This document discusses choosing building materials and conducting a practical experiment to determine the density of ball bearings. Students will use micrometers and mass balances to measure the volume and mass of ball bearings, plot these on a graph with volume on the x-axis and mass on the y-axis, find the line of best fit, and calculate the gradient to determine the density. Key properties to consider for building materials include density, mass, and volume.
8. You are going to conduct a practical
Using the micrometers and mass balances
available, you will:
• Determine the volume and mass of the ball
bearings
• Plot these results onto a scatter graph
• Find the line of best fit
• Work out a gradient
9. Plotting the graph
• Mass on y-axis
• Volume on x-axis
• Fill as much of the paper as possible
• I am looking for neatness and accuracy
• Don’t overstate your precision when taking
readings!