1.2 Uncertainties Flashcards
1
Q
4 types of errors
A
- random error
- parallax error
- systematic error
- zero error
2
Q
The margin of error
A
The max difference between the measured value and the true value
3
Q
what are the 2 types of uncertainties
A
- absolute
- percentage
4
Q
absolute uncertainty
A
The total uncertainty for a measurement, expressed in the same units are the measurement
5
Q
percentage uncertainty
A
- the uncertainty as a percentage of the measurement
6
Q
What affects does measuring larger values have on percentage uncertainty
A
reduces percentage uncertainty
7
Q
how to find uncertainty when values have been added or subtracted
A
add the absolute uncertainty
8
Q
how to find the uncertainty when values have been multiplied or divided
A
add the percentage uncertainties
9
Q
equation for % uncertainty
A
absolute uncertainty / value
multiplies by 100
