Precision, Accuracy, Metric, And Data Collection Quiz

10 Questions | Total Attempts: 664

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Precision, Accuracy, Metric, And Data Collection Quiz - Quiz

Are you ready to take the challenge of passing this precision, accuracy, metric, and data collection quiz with a score of more than 70? Accuracy means how close a measurement is to the correct or accepted value. Precision, on the other hand, refers to how close to each other are the measurements of the same item. So, here are some questions for your practice. Let's see if you are able to answer them all or not. All the best to you!


Questions and Answers
  • 1. 
    Analyze the table and determine which STUDENT (not trial) reported the most precise data.   Trial Student A Data (Mass in grams) Student B Data (Mass in grams) 1 4.43 4.43 2 4.45 4.47 3 4.44 4.50 4 4.43 4.53
    • A. 

      Student A

    • B. 

      Student B

    • C. 

      Both are the same

    • D. 

      None

  • 2. 
    Which of the following will allow the measurement of a liquid’s volume with the greatest precision? 
    • A. 

      50 mL cylinder graduated in 1 mL increments

    • B. 

      100 mL cylinder graduated in 0.5 mL increments

    • C. 

      100 mL cylinder graduated in 1 mL increments

    • D. 

      200 mL cylinder graduated in 5 mL increments

  • 3. 
    Which of the following data sets best represents precision if the accepted value is 3.0920?
    • A. 

      3.0920, 0.3098, 3.309

    • B. 

      3.0920, 5.0903, 6.390

    • C. 

      5.490, 5.420, 5.8379

    • D. 

      7.0939, 3.0920, 10.290

  • 4. 
    The chart shows the density of seawater samples collected from the Gulf of Mexico by four different groups.  Which group’s data are most precise?
    • A. 

      Group 1

    • B. 

      Group 2

    • C. 

      Group 3

    • D. 

      Group 4

  • 5. 
    A student performed an analysis of a sample for its calcium content and got the following results: 14.92%    14.91%   14.88%  14.91%   The actual amount of calcium in the sample is 14.90%.  What conclusions can you draw about the accuracy and precision of these results?  
    • A. 

      While precise, these results are not accurate.

    • B. 

      While accurate, these results are not accurate.

    • C. 

      These results are both accurate and precise.

    • D. 

      These results are neither accurate nor precise.

  • 6. 
    Which tool below is the most precise?  Trial Volume Shown by Graduated Cylinder Volume Shown by the Buret 1 25 mL 26.54 mL 2 25 mL 26.51 mL 3 25 mL 26.60 mL 4 25 mL 26.49 mL 5 25 mL 26.57 mL Average 25 mL 26.54 mL      
    • A. 

      Buret because it has the smallest increments.

    • B. 

      Graduated Cylinder because it is closest to the actual answer

    • C. 

      Graduated Cylinder because it rounds to a whole number

    • D. 

      Buret because it is closest to the actual answer.

  • 7. 
    A student observes a garden plot. Several plants shaded by a tree are not as large as those of the same species growing in the full sun. The student asks, “Why are the plants growing in the shade smaller than the plants growing in the sun?”  Which is the most reasonable hypothesis to explain the student’s observations?
    • A. 

      The tree removes water from the soil. The drier soil limits the growth of those plants growing near the tree.

    • B. 

      The tree removes minerals from the soil. The mineral-reduced soil limits the growth of those plants growing near the tree.

    • C. 

      The tree blocks sunlight, lowering the light level in the shaded area. This limits the growth of this plant species, which grows best in direct sunlight.

    • D. 

      None of these

  • 8. 
    A student needs to collect quantitative data about the pendulum lab. Which of the following is NOT considered quantitative data?
    • A. 

      Length of string

    • B. 

      Initial dropping height

    • C. 

      Period of the swing

    • D. 

      The material used to change mass

  • 9. 
    In the pendulum lab, it was important that we began by....
    • A. 

      Making a hypothesis

    • B. 

      Making observations

    • C. 

      Checking the precision of testing instruments

    • D. 

      Generating a testable question

  • 10. 
    In our pendulum lab, our hypotheses could have arisen from....
    • A. 

      Observations

    • B. 

      Prior knowledge

    • C. 

      Inferences

    • D. 

      All of the above

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