Significant Figures Quiz
Significant Figures Quiz
How many significant figures are in each of the following numbers? (7 pts each)
1) 5.40 ____ 2) 210 ____ 3) 801.5 ____
5) 101.0100 ____ 6) 0.00120 ____ 7) 0.0102 ____
4) 1,000 ____
8) 2,370.0 ____
9) Why are significant figures important when collecting data in the laboratory? (5 pts)
10) Using two different instruments, I measured the length of my foot to be 27 centimeters and 27.00 centimeters. Explain the difference between these two measurements. (5 pts)
11) What is the volume of each graduated cylinder if the major markings indicate milliliters? (6pts)
A)
B)
C)
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A
B
C
? 2002 Cavalcade Publishing ? All Rights Reserved
(7 pts each) 12) Solve: 1.02 cm + 1.3 cm = ____ 13) Solve: 0.543 L ? 0.2 L = ____ 14) Solve: 2.0 m * 0.213 m = ____ 15) Solve: 3.20 kg / 1.6 kg = ____
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? 2002 Cavalcade Publishing ? All Rights Reserved
Significant Figures Worksheet - Answers
How many significant figures are in each of the following numbers?
1) 5.40 3 2) 210 2
3) 801.5
4
5)
101.0100 7
6) 0.00120
3
7) 0.0102
3
4) 1,000
1
8) 2,370.0
5
9) Why are significant figures important when collecting data in the laboratory? Significant figures indicate the precision of the measured value to anybody who looks at the data. Indicates the precision of the instrument used to take the measurement.
10) Using two different instruments, I measured the length of my foot to be 27 centimeters and 27.00 centimeters. Explain the difference between these two measurements. Again, though the numbers plug into the calculator in the same way, they imply different precisions. 27.00 is more precise than 27.
11) What is the volume of each graduated cylinder? A) 5.71mL Acceptable range is 5.71mL to 5.72mL. B) 3.0 mL This is exact with no range allowed. C) 0.35 mL Acceptable range is 0.34mL to 0.35mL.
12) Solve: 1.02 cm + 1.3 cm = 2.3 cm
13) Solve: 0.543 L ? 0.2 L = 0.3 L 14) Solve: 2.0 m * 0.213 m = 0.43 m2 15) Solve: 3.20 kg / 1.6 kg = _2.0_______
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