0625/42 · Oct/Nov 2024
Theory (Extended) · 80 marks · 11 questions
- Question 18 marks
Mass and weight, speed–time graphs and terminal velocity.
- Question 25 marks
Momentum and impulse.
- Question 37 marks
Energy from the Sun and wind, and efficiency.
- Question 46 marks
Evaporation and boiling, particles and gas pressure.
- Question 56 marks
Thermal energy transfer and surface temperature.
- Question 68 marks
Diffraction of sound, wave speed, and a plane mirror.
- Question 77 marks
e.m.f., p.d. and Ohm’s law in a heater circuit, and parallel currents.
- Question 86 marks
Ultrasound echoes: distance, speed and time.
- Question 99 marks
Field of a coil, transformers, efficiency, and energy and charge.
- Question 109 marks
Isotopes, half-life, radioactive dating and uses.
- Question 119 marks
Planets, orbital speed and energy in a comet’s orbit.