions
- Discuss nature, charge and mass of each radiation type
- Compare penetrating power and ionising effects
- Summarise properties on manila paper for presentation
- Draw bar charts comparing penetrating power and ionising effects
- Draw diagrams showing deflection in electric and magnetic fields
- Discuss why gamma rays are not deflected
- Present charts to class for peer learning
Why is alpha radiation most dangerous inside the body but least dangerous outside?
Why are alpha and beta particles deflected in opposite directions in electric and magnetic fields?
- Triumph Physics 10 pg. 171
- Property cards
- Manila paper
- Markers
- Triumph Physics 10 pg. 173
- Manila paper
- Coloured pencils
- Rulers
- Triumph Physics 10 pg. 175
- Periodic table
- Chart of nuclides
- Exercise books
- Oral questions - Written assignments - Observation
- Practical assessment - Written assignments - Observation
10 5
Waves and Optics
Radioactivity and Stability of Isotopes - Decay series and chain reactions
By the end of the lesson, the learner should be able to:
- Explain decay series as a sequence of radioactive decays
- Trace the uranium-238 decay series to lead-206
- Connect decay series to geological dating of rocks and minerals
In groups, learners are guided to:
- Observe and copy the Uranium-238 decay chart
- Identify radioactive emissions at each stage
- Write nuclear equations for decay steps in the series
- Present findings on decay series to class
Why does uranium-238 undergo multiple decays before becoming stable lead-206?
- Triumph Physics 10 pg. 178
- Uranium-238 decay chart
- Periodic table
- Exercise books
- Written assignments - Oral questions - Observation
11 1
Waves and Optics
Radioactivity and Stability of Isotopes - Safety precautions in handling and disposing of radioactive substances
By the end of the lesson, the learner should be able to:
- List effects of radiation exposure on human health
- Describe safety precautions when handling radioactive materials
- Connect radiation safety to protection measures in hospitals and nuclear facilities
In groups, learners are guided to:
- Research safety precautions for handling radioactive substances
- Discuss personal protective equipment needed
- Discuss proper methods for storing and disposing radioactive waste
- Create safety poster for class presentation
What safety measures must be followed to minimise radiation exposure?
- Triumph Physics 10 pg. 179
- Digital devices
- Manila paper
- Markers
- Oral questions - Written assignments - Observation
11 2
Waves and Optics
Radioactivity and Stability of Isotopes - Detection of radioactive emissions using photographic plates and electroscopes
By the end of the lesson, the learner should be able to:
- Explain how photographic emulsions detect radiation
- Describe how a leaf electroscope detects radiation
- Connect radiation detection to radiation badges worn by hospital workers
In groups, learners are guided to:
- Observe demonstration of photographic plate detection
- Construct a simple electroscope and observe discharge near radioactive material
- Discuss how ionisation affects charge on foil strips
- Compare detection methods and their applications
How do photographic plates and electroscopes indicate the presence of radiation?
- Triumph Physics 10 pg. 180
- Photographic plates
- Electroscope materials
- Radioactive source
- Practical assessment - Oral questions - Observation
11 3-4
Waves and Optics
Radioactivity and Stability of Isotopes - Detection using Geiger-Muller counter and cloud chamber
Radioactivity and Stability of Isotopes - Half-life and decay curves
Radioactivity and Stability of Isotopes - Nuclear fission, fusion and applications of radioactivity
By the end of the lesson, the learner should be able to:
- Describe the working principle of a Geiger-Muller counter
- Explain how cloud chambers make radiation tracks visible
- Connect radiation detectors to nuclear safety monitoring and scientific research
- Differentiate between nuclear fission and nuclear fusion
- Write nuclear equations for fission and fusion reactions
- Connect nuclear reactions to power generation, medical imaging and cancer treatment
In groups, learners are guided to:
- Research how Geiger-Muller counter and cloud chamber work
- Identify characteristics of tracks from alpha, beta and gamma radiations
- Discuss advantages and limitations of each detection method
- Present findings on detection methods
- Study pictures of nuclear fission reactions
- Discuss chain reactions and their control in nuclear reactors
- Research applications of radioactivity in medicine, industry and agriculture
- Present findings on applications to class
How does a Geiger-Muller counter convert radiation into measurable signals?
How do nuclear power plants harness fission energy while preventing uncontrolled chain reactions?
- Triumph Physics 10 pg. 183
- Digital devices
- Reference books
- Manila paper
- Triumph Physics 10 pg. 185
- Burette
- Stopwatch
- Beaker
- Graph paper
- Triumph Physics 10 pg. 189
- Digital devices
- Pictures of nuclear reactions
- Reference books
- Written assignments - Oral questions - Observation
11 5
Waves and Optics
Radioactivity and Stability of Isotopes - Nuclear fission, fusion and applications of radioactivity
By the end of the lesson, the learner should be able to:
- Differentiate between nuclear fission and nuclear fusion
- Write nuclear equations for fission and fusion reactions
- Connect nuclear reactions to power generation, medical imaging and cancer treatment
In groups, learners are guided to:
- Study pictures of nuclear fission reactions
- Discuss chain reactions and their control in nuclear reactors
- Research applications of radioactivity in medicine, industry and agriculture
- Present findings on applications to class
How do nuclear power plants harness fission energy while preventing uncontrolled chain reactions?
- Triumph Physics 10 pg. 189
- Digital devices
- Pictures of nuclear reactions
- Reference books
- Written assignments - Oral questions - Observation

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