Four students measure the mass of an object, each using a different scale. They record their results as follows: Which student used the most precise scale?
A.
D.
C.
B.
Which is colder -0 °C or -100 °C?
-0 °C.
None.
-100 °C.
Four students each made a series of measurements of the acceleration of free fall g (in ms-2). The table shows the results obtained. Which student obtained a set of results that could be described as accurate but not precise?
