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assignment GCE Physics 2008 marking grids
A2
A: assignment Planning
Ref Criterion Mark
P1 指导assignment Identifies the most appropriate apparatus required for the practical in advance
P2 Provides clear details of apparatus required including approximate dimensions and/ or component values (for example, dimensions of items such as card or string, value of resistor)
P3 Draws an appropriately labeled diagram of the apparatus to be used
P4 States how to measure one quantity using the most appropriate instrument
P5 Explains the choice of the measuring instrument with reference to the scale of the instrument as appropriate and/ or the number of measurements to be taken
P6 States how to measure a second quantity using the most appropriate instrument
P7 Explains the choice of the second measuring instrument with reference to the scale of the instrument as appropriate and/ or the number of measurements to be taken
P8 Demonstrates knowledge of correct measuring techniques
P9 Identifies and states how to control all other relevant quantities to make it a fair test
P10 Comments on whether repeat readings are appropriate for this experiment
P11 Comments on all relevant safety aspects of the experiment
P12 Discuss how the data collected will be used
P13 Identifies the main sources of uncertainty and/ or systematic error
P14 Plan contains few grammatical or spelling errors
P15 Plan is structured using appropriate subheadings
P16 Plan is clear on first reading
Total marks for this section
B: assignment Implementation and measurements
Ref Criterion Mark
M1 Records all measurement with appropriate precision, using a table where appropriate
M2 Reading show appreciation of uncertainty
M3 Uses correct units throughout
M4 Refers to initial plan while working and modifies if appropriate
M5 Obtains an appropriate number of measurement
M6 Obtains measurements over an appropriate range
Total marks for this section
C: assignment Analysis
Ref Criterion Mark
A1 Produces a graph with appropriate axes (including units)
Produces a graph using appropriate scales
Plots points accurately
Draws line of best fit (either a straight line or a smooth curve)
Derives relation between two variables or determines constant
Q Processes and display data appropriately to obtain a straight line where possible, for example, using a log/log graph
Determines gradient using large triangle
Uses gradient with correct units
Uses appropriate number of significant figures throughout
Uses relevant physics principles correctly
Uses the terms precision and either accuracy or sensitivity appropriately
Discuss more than one source of error qualitatively
Calculates errors quantitatively
Compounds errors correctly
Discuss realistic modifications to reduce error/improve experiment #p#分页标题#e#
States a valid conclusion clearly
Discuss final conclusion in relation to original aim of experiment
指导assignment Suggests relevant further work
Total marks for this section
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