Study

Measurement and Density

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  • Define independent variable.
    factor that the scientist is changing
  • What tool is used to measure the volume of a liquid?
    graduated cylinder, beaker
  • What unit is used to measure volume of a liquid?
    L
  • Define dependent variable.
    factor being measured
  • Name the SI unit prefixes in order from largest to smallest?
    kilo, hecto, deca, base, deci, centi, mili, - - micro, - - nano
  • Why is it important to use SI units?
    standard for accurately communicating data
  • Calculate the density of a 15 g object that has a volume of 24 mL?
    SHOW WORK
  • What is the factor in an experiment that does not change?
    constant
  • What is the SI unit for temperature?
    Kelvin (K)
  • How is density calculated?
    D = M / V
  • What is volume?
    space an object occupies
  • What tool is used to measure the volume of a solid?
    Ruler
  • Explain how to convert 5 kg to mg.
    Start at the prefix k and count # of jumps until you get to m. Move the decimal point the same number of spaces and fill in extra spots with 0. Label answer.
  • How do you determine the volume of an irregular solid? Describe the steps.
    water displacement
  • What is the first step of the scientific method?
    Problem/ question
  • What is mass?
    amount of matter in object
  • What is the tool used to measure mass called?
    balance
  • What unit is used to measure mass?
    g
  • Explain how to use the density triangle to determine equations.
    Cover up the letter for the variable you are trying to find. The remaining letters provide an equation for solving. Divide stacked #s and multiply #s together.
  • After a hypothesis is stated, what step of the scientific method comes next?
    experiment
  • Explain density.
    Density is how compact something is, or the amount of mass something has within a given volume.