Physics X · 2025 · 28-Week Instructional Pacing Guide
| Weeks | Unit & Topic | Periods | SLOs Covered | Suggested Activities & Resources |
|---|---|---|---|---|
| Weeks 1–3 | Unit 11: Wave Motion (Oscillatory Motion, Simple Pendulum T = 2π√(l/g), Transverse & Longitudinal Waves, Wave Equation v = fλ, Ripple Tank Phenomena) | 12 | 11.1.1, 11.1.2, 11.1.3, 11.2.1, 11.2.2, 11.2.3, 11.3.1, 11.3.2, 11.4.1, 11.4.2, 11.4.3, 11.4.4, 11.5.1, 11.5.2 | Determine time period of a simple pendulum and verify T ∝ √l; demonstrate wave reflection, refraction, and diffraction in a ripple tank. Resources: Physics 10 PCTB (Unit 10), STBB Physics X (Unit 10), PhET Wave on a String |
| Weeks 4–6 | Unit 12: Sound (Production & Propagation, Loudness, Pitch, Quality, Intensity, Speed of Sound, Echo Calculations, Ultrasound & Noise Pollution) | 12 | 12.1.1, 12.1.2, 12.1.3, 12.1.4, 12.1.5, 12.2.1, 12.2.2, 12.2.3, 12.2.4, 12.2.5, 12.3.1, 12.3.2, 12.3.3, 12.4.1, 12.4.2, 12.5.1, 12.5.2 | Bell-jar experiment showing sound requires a material medium; solve echo distance problems using v = 2d/t; compare oscilloscope waveforms for pitch and loudness. Resources: Physics 10 PCTB (Unit 11), PhET Sound Waves, Charles Chew (Unit 16) |
| Weeks 7–10 | Unit 13: Geometrical Optics (Reflection, Refraction & Snell's Law, Dispersion, Total Internal Reflection & Optical Fibres, Thin Lenses, Eye Defects & Lensing) | 16 | 13.1.1, 13.1.2, 13.1.3, 13.2.1, 13.2.2, 13.2.3, 13.2.4, 13.2.5, 13.3.1, 13.3.2, 13.3.3, 13.4.1, 13.4.2, 13.4.3, 13.4.4, 13.4.5, 13.5.1, 13.5.2, 13.5.3, 13.5.4, 13.6.1, 13.6.2, 13.7.1, 13.7.2, 13.8.1, 13.8.2, 13.8.3, 13.9.1 | Trace light rays through a glass slab and prism to measure refractive index and critical angle; determine focal length of a convex lens and solve 1/f = 1/p + 1/q. Resources: Physics 10 PCTB (Unit 12), STBB Physics X (Unit 13), PhET Bending Light & Geometric Optics |
| Weeks 11–13 | Unit 14: Electrostatics (Electric Charge, Gold-Leaf Electroscope, Coulomb's Law, Electrostatic Induction, Electric Field & Potential, Lightning & Applications) | 12 | 14.1.1, 14.1.2, 14.1.3, 14.1.4, 14.1.5, 14.2.1, 14.2.2, 14.2.3, 14.3.1, 14.3.2, 14.4.1, 14.4.2, 14.4.3, 14.5.1, 14.5.2, 14.5.3, 14.5.4 | Charge a gold-leaf electroscope by induction and conduction; solve Coulomb's Law F = kq₁q₂/r² and electric field E = F/q numericals. Resources: Physics 10 PCTB (Unit 13), STBB Physics X (Unit 14), PhET Charges and Fields |
| Weeks 14–17 | Unit 15: Electric Current (Conventional Current, e.m.f. & Potential Difference, Ohm's Law, Ohmic & Non-Ohmic Conductors, Resistivity, Joule's Law, AC & Electrical Safety) | 16 | 15.1.1, 15.1.2, 15.1.3, 15.1.4, 15.2.1, 15.2.2, 15.3.1, 15.3.2, 15.3.3, 15.3.4, 15.4.1, 15.4.2, 15.4.3, 15.4.4, 15.4.5, 15.5.1, 15.5.2, 15.6.1, 15.6.2, 15.6.3, 15.6.4, 15.7.1, 15.8.1, 15.8.2, 15.8.3, 15.8.4, 15.8.5, 15.8.6 | Verify Ohm's Law by plotting I–V characteristics for a metallic resistor and filament lamp; calculate electrical energy in kWh and electricity billing cost. Resources: Physics 10 PCTB (Unit 14), Charles Chew (Unit 18), PhET Ohm's Law |
