Physics 0625 (Cambridge O Level / IGCSE)
Original practice questions with long-form, step-by-step worked solutions, organised by the 0625 syllabus strands. Everything here is free to read.
- Subject code
- 0625
- Tier
- Core & Extended
- Topics
- 15
- Worked questions
- 150
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Official Cambridge references: 0625 syllabus ↗ · past papers ↗
Motion, forces and energy
Motion and Motion Graphs
Define speed, velocity and acceleration; use v = s/t and a = Δv/Δt; plot and interpret distance–time and speed–time graphs, including gradients, area under a…
Forces and Newton’s Laws
Identify the effects of forces on motion and shape; find resultant forces; apply F = ma; use load–extension graphs and the spring constant; friction, drag and…
Energy, Work and Power
Track energy stores and transfers; apply the principle of conservation of energy; use KE = ½mv², ΔEp = mgΔh, W = Fd and P = E/t (or W/t) in calculations…
Density
Use ρ = m/V; describe experiments to find the density of liquids, regular solids and irregular solids (displacement method); predict floating and sinking from…
Moments, Equilibrium and Centre of Gravity
Calculate the moment of a force as force × perpendicular distance; apply the principle of moments to balanced beams and equilibrium problems; locate the…
Pressure
Use p = F/A and explain everyday pressure effects; calculate the pressure change with depth in a liquid using Δp = ρgΔh.
Thermal physics
Thermal Energy Transfer
Describe and explain conduction, convection and radiation, including experiments demonstrating each; compare good and bad emitters/absorbers of infrared…
Kinetic Particle Model of Matter
Explain the properties of solids, liquids and gases using particle arrangement and motion; relate temperature to particle kinetic energy; use the absolute…
Waves
General Wave Properties
Describe waves as energy transfer without matter transfer; define wavelength, frequency, amplitude and wavefront; use v = fλ; distinguish transverse and…
Reflection, Refraction and Lenses
Construct ray diagrams for plane-mirror images and for thin converging lenses; use the law of reflection; apply n = sin i / sin r and explain total internal…
The Electromagnetic Spectrum
Order the regions of the electromagnetic spectrum by wavelength/frequency; recall that all EM waves travel at 3.0 × 10⁸ m/s in a vacuum; match each region to…
Electricity and magnetism
Electric Circuits and Resistance
Draw and interpret circuit diagrams; use I = Q/t, V = W/Q and R = V/I; combine resistors in series and parallel; relate resistance to wire length and…
Electromagnetic Effects
Describe electromagnetic induction and the factors affecting induced e.m.f.; explain the magnetic effect of a current, the motor effect and the d.c. motor…