Lebanese Grade 9 Physics: Electricity Foundations

Selective Grade 9/Brevet support based on CRDP 2025–2026 chapter references. Four lessons teach virtual meter/circuit literacy, DC and alternating-voltage traces, ohmic resistance, and constant-DC power and energy. The module is not a full physics course or every objective in the referenced chapters. Mechanics, equilibrium and Archimedes up-thrust are outside this module. Official 2026–2027 alignment has not been verified; no exam date, result or accreditation is promised.

What you will learn

• Distinguish current from voltage, convert mA to A, and interpret virtual meter placement and polarity.
• Distinguish a constant DC trace from an alternating-voltage trace using supplied signs and times, and explain the mains-safety boundary.
• Apply U = RI for an ideal ohmic resistor and interpret supplied voltage–current data and graph gradients.
• Calculate constant DC power and energy using consistent units and an explicitly hypothetical usage cost.

Who it is for

English-language Lebanese Grade 9/Brevet learners who need targeted prerequisite repair.

Prerequisites

• Read decimals and signed numbers
• Multiply and divide
• Recognize a simple labelled diagram

Included learning material

• Four original written lessons with worked examples and independent practice.
• Explanatory answer keys and accessible text/table visual explanations.
• A written module self-check and capstone with model answers and rubric.

Lesson sequence

1. Current voltage and virtual meters
2. Reading DC and alternating voltage
3. Ohmic resistance from equations and graphs
4. Electric power energy and usage units