| Weeks 18–19 | Unit 16: D.C. Circuits (Series & Parallel Resistor Combinations, Equivalent Resistance, Circuit Diagrams, Rheostat Potential Divider, LDR & Thermistor) | 8 | 16.1.1, 16.1.2, 16.1.3, 16.2.1, 16.2.2, 16.2.3 | Construct series and parallel resistor circuits using ammeters and voltmeters; measure equivalent resistance and potential divider output. Resources: Charles Chew (Unit 19: DC Circuit), STBB Physics X (Unit 15), PhET Circuit Construction Kit: DC |
| Weeks 20–22 | Unit 17: Magnetism and Electromagnetism (Domain Theory, Magnetic Field Lines, Magnetic Field of Straight Wire & Solenoid, Force on Conductor, Fleming's Left-Hand Rule, DC Motor) | 12 | 17.1.1, 17.1.2, 17.1.3, 17.1.4, 17.1.5, 17.1.6, 17.2.1, 17.2.2, 17.2.3, 17.2.4, 17.2.5, 17.2.6, 17.3.1, 17.3.2, 17.3.3, 17.4.1, 17.4.2, 17.4.3, 17.4.4, 17.5.1, 17.5.2, 17.5.3 | Plot magnetic field lines around bar magnets and current-carrying conductors using a plotting compass; demonstrate Fleming's left-hand rule and DC motor rotation. Resources: Physics 10 PCTB (Unit 15), STBB Physics X (Unit 16), PhET Magnets and Electromagnets |
| Weeks 23–24 | Unit 18: Electromagnetic Induction (Faraday's Law, Lenz's Law, Fleming's Right-Hand Rule, AC Generator, Mutual Induction, Step-Up/Step-Down Transformers & High-Voltage Transmission) | 8 | 18.1.1, 18.1.2, 18.2.1, 18.2.2, 18.3.1, 18.3.2, 18.4.1, 18.4.2, 18.4.3, 18.5.1, 18.5.2, 18.5.3, 18.5.4 | Demonstrate induced e.m.f. with a magnet, coil, and galvanometer; solve transformer turns-ratio problems N_s/N_p = V_s/V_p and V_pI_p = V_sI_s. Resources: Physics 10 PCTB (Unit 15), Charles Chew (Unit 23), PhET Faraday's Electromagnetic Lab |
| Weeks 25–26 | Unit 19: Electromagnetic Waves and Electronics (EM Spectrum & Applications, Thermionic Emission, Cathode Ray Oscilloscope, Analogue vs Digital, Logic Gates & Truth Tables) | 8 | 19.1.1, 19.1.2, 19.1.3, 19.2.1, 19.2.2, 19.3.1, 19.3.2, 19.3.3, 19.4.1, 19.4.2, 19.5.1, 19.5.2, 19.5.3, 19.5.4, 19.5.5, 19.5.6, 19.5.7 | Construct truth tables and logic circuit diagrams for AND, OR, NOT, NAND, and NOR gates; identify EM wave bands from radio waves to gamma rays. Resources: Physics 10 PCTB (Unit 16), STBB Physics X (Unit 17), UCAR EM Spectrum Guide |
| Weeks 27–28 | Unit 20: Atomic and Nuclear Physics (Rutherford Scattering, Nuclide Notation, Isotopes, Alpha/Beta/Gamma Decay Equations, Half-Life Calculations, Nuclear Fission & Fusion, Radiation Safety) | 8 | 20.1.1, 20.2.1, 20.2.2, 20.2.3, 20.3.1, 20.3.2, 20.3.3, 20.4.1, 20.4.2, 20.4.3, 20.4.4, 20.4.5, 20.4.6, 20.5.1, 20.5.2, 20.6.1, 20.6.2, 20.6.3, 20.6.4, 20.7.1, 20.7.2, 20.7.3, 20.8.1, 20.8.2 | Balance nuclear transmutation equations for α, β, and γ decay; plot radioactive decay curves and solve half-life word problems. Resources: Physics 10 PCTB (Unit 18), STBB Physics X (Unit 19), PhET Alpha Decay & Radioactive Dating Game |