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| WK | LSN | TOPIC | SUB-TOPIC | OBJECTIVES | T/L ACTIVITIES | T/L AIDS | REFERENCE | REMARKS |
|---|---|---|---|---|---|---|---|---|
| 1 |
REOPENING |
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| 2 | 3 |
Heating Effect of Electric Current
|
Joule's law and electrical energy
|
By the end of the
lesson, the learner
should be able to:
State Joule's law of heating - Derive H = I²Rt = VIt = V²t/R - Calculate electrical energy and power - Solve numerical problems on heating calculations |
In groups, learners are guided to:
Discussion on Joule's heating law - Mathematical derivations of heating formulas - Problem solving on energy calculations - Practical applications of heating law |
Formula charts, Calculators, Problem worksheets, Electrical devices for analysis
|
KLB Secondary Physics Form 3, Pages 200-201
|
|
| 2 | 4 |
Heating Effect of Electric Current
|
Joule's law and electrical energy
|
By the end of the
lesson, the learner
should be able to:
State Joule's law of heating - Derive H = I²Rt = VIt = V²t/R - Calculate electrical energy and power - Solve numerical problems on heating calculations |
In groups, learners are guided to:
Discussion on Joule's heating law - Mathematical derivations of heating formulas - Problem solving on energy calculations - Practical applications of heating law |
Formula charts, Calculators, Problem worksheets, Electrical devices for analysis
|
KLB Secondary Physics Form 3, Pages 200-201
|
|
| 2 | 5 |
Heating Effect of Electric Current
|
Electrical power and energy calculations
|
By the end of the
lesson, the learner
should be able to:
Define electrical power P = VI = I²R = V²/R - Calculate electrical energy W = Pt - Convert between different units (J, kWh) - Solve complex power problems |
In groups, learners are guided to:
Derivation of electrical power formulas - Energy unit conversions - Problem solving on household appliances - Cost calculations for electrical consumption |
Calculators, Unit conversion charts, Household appliance ratings, Electricity bills, Problem sets
|
KLB Secondary Physics Form 3, Pages 201-202
|
|
| 3 | 1 |
Heating Effect of Electric Current
|
Applications - electrical lighting and heating devices
|
By the end of the
lesson, the learner
should be able to:
Describe working of filament lamp - Explain choice of tungsten for filaments - Describe working of electric iron, kettle and heaters - Compare energy saving bulbs |
In groups, learners are guided to:
Discussion on filament lamp construction - Analysis of heating device designs - Examination of actual heating appliances - Efficiency comparisons |
Filament lamps, Electric iron, Electric kettle, Heating elements, Energy saving bulbs, Appliance diagrams
|
KLB Secondary Physics Form 3, Pages 202-203
|
|
| 3 | 2 |
Heating Effect of Electric Current
|
Applications - electrical lighting and heating devices
|
By the end of the
lesson, the learner
should be able to:
Describe working of filament lamp - Explain choice of tungsten for filaments - Describe working of electric iron, kettle and heaters - Compare energy saving bulbs |
In groups, learners are guided to:
Discussion on filament lamp construction - Analysis of heating device designs - Examination of actual heating appliances - Efficiency comparisons |
Filament lamps, Electric iron, Electric kettle, Heating elements, Energy saving bulbs, Appliance diagrams
|
KLB Secondary Physics Form 3, Pages 202-203
|
|
| 3 | 3 |
Heating Effect of Electric Current
|
Applications - electrical lighting and heating devices
|
By the end of the
lesson, the learner
should be able to:
Describe working of filament lamp - Explain choice of tungsten for filaments - Describe working of electric iron, kettle and heaters - Compare energy saving bulbs |
In groups, learners are guided to:
Discussion on filament lamp construction - Analysis of heating device designs - Examination of actual heating appliances - Efficiency comparisons |
Filament lamps, Electric iron, Electric kettle, Heating elements, Energy saving bulbs, Appliance diagrams
|
KLB Secondary Physics Form 3, Pages 202-203
