C1.10 Limits of Accuracy – Practice Questions #
Question 1 #
A distance is measured as $8 \text{ m}$ to the nearest metre.
Find the upper and lower bounds of this distance.
Write your answer here, showing all steps…
Question 2 #
A number is $350$ to the nearest 10.
Write down the upper and lower bounds of this number.
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Question 3 #
A weight is recorded as $2.7 \text{ kg}$ to 1 decimal place.
Find the limits of accuracy for this weight.
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Question 4 #
A number is $4500$ to the nearest 100.
Find the upper and lower bounds of this number.
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Question 5 #
A time is measured as $15.83$ seconds to 2 decimal places.
Write down the upper and lower bounds of this time.
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Question 6 #
A number is $7200$ to 2 significant figures.
Find the limits of accuracy for this number.
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Question 7 #
A length is $0.056 \text{ m}$ to 3 significant figures.
Find the upper and lower bounds of this length.
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Question 8 #
A number is $0.0048$ to 2 significant figures.
Write down the upper and lower bounds of this number.
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Question 9 #
A mass is recorded as $12000 \text{ g}$ to 3 significant figures.
Find the limits of accuracy for this mass.
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Question 10 #
A temperature is $-4.5°\text{C}$ to 1 decimal place.
Find the upper and lower bounds of this temperature.
Write your answer here, showing all steps…
1. Identify the accuracy
2. Work out half of the accuracy
3. Find lower bound = Given number – Half-accuracy
4. Find upper bound = Given number + Half-accuracy
5. Write your final answer clearly
