Why are multiple readings taken in an experiment?

Which example best represents a random error?

Uncertainty in a measurement is related to:

Which statement describes systematic error?

For an analogue instrument, the maximum uncertainty is commonly taken as:

The displacement can method is useful when a solid body:

Significant figures include:

To read the volume of water in a measuring cylinder correctly, the eye should be:

Which zero is significant?

A digital stopwatch can measure time more accurately because it may measure up to:

How many significant figures are in 2.40 mm?