|
|
| 3 | 4 |
Heating Effect of Electric Current
|
Electrical safety - fuses and circuit protection
|
By the end of the
lesson, the learner
should be able to:
Explain working principle of fuses - Calculate appropriate fuse ratings - Describe safety measures in electrical installations - Analyze circuit protection methods |
In groups, learners are guided to:
Demonstration of fuse operation - Calculation of fuse ratings for appliances - Discussion on electrical safety - Analysis of circuit protection devices |
Various fuses, Fuse holders, Circuit diagrams, Safety equipment demonstrations, Rating calculations
|
KLB Secondary Physics Form 3, Pages 203-204
|
|
| 3 | 5 |
Heating Effect of Electric Current
|
Electrical safety - fuses and circuit protection
|
By the end of the
lesson, the learner
should be able to:
Explain working principle of fuses - Calculate appropriate fuse ratings - Describe safety measures in electrical installations - Analyze circuit protection methods |
In groups, learners are guided to:
Demonstration of fuse operation - Calculation of fuse ratings for appliances - Discussion on electrical safety - Analysis of circuit protection devices |
Various fuses, Fuse holders, Circuit diagrams, Safety equipment demonstrations, Rating calculations
|
KLB Secondary Physics Form 3, Pages 203-204
|
|
| 4 | 1 |
Heating Effect of Electric Current
|
Efficiency calculations and motor problems
|
By the end of the
lesson, the learner
should be able to:
Calculate efficiency of electrical devices - Solve problems involving motors and mechanical work - Analyze power input vs power output - Calculate overall efficiency in systems |
In groups, learners are guided to:
Problem solving on device efficiency - Motor efficiency calculations - Analysis of energy conversions - Real-world efficiency problems |
Motor specifications, Efficiency calculation worksheets, Power meters, Mechanical loading systems
|
KLB Secondary Physics Form 3, Pages 201-204
|
|
| 4 | 2 |
Heating Effect of Electric Current
|
Efficiency calculations and motor problems
|
By the end of the
lesson, the learner
should be able to:
Calculate efficiency of electrical devices - Solve problems involving motors and mechanical work - Analyze power input vs power output - Calculate overall efficiency in systems |
In groups, learners are guided to:
Problem solving on device efficiency - Motor efficiency calculations - Analysis of energy conversions - Real-world efficiency problems |
Motor specifications, Efficiency calculation worksheets, Power meters, Mechanical loading systems
|
KLB Secondary Physics Form 3, Pages 201-204
|
|
| 4 | 3 |
Heating Effect of Electric Current
|
Series and parallel heating circuits
|
By the end of the
lesson, the learner
should be able to:
Analyze heating in series and parallel circuits - Calculate power dissipation in different configurations - Compare heating effects in different circuit arrangements - Solve complex circuit problems |
In groups, learners are guided to:
Circuit analysis of heating effects - Comparison of series vs parallel heating - Power distribution calculations - Complex circuit problem solving |
Resistors in circuits, Ammeters, Voltmeters, Power calculation sheets, Circuit boards
|
KLB Secondary Physics Form 3, Pages 200-204
|
|
| 4 | 4 |
Heating Effect of Electric Current
|
Series and parallel heating circuits
|
By the end of the
lesson, the learner
should be able to:
Analyze heating in series and parallel circuits - Calculate power dissipation in different configurations - Compare heating effects in different circuit arrangements - Solve complex circuit problems |
In groups, learners are guided to:
Circuit analysis of heating effects - Comparison of series vs parallel heating - Power distribution calculations - Complex circuit problem solving |
Resistors in circuits, Ammeters, Voltmeters, Power calculation sheets, Circuit boards
|
KLB Secondary Physics Form 3, Pages 200-204
|
|
| 4 | 5 |
Quantity of Heat
|
Heat capacity and specific heat capacity
|
By the end of the
lesson, the learner
should be able to:
