Tools practical: Density of plasticine
In this practical the mass and diameter of different balls of Plasticine will be measured in order to verify that the mass of a sphere is proportional to the cube of its diameter. This is a simple experiment but introduces the concepts of uncertainties, data processing and graphing. Take a piece of Plasticine and roll it into a ball. Try measuring its diameter with a ruler and make a note of it. Turn the ball around...