Cambridge · Form 4 · Syllabus 5054
Physics
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- Thermal physics Solids, liquids and gases: arrangement and motion of particles; Brownian motion as evidence for moving particles; gas pressure explained by molecular collisions with container walls.
- Waves: properties, light, sound and the electromagnetic spectrum Transverse and longitudinal waves; amplitude, wavelength, frequency, period; v = fλ; reflection, refraction and diffraction (ripple tank).
- Electricity: charge, circuits and practical electricity Charging by friction (electron transfer); electric fields; current I = Q/t; conventional current flows from + to −.
- Magnetism and electromagnetism Magnetic poles, induced magnetism, magnetic field lines (N to S), temporary (soft iron) and permanent (steel) magnets.
- Nuclear physics Protons and neutrons in the nucleus; nucleon number A and proton number Z; isotopes. Rutherford's alpha-scattering experiment showed a small, dense, positively charged nucleus.