Uncertainty Flashcards
1
Q
What is resolution
A
The smaller measuring interval and the source of uncertainty in a single reading
2
Q
Uncertainty in measurement
A
+/- the resolution of the instrument
3
Q
Systematic error
A
Fault with the equipment
4
Q
Random error
A
Human error
5
Q
absolute uncertainty
A
The absolute value for an uncertainty has to be estimated
6
Q
How to work out absolute uncertainty
A
(Largest measurement - smallest measurement) / 2 or half the resolution
7
Q
Percentage uncertainty
A
(Absolute uncertainty / actual reading) x 100
8
Q
Accurate
A
Close to the true value
9
Q
Precise
A
Consistency of values
