Revision notes.

Try this with Physical Sciences

1. Close your notes and write the main idea in two sentences from memory.
2. Reopen the source and correct the first mistake or omission you find.
3. Add one example and one question to test whether you can apply the idea.

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Topics in the resource inventory

• Atomic structure and the periodic table: Electron configuration, shells and periodic trends in atomic radii and valency
• Describing motion: Scalars, vectors and the equations of uniformly accelerated motion
• Conservation of momentum: One-dimensional collisions and explosions using Σp(before) = Σp(after)
• Bonding and structure: Metallic, ionic, covalent molecular and covalent network structures and the properties they explain
• The mole and reacting quantities: n = m/M, n = N/N(A), the Law of Conservation of Mass and simple stoichiometry
• Isotopes and relative atomic mass: Isotopes, mass spectra and calculating relative atomic mass from abundances
• Motion graphs: Constructing and reading s-t, v-t and a-t graphs, and using slopes and areas
• Work, energy and the conservation of energy: Work Done = Fs, Ek and Ep, energy transformations and elastic versus inelastic collisions
• Ions, formulae and naming: Common cations and anions, naming ionic and covalent molecular compounds, and electron dot diagrams
• Empirical and molecular formulae: Percentage composition by mass, water of crystallisation and formula determination
• Radioactive decay and decay equations: Alpha, beta negative and gamma decay: equations, metastable isotopes and penetrating power
• Vectors and projectile motion: Right-angle vector addition, vertical motion under gravity and horizontal projectile motion
• Power: Average power in kinetic and gravitational potential energy situations, and household kilowatt-hour costs
• Analytical chemistry and precipitation: Solubility rules, overall and net ionic equations, spectator ions, flame tests and gas tests
• Acids, bases and pH: The Brønsted-Lowry model, common acids and bases, monoprotic and polyprotic acids, strong versus concentrated
• Half-life, fission and radiation safety: Half-life calculations, decay graphs, induced fission chain reactions and the biological effects of ionising radiation
• Newton's laws, force and momentum: Force diagrams, weight and normal reaction, F = ma and F = Δp/Δt
• Electric circuits: Charge, current, potential difference, Ohm's Law, ohmic and non-ohmic devices, and series and parallel circuits
• Organic chemistry: aliphatic hydrocarbons: IUPAC naming, isomers and the reactions of alkanes, alkenes and cyclic compounds
• Solutions, dilution and titration: c = n/V, converting mol L-1 and g L-1, dilution calculations and simple acid-base titrations