Wood — screws, nails and bolts; Metal — bolts and rivets. Candidates will be expected to: - recognise and use expressions in decimal form; 10 G. Candidates are not expected to produce an answer by recall. Guidance should be given on the correct taking of notes and writing up of experiments. Concepts to be illustrated by practical work. Distinction between direction of flow of electrons and convectional current must be made. Demonstrate the principle of a fuse using steel wool in a d.
The question papers will provide notes on qualitative analysis and data for the use of candidates in the examination — see data sheets i and ii. Detergents: acids and petroleum products. Candidates will be expected to carry out the experiments from the instructions and notes given in the question papers. Practical work on beams using similar quantities mass per unit length of material but different cross-sectional shapes. The joule as the unit of energy. Ability to handle negative acceleration is expected.
The mole, the Avogadro constant, empirical and molecular formulae. Construction and loading of models. Formulae restricted to those compounds or ions mentioned in the syllabus. Symbols such as 12 C. Practice on measuring should be given throughout the course wherever applicable. Electrode reactions, concentration and preferential discharge.
Steel making, welding and medical treatment. All questions will be designed to give the same weighting to the assessment objectives. Construction and manipulation of a simple d. Colour, physical state, displacement reactions with other halide ions. Outline means to give the essential points. Individual and group work is encouraged.
When used with reference to particular phenomena the term usually implies that the description should include reference to visual observations associated with the phenomena. Schools are encouraged to rearrange the topics to suit their own conditions. Section B 30 marks, 40 min will be based on the chemistry section of the syllabus. The topics in each section are listed below. It is anticipated that these will entail revision only and do not need further detailed treatment, although more activities may be required by the syllabus. An alkali as a soluble base.
In other contexts, describe and give an account of should be interpreted more generally, i. Blend as containing ethanol and petrol. Experiment to show the action of soaps. Experiments to show that objects fall at the same rate. Experiments using foam rubber blocks, green twigs and hollow stems.
A pupilcentred problem-solving approach should be adopted. Destructive distillation as a means of producing better fuels. Specific behavioural learning objectives are stated in each section of the syllabus. Experiments should be planned and designed in advance. Teachers are encouraged to use their own additional examples to assist pupils in understanding concepts and acquiring skills. Surface contact: wood — gluing with or without dowels and tongue and groove; Metals — soldering, brazing and welding; Plastic — plastic welding and gluing. These questions will be designed to test familiarity with laboratory practical procedures.
Experiments using voltmeter in a series circuit. When used with reference to particular experiments the description usually follows a standard pattern, e. Use of equations involving symbols to represent changes in the composition of the nucleus when particles are emitted. Simple calculations which might involve information in tables or decay curves. Where it will facilitate learning, the drawing of diagrams should be encouraged.
A minimum of six teaching periods 3½ hours per week required. Molecular masses for covalent compounds and formula masses for ionic compounds. Suggest may imply that there is more than one possible answer or that candidates are expected to apply their general knowledge to a novel situation. Practical application expected, but no details of operation required. An appreciation of both durability and cost as factors in determining choice. Practical activities on magnetism to be carried out. The syllabus is a two-year course of study.
Design of domestic lightning conductors. Candidates will be required to answer any two questions. Predict implies that the candidate is expected to state what is likely to happen by analysis given information. Emphasis must be on the understanding of concepts rather than on the memorisation of specific examples that illustrate these concepts. Experiments to measure distance, speed and acceleration using ticker timer or other method to record motion. Only names of C1 to C5 unbranched alkanes required. No derivation or use of the three equations of motion required.