The link in the previous below should now work for the test about resistivity
Enjoy
Ms Hamnett
Tuesday 28 February 2012
Thursday 23 February 2012
ISA tips 2013
Here is the checklist and the uncertainties guide
AQA world ISA guide to calculating uncertainty
- Is the variable independent (you change it) or dependent (several values and a mean)?
- For independent variable, uncertainty is + or – smallest measurement on instrument
- For dependent, plus or minus half the range,
- Percentage uncertainty independent is precision / value then x 100%
- Percentage uncertainty dependent is 0.5 x range / mean then x 100%
- For percentage uncertainty of a calculated value, find the total percentage uncertainty by adding the parts of each calculation together
ISA Analysis
Stage One (graph and table)
What are you losing marks on?
Precision
Units
Calculations
Plotting
Scales
Best fit line
Section A (about your experiment)
What are you losing marks on?
Variables
Accuracy questions
Uncertainties
Improvements
Improvements
Section B (related experiment)
What are you losing marks on?
Calculations
Variables
Graph plotting
Gradient calculation
“Theory predicts that…” rearranging equations
Describing another experiment
links to practice ISA papers
Follow the links below to the practice ISA papers. Use the guide on the next blog to work out your strengths and weaknesses and work on these - bring any questions to the after school session on Tuesday in w10
Q11 task sheet
Q11 test
Q11 marking guidance
P11 task sheet
P11 test
P11 marking guidance
P10 task sheet
P10 test
P10 marking guidance
Q10 task sheet
Q10 test
Q10 marking guidance
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