UNIT OVERVIEW

This revision unit covers both Physics and Chemistry content from Terms 1 and 2. Your mid-year examination is a 2-hour integrated paper, so you need to switch between topics and apply knowledge across different contexts.

What you will consolidate:

• Matter classification, atomic structure, and the periodic table
• Chemical bonding: covalent, ionic, and metallic structures
• Laws of chemical change and balancing equations
• Reactions in aqueous solutions (precipitation, acid-base, redox)
• Magnetism and magnetic field patterns
• Electrostatics: charge interactions and polarisation
• Electric circuits: resistance, current, and voltage in series and parallel

Why these concepts matter:

• Home circuits and load shedding: Understanding series and parallel connections explains why some appliances work when others don't during power cuts
• Water treatment: Precipitation reactions remove harmful ions from drinking water
• Lightning protection: Electrostatic principles protect buildings from lightning strikes
• Mining industries: Chemical bonding concepts apply to gold and platinum extraction
• Medical scanners: MRI machines use magnetism principles

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