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The 3-1 Investigation tests your ability to collect data for a non-linear relationship, recording and processing uncertainties in the data. It also requires you to show uncertainties on a graph and critically compare results with the theoretical equation.
 Uncertainty converter and calculator
 Uncertainty converter and calculator
Excel workbook allows you to enter a value and uncertainty and will then calculate the re-processed data and give absolute and percentage uncertainty values for square, square root and inverse functions
This may not function correctly when opened in Google Sheets
Also available on the TES website as teaching-resource 12880208
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