Physics: Measurement and Density
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Questions and Answers

What is the primary reason for avoiding parallax error when using a measuring cylinder?

  • To prevent damage to the measuring cylinder
  • To increase the precision of the measurement
  • To avoid incorrect readings due to angle of observation (correct)
  • To ensure accuracy in measuring the volume of a solid

    • What is the conversion factor to convert g/cm³ to kg/m³?

  • 10
  • 100
  • 0.01
  • 1000 (correct)

    • What type of balance is typically used to measure mass?

  • Electronic balance (correct)
  • Beam balance
  • Physical balance
  • Spring balance

    • What is the SI unit of volume?

    <p>cubic meter (m³)</p> Signup and view all the answers

    What is the definition of density?

    <p>Mass per unit volume</p> Signup and view all the answers

    What is the purpose of using the displacement method to measure the volume of an irregular solid?

    <p>To measure the volume of the solid</p> Signup and view all the answers

    What is the physical quantity that is typically measured using a thermometer?

    <p>Temperature</p> Signup and view all the answers

    A beam balance is used to measure which of the following physical quantities?

    <p>Mass</p> Signup and view all the answers

    What is the unit of measurement for the physical quantity of area?

    <p>Meter squared (m²)</p> Signup and view all the answers

    Which of the following physical quantities can be measured directly using a ruler?

    <p>Length</p> Signup and view all the answers

    A pediatrician would measure which two physical quantities to monitor the growth of a baby?

    <p>Length and mass</p> Signup and view all the answers

    What is the unit of measurement for the physical quantity of volume?

    <p>Cubic meter (m³)</p> Signup and view all the answers

    What is the unit of measurement for the volume of a substance in the International System of Units?

    <p>cubic metre, m3</p> Signup and view all the answers

    What is the shape of an object that can have its volume calculated using well-known formulae?

    <p>Regular shape</p> Signup and view all the answers

    What is the name of the scientist who stated that measurement is essential in science?

    <p>Lord Kelvin</p> Signup and view all the answers

    What is the unit of measurement that honours Lord Kelvin's contribution to science?

    <p>Kelvin</p> Signup and view all the answers

    What is the purpose of measuring the volume of a substance?

    <p>To find the amount of space it occupies</p> Signup and view all the answers

    What is an example of a regular object?

    <p>Cuboid</p> Signup and view all the answers

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