Uncertainties Flashcards
1
Q
Actual uncertainty
A
Shows how different the measurement could be from the actual value
2
Q
Percentage uncertainty
A
Shows how important the difference is
3
Q
How to find uncertainty for an instrument
A
Uncertainty in one reading- half of the smallest measurable value
Uncertainty in measurement- the smallest measurable value
4
Q
How to find actual uncertainty for repeated readings
A
Range/ 2
5
Q
When adding or subtracting readings…
A
Add the actual uncertainties
6
Q
When multiplying or dividing uncertainties…
A
Add the percentage uncertainties
7
Q
How do you plot uncertainties?
A
Have error bars around points
8
Q
How do you find percentage uncertainty using a graph?
A
(best m or c - worse m or c) / best m or c x 100
