Cambridge International A Level Physics (9702) demands rigorous mathematical precision, conceptual clarity, and rapid proportional reasoning across Mechanics, Waves, Electricity, and Modern Physics.
1. Key Formula Sheet by Syllabus Topic
Circular Motion & Gravitational Fields (A2)
$$a = \frac{v^2}{r} = \omega^2 r, \quad F_G = G\frac{M m}{r^2}, \quad g = \frac{GM}{r^2}, \quad \Phi = -\frac{GM}{r}$$
Kepler's Third Law: $T^2 = \left(\frac{4\pi^2}{GM}\right)r^3 \implies T^2 \propto r^3$.
Capacitance & Electric Fields
$$E = rac{V}{d}, \quad F_E = rac{q_1 q_2}{4\pi arepsilon_0 r^2}, \quad C = rac{Q}{V} = rac{ arepsilon_r arepsilon_0 A}{d}, \quad W = rac{1}{2}QV = rac{1}{2}CV^2$$
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