1. resistance of wire varying with length, cross-sectional area, material, temperature 2. wave interference, double-slit experiment, fringe spacing, wavelength calculation 3. SUVAT equation application, acceleration from velocity-time graph, motion under gravity 4. photon energy, threshold frequency, photoelectric effect, work function calculation 5. momentum conservation, elastic collisions, kinetic energy analysis in two-body systems 6. uncertainty in measurements, percentage uncertainty, propagation of error in derived quantities