CAPE Physics Unit 1 · 2005 · Paper 2 · Question 1(a)

In a terminal velocity experiment, small metal spheres fall at constant velocity in thick engine oil. Data on radius (r) and time (t) over a distance of 80.0 cm were collected. The terminal velocity (v) is suggested to be related to the radius (r) by the formula v = k r^n, where k and n are constants.

Complete Table 1 and plot a suitable graph on the grid on page 4 to enable you to find the value of n. (Note that it is NOT necessary to convert the units to metres.)

This question uses a figure or table from the paper — you'll see it when you practise.