The School of Mathematics

Grade 12 Physical Sciences – Term 3

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About Course

This Grade 12 Physical Sciences Term 3 course covers advanced electric circuits, electrodynamics, optical phenomena and electrochemical reactions before the trial examination.

Learners solve internal-resistance and alternating-current problems, apply the photoelectric equation and analyse galvanic and electrolytic cells.

What Will You Learn?

  • ATP-aligned lessons, guided practice, quizzes, revision activities and formal-assessment preparation.

Course Content

Series and Parallel Circuit Revision
<p>Solve current, potential difference and resistance problems for resistor networks.</p>

Internal Resistance
<p>Apply emf, terminal potential difference and internal resistance relationships in circuit calculations.</p>

Generators and Electromagnetic Induction
<p>Explain AC and DC generators using electromagnetic induction and energy conversion.</p>

Electric Motors
<p>Explain motor operation, component functions and energy conversion.</p>

Alternating Current and RMS Values
<p>Calculate rms voltage, rms current and average power in resistive AC circuits.</p>

Photoelectric Effect
<p>Apply the photoelectric equation and explain the effects of frequency and intensity.</p>

Atomic Emission and Absorption Spectra
<p>Explain line spectra using quantised electron energy transitions.</p>

Oxidation and Reduction
<p>Define oxidation, reduction, oxidising agents and reducing agents using electron transfer and oxidation numbers.</p>

Galvanic Cells
<p>Identify electrodes, electrolytes and salt bridges and predict ion and electron movement.</p>

Standard Electrode Potentials
<p>Use the standard hydrogen electrode and reduction-potential table to analyse cells.</p>

Cell Notation and Cell Potential
<p>Write cell notation, half-reactions and overall equations and calculate cell emf.</p>

Electrolytic Cells
<p>Describe electrolytic cells, ion movement, electrode reactions and external electron flow.</p>

Electrolysis Applications
<p>Analyse common industrial and laboratory electrolysis processes.</p>

Term 3 Consolidation and Trial Examination
<p>Consolidate annual Physics and Chemistry content and prepare for both trial-examination papers.</p>

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