(Science) Accuracy and Precision

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(Science) Accuracy and Precision

  1. 2. is how close the measurements are to the true value.
  2. 3. <ul><li>is how successive measurements agree with each other </li></ul>
  3. 6. <ul><li>% error= </li></ul><ul><li>/error/ = </li></ul>Accepted value experimental value −
  4. 7. <ul><li>1. Different students in a class was asked to give their estimated volume of a liquid in a beaker. Student 1 give her estimate as 200 mL and 215 mL,190 mL, 195 mL and 230 mL for students 2,3,4, and 5, respectively . When the teacher poured the liquid into a graduated cylinder, she measured the volume as 208 mL. What is the percentage error of the estimated volumes from the beaker, taking the graduated cylinder measurement as the accepted value? </li></ul>
  5. 8. <ul><li>True Value = 1.20 g/cm 3 </li></ul>Trials Lyla Geneve Joacquin 1 0.98 g/cm 3 1.53 g/cm 3 1.25 g/cm 3 2 1.23 g/cm 3 2.00 g/cm 3 2.96 g/cm 3 3 1.02 g/cm 3 1.18 g/cm 3 2.65 g/cm 3 4 1.12 g/cm 3 1.92 g/cm 3 1.89 g/cm 3 5 0.83 g/cm 3 1.65 g/cm 3 2.76 g/cm 3
  6. 9. <ul><li>Describe the accuracy and precision of the given data. </li></ul><ul><li>Among the students , who committed the least error? Explain your answer </li></ul>
  7. 10. <ul><li>Thank you for listening! </li></ul><ul><li>Have a nice Day! </li></ul>

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