Maths skills Flashcards
1
Q
How to work out % error?
A
maximum error / measured value recorded x 100
2
Q
What is the maximum error of a ruler?
A
The smallest unit is 1mm so the ruler has a maximum error of 0.5mm. However, because there are possible errors at both end of the line, the maximum erorr is 2x0.5mm = 1mm
3
Q
How to work out actual object size?
A
Image size / Magnification
