NAME Elizabeth Izzo SECTION DATE EXPERIMENTAL LIMITATIONS PRELIMINARY QUESTIONS
ID: 532295 • Letter: N
Question
NAME Elizabeth Izzo SECTION DATE EXPERIMENTAL LIMITATIONS PRELIMINARY QUESTIONS 1. Distinguish between precision and accuracy. Accuracy desc oes the difference between the measu ment and the part actual value, while recision de cri oes the you see w hen Hou usore the same par repeated Twit n the s eme Nice 2. You are looking at a thermometer that has a mark for each degree. You are going to down a a write number corresponding to the temperature. How will you decide how many significant figures to use in the number? (ie. Will you report the temperature to the ones place, tenths, hundredths, other?) 3. An article in the newspaper says that a sports reporter used to estimate that the crowd in a football stadium was 25,466. This amuses you and you decide to write a short letter to the editor. What will you say? The bank reports your balance is about s2000. You decide to write a short letter to the president of the bank. What will you say?Explanation / Answer
Ans 1. Both precison and accuracy are important factors that determine how close the experimental value is to the actual value .
Accuracy refers to how close the experimental value is to the actual value , whereas precision refers to how reproducible these measurements or values are , even if they are far off from the accepted actual value .
So both of these factors are different but important considerations in an experimental result.
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