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Worksheetssig figs, scientific notation, density and accuracy/precision
Total questions: 33
Worksheet time: 43mins
Name
Class
Date
1.
Solve. Round using SigFig math rules.
12.5-mL + 20.05-mL + 2.69-mL
12.5-mL + 20.05-mL + 2.69-mL
a)
35-mL
b)
35.2-mL
c)
35.24-mL
d)
35.240-mL
2.
Solve. Round using SigFig math rules.
98.7°C - 97.25°C
98.7°C - 97.25°C
a)
1°C
b)
1.4°C
c)
1.45°C
d)
1.450°C
3.
Calculate 5.50 cm + 5.50 cm and give your answer with the appropriate number of significant figures.
a)
11 cm
b)
11.0 cm
c)
11.00 cm
d)
11.000 cm
4.
How many sig figs are there?
5.00000008
5.00000008
a)
2
b)
6
c)
9
5.
What is the correct answer according to sig fig rules:
.005612 x .40145 =
a)
.0022
b)
.00225
c)
.002252
d)
.002253
6.
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
7.
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
8.
How many significant figures does 10.1 cm have?
a)
1
b)
2
c)
3
d)
4
9.
How many Significant Figures in the number below?
4.56 x 103
4.56 x 103
a)
5
b)
4
c)
6
d)
3
10.
Round 1047.78 to three sig figs
a)
104
b)
105
c)
1050
d)
1050.00
11.
Frank has an eraser. It has a mass of 4g, and a volume of 2cm3. What is its density?
a)
8 g/cm3
b)
2 g/cm3
c)
1/2 g/cm3
d)
24 g/cm3
12.
a)
Element
b)
Compound
c)
Mixture
13.
a)
Element
b)
Compound
c)
Mixture
14.
Solve and round accordingly.
25.0 x 17 = ?
25.0 x 17 = ?
a)
430
b)
425
c)
425.0
d)
430.0
15.
calculate the following to the correct number of sig figs.
32.451 - 21.5
32.451 - 21.5
a)
11.0
b)
10.951
c)
11
d)
10.95
16.
calculate the following to the correct number of sig figs.
0.00401 x 2.00 x 501
0.00401 x 2.00 x 501
a)
4.02
b)
4
c)
4.0
d)
4.0180
17.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
18.
Which of the following is correct scientific notation?
a)
20.35 x 104
b)
.2035 x 104
c)
2035 4
d)
2.035 x104
19.
Express the following in scientific notation:
.000457
.000457
a)
457 x 106
b)
457 x 10-6
c)
4.57 x104
d)
4.57 x 10-4
20.
How many sig figs are in 927.0020?
a)
4
b)
3
c)
6
d)
7
21.
Jared is practicing for a golf tournament. His normal driver distance is 250 yards. He hits three balls with his driver, and they travel a distance of 190 yards, 195 yards, and 187 yards. Which of the following is true?
a)
His drives are accurate but not precise.
b)
His drives are precise but not accurate.
c)
His drives are both accurate and precise.
d)
His drives are neither accurate nor precise.
22.
Which statement is true?
a)
Oil is the most dense substance.
b)
Corn syrup is less dense than water.
c)
Oil is less dense than water.
d)
Oil and corn syrup have the same density but different masses.
23.
What is the formula for calculating density?
a)
Mass ∗ Volume
b)
Volume ∗ Mass
c)
Mass ÷ Volume
d)
Volume ÷ Mass
24.
What is the volume of the rock? The water level is displaced from 20 mL to 23 mL with the rock.
a)
3 mL
b)
23 mL
c)
20 mL
d)
43 mL
25.
The amount of matter in an object is a measure of the object's ________________.
a)
volume
b)
density
c)
mass
d)
solubility
26.
What is this tool to get volume?
a)
triple beam balance
b)
ruler
c)
thermometer
d)
graduate cylinder
27.
Jack has a rock. The rock has a mass of 14g and a volume of 2cm3. What is the density of the rock?
a)
7 mL
b)
7 g/cm3
c)
28 g/cm3
d)
1/7 g/cm3
28.
Put the liquids in order from most dense to least dense?
a)
4, 3, 2, 1
b)
1, 2, 3, 4
c)
3, 4, 2, 1,
d)
4, 3, 1, 2
29.
Frank has a paper clip. It has a mass of 9g and a volume of 3cm3. What is its density?
a)
3 g/cm3
b)
1/3 g/cm3
c)
27 g/cm3
d)
39 g/cm3
30.
Which is the more precise measurement?
a)
4 mL
b)
4.3 mL
c)
4.30 mL
d)
4.300 mL
31.
How many sig figs are in 730?
a)
1
b)
2
c)
3
d)
4
32.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
33.
Describe the accuracy and precision of the image
a)
Accurate and Precise
b)
Accurate and not precise
c)
Not Accurate and Precise
d)
not accurate and not precise
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