Measuring length and volume
rulers and can be used to measure small distance of few centimeters and also millimeters
when measuring larger distances , a tape measure is used or even when measuring larger distance - a trundle wheel is used
trundle wheel is used to measure large distance
Measuring cylinders can be used to measure the volume of liquids
measuring cylinder can be used to measure volume of irregular shape
Measuring diameter of a one ball bearing
the diagram shows 4 identical balls placed between two blocks on a ruler .
We are going to calculate diameter of a one ball
total distance between the block is 12 - 4 = 8 cm
Total balls = 4 so diameter of 1 ball = 8 divided by 4 = 2cm
diameter = 2cm