Define heat capacity and specific heat capacity - State SI units for both quantities - Distinguish between heat capacity and specific heat capacity - Use formula Q = mcθ in simple calculations |
In groups, learners are guided to:
Q/A on heat concepts from previous studies - Discussion on definitions and units - Comparison of heat capacity vs specific heat capacity - Simple problem solving using Q = mcθ formula |
Charts on heat definitions, Calculators, Simple problem worksheets, Various materials for comparison
|
KLB Secondary Physics Form 3, Pages 206-209
|
|
| 5 | 1 |
Quantity of Heat
|
Determination of specific heat capacity - method of mixtures for solids
|
By the end of the
lesson, the learner
should be able to:
Describe method of mixtures for solids - Perform experiment to determine specific heat capacity of metal - Apply heat balance principle - Calculate specific heat capacity from experimental data |
In groups, learners are guided to:
Experiment using hot metal block in cold water - Measurement of temperatures and masses - Application of heat balance equation - Calculation of specific heat capacity from results |
Metal blocks, Beakers, Water, Thermometers, Weighing balance, Heat source, Well-lagged calorimeter, Stirrer
|
KLB Secondary Physics Form 3, Pages 209-212
|
|
| 5 | 2 |
Quantity of Heat
|
Determination of specific heat capacity - method of mixtures for solids
|
By the end of the
lesson, the learner
should be able to:
Describe method of mixtures for solids - Perform experiment to determine specific heat capacity of metal - Apply heat balance principle - Calculate specific heat capacity from experimental data |
In groups, learners are guided to:
Experiment using hot metal block in cold water - Measurement of temperatures and masses - Application of heat balance equation - Calculation of specific heat capacity from results |
Metal blocks, Beakers, Water, Thermometers, Weighing balance, Heat source, Well-lagged calorimeter, Stirrer
|
KLB Secondary Physics Form 3, Pages 209-212
|
|
| 5 | 3 |
Quantity of Heat
|
Determination of specific heat capacity - method of mixtures for solids
|
By the end of the
lesson, the learner
should be able to:
Describe method of mixtures for solids - Perform experiment to determine specific heat capacity of metal - Apply heat balance principle - Calculate specific heat capacity from experimental data |
In groups, learners are guided to:
Experiment using hot metal block in cold water - Measurement of temperatures and masses - Application of heat balance equation - Calculation of specific heat capacity from results |
Metal blocks, Beakers, Water, Thermometers, Weighing balance, Heat source, Well-lagged calorimeter, Stirrer
|
KLB Secondary Physics Form 3, Pages 209-212
|
|
| 5 | 4 |
Quantity of Heat
|
Determination of specific heat capacity - electrical method
|
By the end of the
lesson, the learner
should be able to:
Describe electrical method for solids - Perform electrical heating experiment - Calculate electrical energy supplied - Determine specific heat capacity using electrical method |
In groups, learners are guided to:
Experiment using electrical heating of metal block - Measurement of voltage, current and time - Calculation of electrical energy supplied - Determination of specific heat capacity |
Metal cylinder with heater, Voltmeter, Ammeter, Thermometer, Stopwatch, Insulating materials, Power supply
|
KLB Secondary Physics Form 3, Pages 212-214
|
|
| 5 | 5 |
Quantity of Heat
|
Determination of specific heat capacity - electrical method
|
By the end of the
lesson, the learner
should be able to:
Describe electrical method for solids - Perform electrical heating experiment - Calculate electrical energy supplied - Determine specific heat capacity using electrical method |
In groups, learners are guided to:
Experiment using electrical heating of metal block - Measurement of voltage, current and time - Calculation of electrical energy supplied - Determination of specific heat capacity |
Metal cylinder with heater, Voltmeter, Ammeter, Thermometer, Stopwatch, Insulating materials, Power supply
|
KLB Secondary Physics Form 3, Pages 212-214
|
|
| 6 | 1 |
Quantity of Heat
