- Question 18 marks
Collisions and momentum, speed–time graphs and the force in a collision.
- Question 211 marks
Density, liquid pressure, specific heat capacity and evaporation.
- Question 39 marks
Solar cells, thermal energy transfer, and charge from current and time.
- Question 48 marks
Refraction, critical angle, optical fibres and electromagnetic waves.
- Question 57 marks
Charging by friction, and gas particles and expansion.
- Question 69 marks
Resistance, an LDR and a series circuit.
- Question 710 marks
Magnetic fields, electromagnetic induction and an a.c. generator.
- Question 89 marks
Stars, galaxies, light-years and orbital speed.
- Question 99 marks
Radioactive decay, alpha particles, detectors and half-life.