Combined Science (B) J260,03 Foundation November 2020, OCR GCSE Past Papers with Mark Schemes

1. Properties of electromagnetic waves, wave speed calculation, and types of waves in different mediums.

2. Electric circuits, including series and parallel configurations, brightness variations, and safety measures for circuit experiments.

3. Magnetic fields around current-carrying wires, factors affecting field strength, and motion of charged objects in magnetic fields.

4. Characteristics of isotopes, alpha decay processes, and implications of nuclear radiation contamination versus irradiation.

5. Gravitational potential energy calculations, efficiency of machines, and the fate of excess energy in mechanical systems.

6. Acceleration of objects under varying forces, Sankey diagrams for energy transfers, and analysis of energy efficiency in practical systems.