|
Specific heat capacity of liquids and continuous flow method
|
By the end of the
lesson, the learner
should be able to:
Determine specific heat capacity of water by electrical method - Describe continuous flow method - Explain advantages of continuous flow method - Solve problems on specific heat capacity |
In groups, learners are guided to:
Electrical method experiment for water - Discussion on continuous flow apparatus - Analysis of method advantages - Problem solving on specific heat calculations |
Calorimeter, Electrical heater, Water, Measuring instruments, Continuous flow apparatus diagram, Problem sets
|
KLB Secondary Physics Form 3, Pages 214-217
|
|
| 6 | 2 |
Quantity of Heat
|
Specific heat capacity of liquids and continuous flow method
|
By the end of the
lesson, the learner
should be able to:
Determine specific heat capacity of water by electrical method - Describe continuous flow method - Explain advantages of continuous flow method - Solve problems on specific heat capacity |
In groups, learners are guided to:
Electrical method experiment for water - Discussion on continuous flow apparatus - Analysis of method advantages - Problem solving on specific heat calculations |
Calorimeter, Electrical heater, Water, Measuring instruments, Continuous flow apparatus diagram, Problem sets
|
KLB Secondary Physics Form 3, Pages 214-217
|
|
| 6 | 3 |
Quantity of Heat
|
Change of state and latent heat concepts
|
By the end of the
lesson, the learner
should be able to:
Define latent heat of fusion and vaporization - Explain change of state process - Plot cooling curve for naphthalene - Identify melting and boiling points from graphs |
In groups, learners are guided to:
Experiment plotting cooling curve for naphthalene - Observation of temperature plateaus during phase changes - Discussion on latent heat concept - Graph analysis and interpretation |
Naphthalene, Test tubes, Thermometer, Stopwatch, Graph paper, Heat source, Cooling apparatus
|
KLB Secondary Physics Form 3, Pages 218-220
|
|
| 6 | 4 |
Quantity of Heat
|
Change of state and latent heat concepts
|
By the end of the
lesson, the learner
should be able to:
Define latent heat of fusion and vaporization - Explain change of state process - Plot cooling curve for naphthalene - Identify melting and boiling points from graphs |
In groups, learners are guided to:
Experiment plotting cooling curve for naphthalene - Observation of temperature plateaus during phase changes - Discussion on latent heat concept - Graph analysis and interpretation |
Naphthalene, Test tubes, Thermometer, Stopwatch, Graph paper, Heat source, Cooling apparatus
|
KLB Secondary Physics Form 3, Pages 218-220
|
|
| 6 | 5 |
Quantity of Heat
|
Specific latent heat of fusion
|
By the end of the
lesson, the learner
should be able to:
Define specific latent heat of fusion - Determine latent heat of ice by method of mixtures - Perform electrical method for latent heat - Calculate latent heat from experimental data |
In groups, learners are guided to:
Method of mixtures experiment using ice and warm water - Electrical method using ice and immersion heater - Heat balance calculations - Determination of specific latent heat values |
Ice, Calorimeter, Thermometer, Electrical heater, Filter funnels, Beakers, Measuring cylinders
|
KLB Secondary Physics Form 3, Pages 220-223
|
|
| 7 | 1 |
Quantity of Heat
|
Specific latent heat of vaporization
|
By the end of the
lesson, the learner
should be able to:
Define specific latent heat of vaporization - Determine latent heat of steam by condensation method - Perform electrical method for vaporization - Solve complex latent heat problems |
In groups, learners are guided to:
Steam condensation experiment in calorimeter - Electrical method using boiling water - Calculation of latent heat of vaporization - Complex problem solving involving phase changes |
Steam generator, Condenser, Calorimeter, Electrical heater, Measuring instruments, Safety equipment
|
KLB Secondary Physics Form 3, Pages 223-227
|
|
| 7 | 2 |
Quantity of Heat
|
Specific latent heat of vaporization
|
By the end of the
lesson, the learner
