iGCSE Physics (0625) core and supplement: Study Notes -2023,2024 &2025 Syllabus IGCSE Physics (0625) Practice Questions Unit 1. Motion, forces and energy1.1 Physical quantities and measurement techniques–1.2 Motion 1.3 Mass and weight1.4 Density1.5 Forces1.5.1 Effects of forces1.5.2 Turning effect of forces1.5.3 Centre of gravity1.7 Energy, work and power1.7.1 Energy1.7.2 Work1.7.3 Energy resources1.7.4 Power1.8 Pressure Unit 2. Thermal physics2.1 Simple kinetic molecular model of matter2.1.1 States of matter2.1.2 Particle model2.1.3 Gases and the absolute scale of temperature2.1.3 Evaporation-old2.1.4 Pressure changes-old2.2 Thermal properties and temperature2.2.1 Thermal expansion of solids, liquids and gases2.2.2 Specific heat capacity2.2.3 Melting, boiling and evaporation2.3 Thermal processes2.3.1 Conduction2.3.2 Convection2.3.3 Radiation2.3.4 Consequences of energy transfer Unit 3. Waves3.1 General properties of waves3.2 Light3.2.1 Reflection of light3.2.2 Refraction of light3.2.3 Thin lens3.2.4 Dispersion of light3.3 Electromagnetic spectrum3.4 Sound Unit 4. Electricity and magnetism4.1 Simple phenomena of magnetism4.2 Electrical quantities4.2.1 Electric charge4.2.2 Current4.2.3 Electromotive force and potential difference 4.2.5 Resistance4.2.6 Electrical working4.3 Electric circuits4.3.1 Circuit diagrams4.3.2 Series and parallel circuits4.3.3 Action and use of circuit components4.4 Electrical safety4.5 Electromagnetic effects4.5.1 Electromagnetic induction4.5.2 a.c. generator4.5.3 The magnetic effect of a current4.5.4 Force on a current-carrying conductor4.5.5 d.c. motor4.5.6 Transformer Unit 5. Nuclear physics5.1 The nuclear model of the atom5.1.1 The Atom5.1.2 The Nucleus5.2 Radioactivity5.2.1 Detection of radioactivity5.2.2 The three types of nuclear emission5.2.3 Radioactive decay5.2.4 Half-life5.2.5 Safety precautions Unit 6. Space physics6.1 Earth and the Solar System6.1.1 The Earth6.1.2 The Solar System6.2 Stars and the Universe6.2.1 The Sun as a star6.2.2 Stars6.2.3 The Universe
