Sig Fig Sleuths
How many significant figures are in 82.5 g, and what rule(s) apply?
Answer: 3 sig figs, Rule #1
67.382 (3)
Answer: 67.4
Calculate using the correct number of digits:
16.38 + 4.7
21.08
Answer: 21.1
What term describes how close a measurement is to the accepted value?
Answer: Accuracy
An experimental value is 24.0 g and the accepted value is 25.0 g.
What is the percent error?
Answer: 4.0%
How many significant figures are in 0.003040 L?
Answer: 4
0.006784 (1)
Answer: 0.007
Calculate using the correct number of digits:
72.45 − 8.3
64.15
Answer: 64.2
What term describes how close repeated measurements are to one another?
Answer: Precision
An experimental value is 47.5 mL and the accepted value is 50.0 mL.
What is the percent error?
Answer: 5.0%
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943,721 (4)
Answer: 943,700
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An experimental value is 103.0 g and the accepted value is 100.0 g.
What is the percent error?
Answer: 3.0%
How many significant figures are in 0.00050600 kg?
Answer: 5
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Calculate using the correct number of digits:
46.2 ÷ 3.5
13.2
Answer: 13
The accepted value is 65.0 g.
A student gets:
52.4 g, 52.5 g, 52.4 g
Are the measurements accurate, precise, both, or neither?
Answer: Precise ONLY
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How many significant figures are in 4,070.00 g?
Answer: 6
0.00087965 (3)
Answer: 0.000880
Calculate using the correct number of digits:
(7.25)(2.6) ÷ 1.40
13.4642857143
Answer: 13
The accepted value is 100.0 g.
A student gets:
96.2 g, 103.8 g, 99.5 g
Are the measurements accurate, precise, both, or neither?
Answer: Accurate ONLY
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