Density

• Density


  A measure of how much mass a substance has per unit of its volume
• Density formula


  Density = Mass / Volume
• Density is normally measured in kilos per meter cubed in physics
• Density of solids


  • Aluminium: 2.71 grams per centimeter cubed
  • Aluminium: 2710 kilos per meter cubed
• Converting density units


  1 gram per centimeter cubed = 1000 kilos per meter cubed
• Density of liquids and solids

  • Aluminium: 2710 kilos per meter cubed
• Calculating volume of a solid given mass and density

  Volume = Mass / Density
• Measuring density of solids

  • Regular shape: Calculate volume by measuring dimensions
  • Irregular shape: Use Eureka can and measuring cylinder
• Measuring density of liquids

  • Place empty measuring cylinder on balance, zero, add liquid, measure mass, divide by volume
• Larger volume measurements improve density accuracy by minimizing measurement uncertainty
• Taking multiple measurements helps identify anomalies and calculate a mean