1. Sound wave behavior in different mediums, electromagnetic wave energy transfer, and radiation effects on cells. 2. Isotope properties, redshift in galaxies, and planetary motion principles. 3. Transformer applications in the national grid, efficiency calculations, and kinetic energy computations. 4. Reflection and refraction of light, color filtration effects, and lens applications in vision correction. 5. Nuclear fusion processes in stars, fission vs. fusion comparisons, and nuclear power advantages and disadvantages. 6. Seismic wave properties, radioactive decay equations, and ultrasound applications in medical imaging.