1. Forces & Motion | Interpreting speed-time graphs, calculating distance traveled, understanding forces and weight. 2. Work, Energy & Power | Determining gravitational potential energy, identifying energy storage in water, understanding efficiency and power. 3. Heat & States of Matter | Differentiating phase changes, understanding gas pressure changes, explaining heat expansion in electrical cables. 4. Waves & Light | Identifying wave properties, diffraction, refraction, and dispersion of light in a prism. 5. Electricity & Circuits | Calculating resistance and current, understanding d.c. voltage graphs, circuit configurations. 6. Magnetism & Induction | Determining induced current directions, factors affecting motor torque, behavior of charged particles in fields. 7. Radioactivity & Half-Life | Identifying types of radiation, calculating half-life, understanding nuclear decay and element transformation. 8. Astronomy & Cosmology | Identifying celestial bodies, describing solar system formation, explaining redshift and universe expansion.