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Approximation and Errors

# Approximation and Errors - Approximation and Errors Form 2...

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Approximation and Errors Form 2 Section A Multiple Choice Questions 1. How many significant figures are there in 0.054 0? A. 2 B. 3 4 C. 5 2. Round off 24.647 1 to 3 significant figures. A. 24.647 24.6 B. 24.7 C. 25.0 3. If x lies between 1.236 and 1.244, then A. 1.2, corr. to 1 sig. fig. 1.24, corr. to 2 sig. fig. B. 1.24, corr. to 3 sig. fig. C. 1.240, corr. to 3 sig. fig. 4. The answer obtained by rounding off the number 456.654 correct to 3 significant figures is equivalent to rounding off the number correct to A. 3 decimal places 2 decimal places B. 1 decimal place C. the nearest integer 5. The body temperature of Tom is measured to be 37.2 o C, correct to the nearest 0.1 o C. His actual body temperature should not exceed A. 37.15 o C B. 37.2 o C 37.25 o C C. 37.3 o C 6. If the weight of a mobile phone is (90 ± 1) g, the relative error of this weight is B. C. D. 7. Which of the following measured values has a maximum error of 0.5 m? A. 62.5 m, corr. to 1 d.p.

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Approximation and Errors - Approximation and Errors Form 2...

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