(1.2) - Limitation of physical measurements Flashcards
(13 cards)
1
Q
Random error
A
Error caused by unpredictable factors
2
Q
Systematic error
A
Error that comes from faulty tools or mistakes
3
Q
Zero error
A
Systematic error when a tool shows a reading even when true reading is zero
4
Q
Precise measurements
A
Values are close to each other
5
Q
Accurate measurements
A
Value close to true value
6
Q
Repeatable measurement
A
Same person does same experiment and gets same results
7
Q
Reproducible experiment
A
Different person or equipment gets same results
8
Q
Resolution
A
Smallest change a tool can detect
9
Q
Uncertainty
A
How far a measurement is from the true value
10
Q
Absolute uncertainty
A
Uncertainty is given as a fixed quantity
11
Q
Fractional uncertainty
A
Uncertainty is given as a fraction of the measurement
12
Q
Percentage uncertainty
A
Uncertainty is given as a percentage of the measurement
13
Q
A
