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Year 9

Dive deeper into Newton's laws, energy, Ohm's law and wave properties.

🚀 Forces & Motion 3 topics

Newton's Laws of Motion

State and apply all three of Newton's laws with examples.

Calculate work done: W = Fd; link to kinetic and potential energy.

Calculate momentum p = mv; understand impulse and conservation.

🌡️ Energy & Thermodynamics 2 topics

Power & Efficiency

Calculate power P = W/t; calculate efficiency as useful/total energy.

Specific Heat Capacity

Use Q = mcΔT to calculate heat energy transferred.

🌊 Waves & Optics 2 topics

Wave Properties

Describe amplitude, frequency, wavelength; use v = fλ.

Refraction & Lenses

Explain refraction using Snell's law; describe converging and diverging lenses.

⚡ Electricity & Magnetism 2 topics

Ohm's Law & Resistance

Apply V = IR; describe factors affecting resistance.

Electrical Power

Calculate electrical power: P = VI and P = I²R.

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