# Grade 12 Technical Sciences Notes > CAPS-aligned Grade 12 Technical Sciences revision notes, broken down topic by topic with worked examples, diagrams, and key definitions. - Page: https://www.hlayiso.com/grade-12/technical-sciences/notes Breadcrumbs: [Home](https://www.hlayiso.com/) › [Grade 12](https://www.hlayiso.com/grade-12) › [Technical Sciences](https://www.hlayiso.com/grade-12/technical-sciences) › [Notes](https://www.hlayiso.com/grade-12/technical-sciences/notes) ## Topics Each section has a free preview; the full notes are in the free Hlayiso account. ### Newton's Laws of Motion - [Newton's Laws of Motion notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/newtons-laws-of-motion) - [Newton's Third Law and Action-Reaction Pairs](https://www.hlayiso.com/grade-12/technical-sciences/notes/newtons-laws-of-motion/newtons-third-law-and-action-reaction-pairs) - [Newton's First Law and Inertia](https://www.hlayiso.com/grade-12/technical-sciences/notes/newtons-laws-of-motion/newtons-first-law-and-inertia) - [Newton's Second Law of Motion](https://www.hlayiso.com/grade-12/technical-sciences/notes/newtons-laws-of-motion/newtons-second-law-of-motion) ### Momentum and Impulse - [Momentum and Impulse notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/momentum-and-impulse) - [Momentum and the Impulse-Momentum Theorem](https://www.hlayiso.com/grade-12/technical-sciences/notes/momentum-and-impulse/momentum-and-the-impulse-momentum-theorem) - [Conservation of Momentum and Collisions](https://www.hlayiso.com/grade-12/technical-sciences/notes/momentum-and-impulse/conservation-of-momentum-and-collisions) ### Work Energy and Power - [Work Energy and Power notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/work-energy-and-power) - [Work and Conservation of Mechanical Energy](https://www.hlayiso.com/grade-12/technical-sciences/notes/work-energy-and-power/work-and-conservation-of-mechanical-energy) - [Power and Practical Units](https://www.hlayiso.com/grade-12/technical-sciences/notes/work-energy-and-power/power-and-practical-units) ### Elasticity Viscosity and Hydraulics - [Elasticity Viscosity and Hydraulics notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/elasticity-viscosity-and-hydraulics) - [Viscosity](https://www.hlayiso.com/grade-12/technical-sciences/notes/elasticity-viscosity-and-hydraulics/viscosity) - [Stress Strain and Hooke's Law](https://www.hlayiso.com/grade-12/technical-sciences/notes/elasticity-viscosity-and-hydraulics/stress-strain-and-hookes-law) - [Pressure and Pascal's Law](https://www.hlayiso.com/grade-12/technical-sciences/notes/elasticity-viscosity-and-hydraulics/pressure-and-pascals-law) ### Electronic Properties of Matter - [Electronic Properties of Matter notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/electronic-properties-of-matter) - [Semiconductors and Doping](https://www.hlayiso.com/grade-12/technical-sciences/notes/electronic-properties-of-matter/semiconductors-and-doping) - [The P-N Junction Diode](https://www.hlayiso.com/grade-12/technical-sciences/notes/electronic-properties-of-matter/the-p-n-junction-diode) ### Organic Chemistry - [Organic Chemistry notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/organic-chemistry) - [IUPAC Naming and Physical Properties](https://www.hlayiso.com/grade-12/technical-sciences/notes/organic-chemistry/iupac-naming-and-physical-properties) - [Organic Molecules and Homologous Series](https://www.hlayiso.com/grade-12/technical-sciences/notes/organic-chemistry/organic-molecules-and-homologous-series) - [Organic Reactions and Polymers](https://www.hlayiso.com/grade-12/technical-sciences/notes/organic-chemistry/organic-reactions-and-polymers) ### Light and Electromagnetic Radiation - [Light and Electromagnetic Radiation notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/light-and-electromagnetic-radiation) - [Reflection Refraction and Total Internal Reflection](https://www.hlayiso.com/grade-12/technical-sciences/notes/light-and-electromagnetic-radiation/reflection-refraction-and-total-internal-reflection) - [Lenses and Their Applications](https://www.hlayiso.com/grade-12/technical-sciences/notes/light-and-electromagnetic-radiation/lenses-and-their-applications) - [Electromagnetic Waves and Photon Energy](https://www.hlayiso.com/grade-12/technical-sciences/notes/light-and-electromagnetic-radiation/electromagnetic-waves-and-photon-energy) ### Electrostatics and Electric Circuits - [Electrostatics and Electric Circuits notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrostatics-and-electric-circuits) - [Capacitance and Capacitors](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrostatics-and-electric-circuits/capacitance-and-capacitors) - [Series and Parallel Circuits and Heat Dissipation](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrostatics-and-electric-circuits/series-and-parallel-circuits-and-heat-dissipation) - [Power in Electric Circuits](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrostatics-and-electric-circuits/power-in-electric-circuits) ### Electromagnetism - [Electromagnetism notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/electromagnetism) - [Transformers Generators and Motors](https://www.hlayiso.com/grade-12/technical-sciences/notes/electromagnetism/transformers-generators-and-motors) - [Magnetic Fields and Electromagnetic Induction](https://www.hlayiso.com/grade-12/technical-sciences/notes/electromagnetism/magnetic-fields-and-electromagnetic-induction) - [Faraday's Law and Lenz's Law](https://www.hlayiso.com/grade-12/technical-sciences/notes/electromagnetism/faradays-law-and-lenzs-law) ### Electrochemical Cells - [Electrochemical Cells notes](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrochemical-cells) - [Electrolytic Cells and EMF Calculations](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrochemical-cells/electrolytic-cells-and-emf-calculations) - [Galvanic Cells and Cell Notation](https://www.hlayiso.com/grade-12/technical-sciences/notes/electrochemical-cells/galvanic-cells-and-cell-notation) ## Frequently asked questions ### Are the Grade 12 Technical Sciences notes free? Each Grade 12 Technical Sciences note section has a free preview on Hlayiso. Create a free Hlayiso account to read the full notes on the web or in the app; the free plan has daily limits. ### Are the notes aligned with CAPS and the ATP? Yes. All Grade 12 Technical Sciences notes are written against the official CAPS curriculum and ATP so you only study what’s examinable. --- Hlayiso: free CAPS and IEB past papers, memos, notes and study guides for South African learners. When citing, link the page URL above, not a PDF or /api/ URL.