should be able to:
Define specific latent heat of vaporization - Determine latent heat of steam by condensation method - Perform electrical method for vaporization - Solve complex latent heat problems |
In groups, learners are guided to:
Steam condensation experiment in calorimeter - Electrical method using boiling water - Calculation of latent heat of vaporization - Complex problem solving involving phase changes |
Steam generator, Condenser, Calorimeter, Electrical heater, Measuring instruments, Safety equipment
|
KLB Secondary Physics Form 3, Pages 223-227
|
|
| 7 | 3 |
Quantity of Heat
|
Specific latent heat of vaporization
|
By the end of the
lesson, the learner
should be able to:
Define specific latent heat of vaporization - Determine latent heat of steam by condensation method - Perform electrical method for vaporization - Solve complex latent heat problems |
In groups, learners are guided to:
Steam condensation experiment in calorimeter - Electrical method using boiling water - Calculation of latent heat of vaporization - Complex problem solving involving phase changes |
Steam generator, Condenser, Calorimeter, Electrical heater, Measuring instruments, Safety equipment
|
KLB Secondary Physics Form 3, Pages 223-227
|
|
| 7 | 4 |
Quantity of Heat
|
Effects of pressure and impurities on melting and boiling points
|
By the end of the
lesson, the learner
should be able to:
Investigate effect of pressure on melting point of ice - Demonstrate regelation phenomenon - Investigate effect of pressure on boiling point - Explain effect of impurities on phase transition temperatures |
In groups, learners are guided to:
Regelation experiment with ice and wire - Pressure effect on boiling point using flask - Salt solution boiling point investigation - Discussion on pressure cooker working |
Ice blocks, Weighted wire, Round-bottomed flask, Thermometer, Salt solutions, Pressure cooker model
|
KLB Secondary Physics Form 3, Pages 227-230
|
|
| 7 | 5 |
Quantity of Heat
|
Effects of pressure and impurities on melting and boiling points
|
By the end of the
lesson, the learner
should be able to:
Investigate effect of pressure on melting point of ice - Demonstrate regelation phenomenon - Investigate effect of pressure on boiling point - Explain effect of impurities on phase transition temperatures |
In groups, learners are guided to:
Regelation experiment with ice and wire - Pressure effect on boiling point using flask - Salt solution boiling point investigation - Discussion on pressure cooker working |
Ice blocks, Weighted wire, Round-bottomed flask, Thermometer, Salt solutions, Pressure cooker model
|
KLB Secondary Physics Form 3, Pages 227-230
|
|
| 8 | 1 |
Quantity of Heat
|
Evaporation and cooling effects
|
By the end of the
lesson, the learner
should be able to:
Define evaporation and distinguish from boiling - Investigate factors affecting evaporation rate - Demonstrate cooling effect of evaporation - Explain applications of evaporation cooling |
In groups, learners are guided to:
Experiments on evaporation rate factors - Demonstration of cooling by evaporation using ether - Investigation of surface area, temperature and humidity effects - Discussion on natural cooling systems |
Various liquids, Beakers, Fans, Thermometers, Ether, Test tubes, Humidity measuring devices
|
KLB Secondary Physics Form 3, Pages 230-233
|
|
| 8 | 2 |
Quantity of Heat
|
Evaporation and cooling effects
|
By the end of the
lesson, the learner
should be able to:
Define evaporation and distinguish from boiling - Investigate factors affecting evaporation rate - Demonstrate cooling effect of evaporation - Explain applications of evaporation cooling |
In groups, learners are guided to:
Experiments on evaporation rate factors - Demonstration of cooling by evaporation using ether - Investigation of surface area, temperature and humidity effects - Discussion on natural cooling systems |
Various liquids, Beakers, Fans, Thermometers, Ether, Test tubes, Humidity measuring devices
|
KLB Secondary Physics Form 3, Pages 230-233
|
|
| 9 |
EXAMS AND CLOSING |
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