Uncertainties Flashcards
1
Q
Uncertainty of mean data?
A
(Max value - min value) / 2
2
Q
Adding or subtracting data (wire stretched from x cm to y cm)
A
Add absolute uncertainties
3
Q
Multiplying or dividing data (mass with force applied to it)
A
Add the percentage uncertainties
4
Q
Raising data to a power (radius squared for circumference)
A
Multiply percentage uncertainty by the power
5
Q
What does repeating an experiment do?
A
Reduces random error, increases precision
6
Q
What does taking the mean of the results do?
A
Reducers random error
7
Q
What does removing outliers do?
A
Reduces random error
8
Q
Why use a light gate instead of a stopwatch?
A
Reduces human error
