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Measurement, STD1 M1 2020 HSC 3 MC

What is 0.002073 expressed in standard form with two significant figures?

  1. `2.07 xx 10^(-2)`
  2. `2.1 xx 10^(-2)`
  3. `2.07 xx 10^(-3)`
  4. `2.1 xx 10^(-3)`
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`B`

Show Worked Solution

♦♦♦ Mean mark 12%.
`0.002073` `= 2.073 xx 10^(-3)`  
  `=2.1 xx 10^(-3)\ \ \ text{(to 2 sig fig)}`  

 
`=> B`

Filed Under: Identify and Convert Between Units (Std1-2027), Units and Measurement Error (Std 1) Tagged With: Band 6, smc-1120-20-Scientific Notation, smc-1120-30-Significant Figures, smc-6303-50-smc-6519-50-Significant Figures, smc-6519-40-Scientific Notation

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