WorksheetsHC 6.2e Significant figures graded review
Total questions: 21
Worksheet time: 15mins
Name
Class
Date
1.
How many significant figures does the following number have?
0.00345
0.00345
a)
6
b)
5
c)
3
d)
Ambiguous: 3,4,5, or 6
2.
How many significant figures does the following number have: 0.00204
a)
6
b)
4
c)
3
d)
2
3.
How many significant figures does the following number have?1.2500 x 103
a)
5
b)
3
c)
Ambiguous: 3 or 5
d)
7
4.
How many significant figures does the following number have: 100.00210
a)
7
b)
8
c)
10
d)
Ambiguous: 7 or 8
5.
Round 1289 to three significant figures
a)
1290
b)
130
c)
1300
d)
1.29x103
6.
What is 98.907 rounded to 1 significant figure?
a)
98.9
b)
90
c)
100
d)
1x102
7.
Solve and give your answer with the correct number of significant figures
(12.470)(271)
(12.470)(271)
a)
3366.9
b)
3.37x103
c)
3400
d)
3370
8.
Solve and give your answer with the correct number of significant figures
129.6/3
129.6/3
a)
43.0
b)
43
c)
4x101
d)
40
9.
Solve and give your answer with the correct number of significant figures
24.28 + 12.5
24.28 + 12.5
a)
3.687 x 101
b)
36.8
c)
37
d)
3.70x101
10.
Solve and give your answer with the correct number of significant figures
1421-34
1421-34
a)
1.39x103
b)
1387
c)
1390
d)
1400
11.
Round 1009 to three sig figs
a)
100
b)
101
c)
1010
d)
1000
12.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
13.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
14.
What is the measurement 1042 Liters rounded to 2 significant figures?
a)
1040 L
b)
1.1 x 103 L
c)
1.0 x 103 L
d)
1050 L
15.
Calculate 1.23 m x 0.89 m and give your answer with the appropriate number of significant figures.
a)
1.0 m2
b)
1.1 m2
c)
1.0947 m2
d)
1.09 m2
16.
Calculate 123000 m x 3234 m and give your answer with the appropriate number of significant figures.
a)
3.97 x 10-7 m2
b)
39800000 m2
c)
398 m2
d)
3.98 x 108 m2
17.
Calculate 923 g ÷ 20312 cm3 and give your answer with the appropriate number of significant figures.
a)
0.04 g/cm3
b)
0.045 g/cm3
c)
0.0454 g/cm3
d)
4 x 10-2 g/cm3
18.
Calculate 12.47 m ÷ 3.2 s and give your answer with the appropriate number of significant figures.
a)
4 m/s
b)
3.9 m/s
c)
3.90 m/s
d)
3.897 m/s
19.
Calculate 0.020 cm x 50 cm x 11.1 cm and give your answer with the appropriate number of significant figures.
a)
10 cm3
b)
11.1 cm3
c)
11 cm3
d)
11. cm3
20.
What is the answer expressed with the correct significant digits for:
7.77 g÷2.3 cm3a)
3.37826 g/cm3
b)
3.38 g/cm3
c)
3.4 g/cm3
d)
3.378 g/cm3
21.
What is the answer expressed with the correct significant digits for: 3.4 cm x 2.32 cm?
a)
7.888 cm2
b)
7.89 cm2
c)
7.9 cm2
d)
8 cm2
100 %
