Approximation and Errors Ex.1B_1

Approximation and Errors Ex.1B_1 - 3 June tells her...

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Chapter 1.2 Approximation and Errors in Measurement Let’s Do Some Exercises! 1. Complete the table below. (Give the answers correct to 3 significant figures if necessary.) Measured value Maximum error Relative error Percentage error 26 o C (corr. to the nearest 1 o C) \$42 000 (corr. to the nearest \$100) 53.5 kg (corr. to the nearest 0.1kg) 1.63 m (corr. to 3 significant figures) 2. In a secondary school of 1180 students, 45% of the students are girls. (a) Find the approximate number of boys in this school correct to 2 significant figures. (b) Find the maximum error of the boy. (c) Find the relative error of the boy.

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Unformatted text preview: 3. June tells her classmate Peter that the school clock is very accurate. The percentage error of the time measured is only 0.2%. Peter tells June in return that the error of his watch is only 1s per day. (a) (i) What kind of error is Peter talking about, is it absolute error or relative error? (ii) Find the percentage error of Peter’s watch in measuring time.(Give the answer correct to 3 significant figures) (b) Comparing June’s school clock with Peter’s watch, which one is more accurate....
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Approximation and Errors Ex.1B_1 - 3 June tells her...

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