Physics IX · 2025 · 28-Week Instructional Pacing Guide
| Weeks | Unit & Topic | Periods | SLOs Covered | Suggested Activities & Resources |
|---|---|---|---|---|
| Weeks 1–3 | Unit 1: Measurement (Physical Quantities, SI Units, Prefixes, Vernier Callipers, Screw Gauge, Significant Figures) | 12 | 1.1.1, 1.1.2, 1.1.3, 1.2.1, 1.2.2, 1.3.1, 1.3.2, 1.4.1, 1.4.2, 1.4.3, 1.4.4, 1.5.1, 1.5.2, 1.5.3, 1.5.4, 1.6.1, 1.6.2, 1.7.1, 1.7.2 | Measure thickness/diameter of solid cylinder with Vernier callipers and wire diameter with micrometer screw gauge; practice scientific notation and significant figures. Resources: Physics 9 PCTB (Unit 1), CANTAB Model Textbook (Unit 2), STBB Physics IX (Unit 1) |
| Weeks 4–6 | Unit 2: Kinematics (Rest & Motion, Distance, Displacement, Speed, Velocity, Acceleration, Graphs & Free Fall) | 12 | 2.1.1, 2.2.1, 2.3.1, 2.3.2, 2.3.3, 2.3.4, 2.4.1, 2.4.2, 2.4.3, 2.4.4, 2.5.1, 2.5.2 | Plot and interpret distance-time and speed-time graphs; calculate gradient and area under speed-time graphs; solve free-fall problems using g = Δv/Δt. Resources: Physics 9 PCTB (Unit 2), PhET Moving Man Simulation, The Physics Classroom |
| Weeks 7–10 | Unit 3: Dynamics (Mass & Weight, Contact & Non-Contact Forces, Fundamental Forces, Newton's Laws, Momentum, Friction, Circular Motion) | 16 | 3.1.1, 3.1.2, 3.1.3, 3.1.4, 3.2.1, 3.2.2, 3.2.3, 3.2.4, 3.2.5, 3.2.6, 3.3.1, 3.3.2, 3.3.3, 3.3.4, 3.3.5, 3.4.1, 3.4.2, 3.4.3, 3.4.4, 3.4.5, 3.4.6, 3.4.7, 3.5.1, 3.5.2, 3.5.3, 3.6.1, 3.6.2 | Demonstrate inertia, verify F = ma and F = Δp/Δt, compare sliding and rolling friction, and analyse safety features (seatbelts, airbags, crumple zones). Resources: Physics 9 PCTB (Unit 3), PhET Forces and Motion, Heinemann Physics (Units 2 & 4) |
| Weeks 11–13 | Unit 4: Turning Effect of Forces (Like & Unlike Parallel Forces, Torque, Principle of Moments, Centre of Gravity, Equilibrium & Stability) | 12 | 4.1.1, 4.1.2, 4.1.3, 4.2.1, 4.2.2, 4.3.1, 4.3.2, 4.4.1, 4.4.2, 4.4.3, 4.4.4, 4.4.5 | Verify the principle of moments using a balanced metre rule and suspended weights; determine centre of gravity of a plane lamina with a plumb line. Resources: Physics 9 PCTB (Unit 4), Charles Chew O-Level Physics (Unit 5), PhET Balancing Act |
| Weeks 14–15 | Unit 5: Deformation of Solids (Elasticity, Hooke's Law F = kx, Spring Constant, Load–Extension Graphs & Limit of Proportionality) | 8 | 5.1.1, 5.1.2, 5.1.3, 5.1.4, 5.1.5, 5.1.6 | Practical activity: Measure extension of a helical spring under increasing loads, plot load–extension graph, and identify elastic limit and limit of proportionality. Resources: Cambridge IGCSE Physics (Unit 3), CANTAB Grade 9 (Unit 8), PhET Hooke's Law |
| Weeks 16–19 | Unit 6: Work, Energy and Power (Work W = Fd, Kinetic & Gravitational Potential Energy, Conservation of Energy, Renewable Sources, Efficiency & Power) | 16 | 6.1.1, 6.1.2, 6.2.1, 6.2.2, 6.3.1, 6.3.2, 6.3.3, 6.4.1, 6.4.2, 6.4.3, 6.4.4, 6.4.5, 6.4.6, 6.5.1, 6.5.2, 6.5.3, 6.6.1, 6.6.2, 6.6.3 | Solve numerical problems on E_k = ½mv², E_p = mgh, efficiency, and P = W/t; compare fossil fuels, hydroelectric, solar, wind, geothermal, nuclear, biomass, and tidal energy. Resources: Physics 9 PCTB (Unit 6), STBB Physics IX (Unit 8), PhET Energy Skate Park |
| Weeks 20–22 | Unit 7: Pressure (Density ρ = m/V, Solid Pressure P = F/A, Atmospheric Pressure & Barometer, Hydrostatic Pressure P = ρgh, Pascal's Law & Hydraulic Lift) | 12 | 7.1.1, 7.1.2, 7.1.3, 7.1.4, 7.2.1, 7.2.2, 7.3.1, 7.3.2, 7.3.3, 7.3.4, 7.4.1, 7.4.2, 7.4.3, 7.4.4, 7.4.5 | Measure density of regular and irregular solids using displacement method; solve numerical problems on P = F/A, P = ρgh, and hydraulic press F₁/A₁ = F₂/A₂. Resources: Physics 9 PCTB (Unit 7), Charles Chew (Unit 7), PhET Under Pressure |
| Weeks 23–25 | Unit 8: Thermal Physics (Kinetic Molecular Theory, Internal Energy, Specific Heat Capacity, Latent Heat, Heating/Cooling Curves, Evaporation, Temperature Scales) | 12 | 8.1.1, 8.1.2, 8.1.3, 8.1.4, 8.1.5, 8.2.1, 8.2.2, 8.2.3, 8.2.4, 8.2.5, 8.2.6, 8.2.7, 8.2.8, 8.2.9, 8.2.10, 8.3.1, 8.3.2, 8.3.3, 8.3.4, 8.3.5 | Practical Paper III experiment: Plot temperature-time graph for ice converting to water and steam; convert between Celsius, Kelvin, and Fahrenheit scales. Resources: Physics 9 PCTB (Unit 8), John Avison (Unit 10), Practical Paper III Sample Guide |
| Weeks 26–27 | Unit 9: Transfer of Thermal Energy (Conduction, Convection Currents, Thermal Radiation, Emitters & Absorbers, Vacuum Flask, Greenhouse Effect) | 8 | 9.1.1, 9.1.2, 9.1.3, 9.1.4, 9.1.5, 9.1.6, 9.2.1, 9.2.2, 9.2.3, 9.3.1, 9.3.2, 9.3.3, 9.3.4, 9.4.1, 9.4.2, 9.4.3 | Compare thermal conductivity of metals vs non-metals; investigate dull black vs shiny silver surfaces as emitters and absorbers of infrared radiation. Resources: Physics 9 PCTB (Unit 9), Cambridge IGCSE Physics (Unit 6), The Physics Classroom |
| Week 28 | Unit 10: Nature of Science (Objectives of Physics, Sub-Fields of Physics, Hypothesis, Theory & Law, Scientific Method, Science, Technology & Engineering) | 4 | 10.1.1, 10.2.1, 10.2.2, 10.3.1, 10.4.1 | Distinguish between scientific hypothesis, theory, and law with historical physics examples; classify real-world applications into science, technology, and engineering. Resources: CANTAB Grade 9 (Unit 1: Nature of Science), Britannica Scientific Method Guide |