1. Lesson 1

1.8. Explore 4

Mathematics 30-3 Module 6

Module 6: Measurement

 

To find the precision of the measurements in Self-Check 2, you had to assume the measurements you were given were the most accurate you could obtain using that particular measuring instrument. In Self-Check 3 you will be able to determine the accuracy by observing the actual measurement tool.

 

Self-Check 3

 

State the precision of each of the following measurement tools.

  1. a tape measure in inches

    This is a photograph of a yellow tape measure marked in inches with the smallest division as one-eighth.
    iStockphoto/Thinkstock

    Answer
  2. a speedometer in km/h

    Photograph of a speedometer with the smallest division of 5 kilometres per hour.
    Hemera/Thinkstock

    Answer
  3. a tape measure in inches and in centimetres

    This is a photograph of a metal tape measure showing imperial measure on the top side with a precision of one-thirtysecond, and metric on the bottom with a precision of 0.1 centimetres.
    iStockphoto/Thinkstock

    Answer