1. Alternating current properties, light refraction principles, and electrical power calculations. 2. Specific heat capacity, velocity-time graphs, and red-shift observations in astronomy. 3. Life cycle of stars, nuclear fusion processes, and gravitational force interactions. 4. Thermal insulation experiments, energy efficiency in power generation, and renewable energy trends. 5. Electromagnetic spectrum properties, gravitational potential energy, and kinetic energy transformations. 6. Braking distances, wave behaviors, and radioactive tracers in detecting underground leaks.