Uncertainty of mean data?
(Max value - min value) / 2
Adding or subtracting data (wire stretched from x cm to y cm)
Add absolute uncertainties
Multiplying or dividing data (mass with force applied to it)
Add the percentage uncertainties
Raising data to a power (radius squared for circumference)
Multiply percentage uncertainty by the power
What does repeating an experiment do?
Reduces random error, increases precision
What does taking the mean of the results do?
Reducers random error
What does removing outliers do?
Reduces random error
Why use a light gate instead of a stopwatch?
Reduces human error