# Grade 11 Technical Sciences Notes

> CAPS-aligned Grade 11 Technical Sciences revision notes, broken down topic by topic with worked examples, diagrams, and key definitions.

- Page: https://www.hlayiso.com/grade-11/technical-sciences/notes

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## Topics

Each section has a free preview; the full notes are in the free Hlayiso account.

### Introduction to mechanics and sign conventions

- [Introduction to mechanics and sign conventions notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/introduction-to-mechanics-and-sign-conventions)
- [Sign conventions and systems of direction](https://www.hlayiso.com/grade-11/technical-sciences/notes/introduction-to-mechanics-and-sign-conventions/sign-conventions-and-systems-of-direction)
- [Direct and indirect proportion graphs](https://www.hlayiso.com/grade-11/technical-sciences/notes/introduction-to-mechanics-and-sign-conventions/direct-and-indirect-proportion-graphs)

### Vectors and resultant of forces

- [Vectors and resultant of forces notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/vectors-and-resultant-of-forces)
- [Theorem of Pythagoras and perpendicular vectors](https://www.hlayiso.com/grade-11/technical-sciences/notes/vectors-and-resultant-of-forces/theorem-of-pythagoras-and-perpendicular-vectors)
- [Co-linear and co-planar vectors](https://www.hlayiso.com/grade-11/technical-sciences/notes/vectors-and-resultant-of-forces/co-linear-and-co-planar-vectors)
- [Resultant vectors: head-to-tail and parallelogram methods](https://www.hlayiso.com/grade-11/technical-sciences/notes/vectors-and-resultant-of-forces/resultant-vectors-head-to-tail-and-parallelogram-methods)

### Resolution of forces and friction

- [Resolution of forces and friction notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/resolution-of-forces-and-friction)
- [Resolution of forces into components](https://www.hlayiso.com/grade-11/technical-sciences/notes/resolution-of-forces-and-friction/resolution-of-forces-into-components)
- [Static and kinetic frictional forces](https://www.hlayiso.com/grade-11/technical-sciences/notes/resolution-of-forces-and-friction/static-and-kinetic-frictional-forces)

### Magnets and the magnetic field

- [Magnets and the magnetic field notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/magnets-and-the-magnetic-field)
- [Magnets, magnetic fields and field lines](https://www.hlayiso.com/grade-11/technical-sciences/notes/magnets-and-the-magnetic-field/magnets-magnetic-fields-and-field-lines)
- [The Earth's magnetic field](https://www.hlayiso.com/grade-11/technical-sciences/notes/magnets-and-the-magnetic-field/the-earths-magnetic-field)

### Pulses and waves

- [Pulses and waves notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/pulses-and-waves)
- [Transverse and Longitudinal Pulses](https://www.hlayiso.com/grade-11/technical-sciences/notes/pulses-and-waves/transverse-and-longitudinal-pulses)
- [Transverse and Longitudinal Waves](https://www.hlayiso.com/grade-11/technical-sciences/notes/pulses-and-waves/transverse-and-longitudinal-waves)
- [Wave Terminology](https://www.hlayiso.com/grade-11/technical-sciences/notes/pulses-and-waves/wave-terminology)

### Sound waves

- [Sound waves notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/sound-waves)
- [Properties of Sound Waves and Echoes](https://www.hlayiso.com/grade-11/technical-sciences/notes/sound-waves/properties-of-sound-waves-and-echoes)
- [Pitch, Loudness and Frequency](https://www.hlayiso.com/grade-11/technical-sciences/notes/sound-waves/pitch-loudness-and-frequency)

### Electrostatics

- [Electrostatics notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/electrostatics)
- [Charges and Coulomb's Law](https://www.hlayiso.com/grade-11/technical-sciences/notes/electrostatics/charges-and-coulombs-law)
- [Electric Fields and Electric Field Lines](https://www.hlayiso.com/grade-11/technical-sciences/notes/electrostatics/electric-fields-and-electric-field-lines)
- [Electric Field Between Parallel Plates](https://www.hlayiso.com/grade-11/technical-sciences/notes/electrostatics/electric-field-between-parallel-plates)

### Electric circuits

- [Electric circuits notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/electric-circuits)
- [Circuit Components, Current and Potential Difference](https://www.hlayiso.com/grade-11/technical-sciences/notes/electric-circuits/circuit-components-current-and-potential-difference)
- [Resistance, Ohm's Law and Series-Parallel Circuits](https://www.hlayiso.com/grade-11/technical-sciences/notes/electric-circuits/resistance-ohms-law-and-series-parallel-circuits)

### Ohm's law and circuit calculations

- [Ohm's law and circuit calculations notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/ohms-law-and-circuit-calculations)
- [Ohm's law and Ohmic/non-Ohmic conductors](https://www.hlayiso.com/grade-11/technical-sciences/notes/ohms-law-and-circuit-calculations/ohms-law-and-ohmicnon-ohmic-conductors)
- [Series-parallel circuit calculations](https://www.hlayiso.com/grade-11/technical-sciences/notes/ohms-law-and-circuit-calculations/series-parallel-circuit-calculations)
- [Emf and internal resistance](https://www.hlayiso.com/grade-11/technical-sciences/notes/ohms-law-and-circuit-calculations/emf-and-internal-resistance)

### Heat and specific heat capacity

- [Heat and specific heat capacity notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/heat-and-specific-heat-capacity)
- [Specific heat capacity and heat capacity](https://www.hlayiso.com/grade-11/technical-sciences/notes/heat-and-specific-heat-capacity/specific-heat-capacity-and-heat-capacity)
- [Law of conservation of heat](https://www.hlayiso.com/grade-11/technical-sciences/notes/heat-and-specific-heat-capacity/law-of-conservation-of-heat)

### Thermodynamics

- [Thermodynamics notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics)
- [Thermodynamic systems and variables](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics/thermodynamic-systems-and-variables)
- [First law of thermodynamics](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics/first-law-of-thermodynamics)
- [Heat engines, efficiency and refrigerators](https://www.hlayiso.com/grade-11/technical-sciences/notes/thermodynamics/heat-engines-efficiency-and-refrigerators)

### Classification of matter

- [Classification of matter notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/classification-of-matter)
- [Pure substances, elements and compounds](https://www.hlayiso.com/grade-11/technical-sciences/notes/classification-of-matter/pure-substances-elements-and-compounds)
- [Naming compounds, molecular formulae and balancing equations](https://www.hlayiso.com/grade-11/technical-sciences/notes/classification-of-matter/naming-compounds-molecular-formulae-and-balancing-equations)

### Oxidation and reduction

- [Oxidation and reduction notes](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction)
- [Oxidation, reduction and redox agents](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction/oxidation-reduction-and-redox-agents)
- [Oxidation numbers](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction/oxidation-numbers)
- [Electrolysis](https://www.hlayiso.com/grade-11/technical-sciences/notes/oxidation-and-reduction/electrolysis)

## Frequently asked questions

### Are the Grade 11 Technical Sciences notes free?

Each Grade 11 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 11 Technical Sciences notes are written against the official CAPS curriculum and ATP so you only study what’s examinable.

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