Physics (AS & A Level) · Oct / Nov 2017 · Paper 13 · Question 5

Four possible sources of error in a series of measurements are listed. 1 an analogue meter whose scale is read from different angles 2 a meter which always measures 5% too high 3 a meter with a needle that is not frictionless, so the needle sometimes sticks slightly 4 a meter with a zero error Which errors are random and which are systematic?

1. Arandom error: 1 and 2; systematic error: 3 and 4
2. Brandom error: 1 and 3; systematic error: 2 and 4
3. Crandom error: 2 and 4; systematic error: 1 and 3
4. Drandom error: 3 and 4; systematic error: 1 and 2

As printed in the paper