density

Cards (31)

  • What is the aim of the investigation described?
    Investigating the density of objects
  • What does density describe?
    Mass of a substance per unit volume
  • In what units is density commonly expressed?
    Kilograms per cubic meter (kg/m³)
  • What is the process to determine density in this practical?
    Measure mass and volume, then calculate density
  • What are the variables in the density investigation?
    • Independent variable: Material being measured
    • Dependent variable: Density of the material
    • Control variable: Temperature
  • What is the independent variable in the investigation?
    Material being measured
  • What is the dependent variable in the investigation?
    Density of the material
  • What is the control variable in the investigation?
    Temperature
  • Who is demonstrating the GCSE required practical on density?
    1. Reese
  • What types of objects will be measured for density?
    Regular objects, irregular objects, and liquids
  • How is density defined?
    Density is how heavy a material is
  • What is the formula to calculate density?
    Density = mass / volume
  • In what units is mass measured for this practical?
    Grams
  • In what units is volume measured for this practical?
    Centimeters cubed
  • What is the unit for density in this practical?
    Grams per centimeter cubed
  • What is the mass of the brass block measured in the practical?
    180.0 grams
  • How do you calculate the volume of a cuboid?
    Multiply height, width, and length
  • What is the volume of the brass block calculated in the practical?
    20 centimeters cubed
  • What is the density of the brass block?
    9 grams per centimeter cubed
  • What is a vernier caliper used for?
    To measure dimensions with high precision
  • What is the final width of the aluminium cube measured with the vernier caliper?
    1.89 centimeters
  • What principle does the Eureka can demonstrate?
    The volume of water displaced equals the object's volume
  • How do you fill the Eureka can for the experiment?
    Fill until it drips from the nozzle
  • What is the mass of the object used in the displacement method?
    1 kilogram or 1000 grams
  • What is the volume of water displaced by the mass?
    130 centimeters cubed
  • What is the density calculated from the displaced water volume?
    7.7 grams per centimeter cubed
  • How is the density of a liquid measured?
    Using a measuring cylinder and balance
  • What is the density of pure water measured in the practical?
    1.0 grams per centimeter cubed
  • What is the density of the sugar solution measured in the practical?
    1.1 grams per centimeter cubed
  • How much sugar is dissolved per centimeter cubed in the sugar solution?
    0.1 grams of sugar
  • How many grams of sugar are in one decimeter cubed of solution?
    100 grams of sugar