Gr 11 Math Lit: Ch 2.3 Measuring and Estimating
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Questions and Answers

What is the purpose of using prefixes in standard units of measurement?

  • To make the units more accurate
  • To make the units more readable
  • To make the units smaller
  • To indicate the magnitude of the measurement (correct)
  • Which of the following is an example of measuring mass?

  • Using a scale to measure weight (correct)
  • Using a measuring jug to measure volume
  • Using a ruler to measure length
  • Using a thermometer to measure temperature
  • What is the purpose of using benchmarks in estimation?

  • To make estimates more precise
  • To make estimates more complicated
  • To make estimates more accurate (correct)
  • To make estimates more rough
  • What is the formula for calculating the area of a rectangle?

    <p>A = l × w</p> Signup and view all the answers

    What is the purpose of scaling in maps and diagrams?

    <p>To represent real-life objects or distances accurately</p> Signup and view all the answers

    What is the unit of measurement for time?

    <p>All of the above</p> Signup and view all the answers

    What is the purpose of rounding numbers in estimation?

    <p>To make the numbers more approximate</p> Signup and view all the answers

    What is the purpose of using rates and proportions in measurement?

    <p>To solve problems involving speed, density, and other rate-based measures</p> Signup and view all the answers

    When measuring a quantity, what is the primary purpose of using significant figures?

    <p>To reflect the precision of the data</p> Signup and view all the answers

    Which of the following is an example of human error in measurement?

    <p>Misreading the scale on a thermometer</p> Signup and view all the answers

    When estimating a value, what is the primary purpose of using benchmarks?

    <p>To use known reference points to approximate the value</p> Signup and view all the answers

    What is the correct order of steps in measuring and estimating a quantity?

    <p>Identify the quantity, choose the tool, perform the measurement, record the value, and analyse the results</p> Signup and view all the answers

    Why is it necessary to convert units in measurement?

    <p>To perform calculations in different units</p> Signup and view all the answers

    What is the primary purpose of analysing and applying the results in measurement and estimation?

    <p>To solve problems or make decisions in real-world contexts</p> Signup and view all the answers

    What is the main reason for identifying the quantity to be measured or estimated?

    <p>To select the appropriate tool or method</p> Signup and view all the answers

    What is the primary purpose of performing conversions of units in measurement?

    <p>To express the measurement in a more suitable unit</p> Signup and view all the answers

    What is the primary advantage of using significant figures in measurement and calculation?

    <p>It reflects the precision of the data</p> Signup and view all the answers

    What is the main purpose of analysing and applying the results in measurement and estimation?

    <p>To solve problems or make decisions in real-world contexts</p> Signup and view all the answers

    What is the primary purpose of accounting for potential errors in measurement?

    <p>To increase the reliability of the results</p> Signup and view all the answers

    What is the primary purpose of using benchmarks in estimation?

    <p>To use known reference points for estimation</p> Signup and view all the answers

    What is the main advantage of using standard units of measurement?

    <p>To ensure accuracy and consistency in measurements</p> Signup and view all the answers

    Which of the following is an example of converting between different systems of measurement?

    <p>Converting from inches to centimeters</p> Signup and view all the answers

    What is the purpose of using thermometers in measurement?

    <p>To measure temperature</p> Signup and view all the answers

    When estimating a quantity, what is the primary purpose of rounding numbers?

    <p>To make estimates more approximate</p> Signup and view all the answers

    What is the purpose of using formulas to calculate the perimeter, area, and volume of shapes?

    <p>To make calculations more accurate</p> Signup and view all the answers

    What is the purpose of using rates and proportions in measurement?

    <p>To solve problems involving speed and density</p> Signup and view all the answers

    What is the purpose of using scaling in maps and diagrams?

    <p>To represent real-life objects or distances</p> Signup and view all the answers

    What is the main advantage of using appropriate tools to measure length, area, and volume?

    <p>To make measurements more accurate and precise</p> Signup and view all the answers

    When performing a measurement, what is the primary reason for using a tool that is appropriate for the task?

    <p>To reduce the possibility of human error</p> Signup and view all the answers

    What is the main advantage of using significant figures in measurement and calculation?

    <p>They reflect the precision of the data and reduce the possibility of human error</p> Signup and view all the answers

    When is it necessary to convert units in measurement?

    <p>When the measurement is in a different unit than required</p> Signup and view all the answers

    What is the primary purpose of accounting for potential errors in measurement?

    <p>To reduce the possibility of human error and instrument error</p> Signup and view all the answers

    What is the main purpose of analysing and applying the results in measurement and estimation?

    <p>To solve problems or make decisions in real-world contexts</p> Signup and view all the answers

    What is the primary purpose of identifying the quantity to be measured or estimated?

    <p>To select the appropriate tool or method</p> Signup and view all the answers

    What is the primary purpose of recognizing and using standard units of measurement?

    <p>To facilitate communication and comparison of measurements</p> Signup and view all the answers

    Which of the following is an example of applying measurement in a real-life context?

    <p>Using a map to estimate the distance between two cities</p> Signup and view all the answers

    What is the primary purpose of making reasonable estimates of quantities when exact measurement is not possible?

    <p>To make informed decisions or judgments in real-life situations</p> Signup and view all the answers

    Which of the following is an example of using conversion of units in measurement?

    <p>Converting inches to centimeters</p> Signup and view all the answers

    What is the primary purpose of using thermometers to measure temperature?

    <p>To measure the temperature of an object or environment</p> Signup and view all the answers

    Which of the following is an example of applying scaling in measurement?

    <p>Creating a map to represent a real-life area</p> Signup and view all the answers

    What is the primary purpose of using measuring jugs to measure volume?

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

    Which of the following is an example of applying rates and proportions in measurement?

    <p>Solving a problem involving speed and distance</p> Signup and view all the answers

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