Physics IGCSE 0625 Paper 5

Demonstrate knowledge of how to select and safely use techniques, apparatus and materials (including
following a sequence of instructions where appropriate):

– identify apparatus from diagrams or descriptions
– draw, complete or label diagrams of apparatus
– use, or explain the use of, common techniques, apparatus and materials
– select the most appropriate apparatus or method for the task and justify the choice made
– describe and explain hazards and identify safety precautions
– describe and explain techniques used to ensure the accuracy of observations and data

Plan experiments and investigations:

– identify the independent variable and dependent variable
– describe how and explain why variables should be controlled
– suggest an appropriate number and range of values for the independent variable
– suggest the most appropriate apparatus or technique and justify the choice made
– describe experimental procedures
– identify risks and suggest appropriate safety precautions
– describe how to record the results of an experiment
– describe how to process the results of an experiment to form a conclusion or to evaluate a prediction
– make reasoned predictions of expected results

Make and record observations, measurements, and estimates:

– take readings from the apparatus (analog and digital) or from diagrams of apparatus
– take readings with appropriate precision, reading to the nearest half-scale division where required
– correct for zero errors where required
– make observations, measurements or estimates that are in agreement with expected results or values
– take sufficient observations or measurements to be reliable
– repeat observations or measurements where appropriate
– record qualitative observations from tests
– record observations and measurements systematically, for example in a suitable table, to an appropriate
degree of precision and using appropriate units

Interpret and evaluate experimental observations and data:

– process data, including for use in further calculations or for graph plotting, using a calculator as appropriate
– present data graphically, including the use of best-fit lines where appropriate
– analyze and interpret observations and data, including data presented graphically
– use interpolation and extrapolation graphically to determine a gradient or intercept
– form conclusions justified by reference to observations and data and with appropriate explanation
– evaluate the quality of observations and data, identifying any anomalous results and taking appropriate
action
– comment on and explain whether results are equal within the limits of experimental accuracy (assumed to
be ± 10% at this level of study)