Physics (A) J249,04 Higher November 2020 , OCR GCSE Past Papers with Mark Schemes

1. Wave frequency calculations, electromagnetic wave properties, and energy transfer in the national grid.
2. Electromagnetic spectrum ordering, geostationary satellite properties, and kinetic energy calculations.
3. Nuclear fusion principles, light refraction through lenses, and thermal energy loss in buildings.
4. Wind energy generation, ultrasound imaging techniques, and Americium-241 decay in smoke detectors.
5. Energy efficiency in electrical appliances, Hubble’s law and redshift, and Big Bang theory evidence.
6. Transformer applications in voltage regulation, power generation efficiency, and peer review in scientific research.