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significant figure

Total questions: 105

Worksheet time: 1hrs 8mins

Name
Class
Date
1.
How many significant figures does the following number have: 0.002040
a)
6
b)
4
c)
3
d)
2
2.
How many significant figures does the following number have: 0.998005
a)
9
b)
10
c)
6
d)
5
3.
How many significant figures does the following number have: 100.00210
a)
7
b)
5
c)
10
d)
8
4.
Determine the number of Significant Figures in 10-L.
a)
4
b)
3
c)
2
d)
1
5.
How many Significant Figures in the number below?
4.56 x 103
a)
5
b)
4
c)
6
d)
3
6.
How many significant figures does the following number have: 1740200
a)
2
b)
1
c)
3
d)
5
7.
Determine the number of Significant Figures in 13410000-m.
a)
4
b)
3
c)
2
d)
1
8.

How many significant figures are there in the image?

a)

3

b)

1

c)

0

d)

2

9.

How many significant figures are there in the image?

a)

3

b)

6

c)

9

d)

0

10.

How many significant figures? 0.0

a)

0

b)

1

c)

2

11.

What are significant figures?

a)

a way of writing very large or very small numbers

b)

the meaningful figures in our measurements

c)

how close a measurement is to the correct value for that measurement

d)

to how close the agreement is between repeated measurements

12.
Which of the following numbers has three significant figures?
a)
1014 miles
b)
101 feet
c)
1000 yards
d)
all of the choices
13.
Calculate 5.50 cm + 5.5 cm and give your answer with the correct number of significant figures.
a)
11 cm
b)
11.0 cm
c)
11.00 cm
d)
11.000 cm
14.

0.006 has ________ significant figures (sigfigs)

a)

4

b)

3

c)

2

d)

1

15.
Which of the following measurements contains two significant figures?
a)
0.00400 L
b)
0.00404 L
c)
0.00044 L
d)
0.00440 L
16.
Express 23400 in proper scientific notation. 
a)
2.34 x 104
b)
2.3 x 103
c)
2.30 x 105
d)
2.34 x 103
17.
How many sig figs are there?
100.00
a)
1
b)
3
c)
4
d)
5
18.
Round 0.0005630 to 2 significant figures.
a)
0.000563
b)
0.00056
c)
56
d)
0.56
19.
Round 536.2450 to 4 significant figures.
a)
536.2
b)
536.2450
c)
536.2000
20.
Round 0.005263 to 1 significant figure.
a)
0.005000
b)
0.005
c)
5
21.
Round 4927 to 2 significant figures.
a)
49
b)
4900.00
c)
4900
d)
4900.
22.
Round 2.060 to 2 significant figures.
a)
2.0
b)
2.06
c)
2.1
d)
206
23.
Round 1,723,659 to 4 significant figures.
a)
1,723
b)
1,723,000
c)
1,724,000
d)
1,723,659.0000
24.
Round 0.0002568700 to 3 significant figures.
a)
0.000256
b)
0.000257
c)
0.0002570000
d)
0.0002560000
25.
Round 2.0495 to 4 significant figures.
a)
2.049
b)
2.040
c)
2.050
d)
2.0495
26.
Round 4587.26 to 2 significant figures.
a)
4600
b)
45
c)
46
d)
4500
27.
Round 123856 to 4 significant figures.
a)
1238
b)
123800
c)
1239
d)
123900
28.
Round 0.00258954 to 4 significant figures.
a)
0.0025
b)
0.002589
c)
0.002580
d)
0.002590
29.
Round 1235 to 2 significant figures.
a)
12
b)
1200
c)
1200.
d)
1200.00
30.
Round 52689 to 3 significant figures.
a)
526
b)
527
c)
52600
d)
52700
31.
Round 7256.320004 to 8 significant figures.
a)
7256.3200
b)
7256.0000
c)
72563200
d)
72560000
32.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
33.

This bullseye demonstrates...

a)

High Accuracy & High Precision

b)

High Accuracy & Low Precision

c)

Low Accuracy & High Precision

d)

Low Accuracy & Low Precision

34.

How many significant figures are there in 10 liters?

a)

1

b)

2

c)

3

d)

4

35.

How many significant figures are there in 0.0054 grams?

a)

1

b)

2

c)

3

d)

4

36.

How many significant figures are there in 0.020 meters?

a)

1

b)

2

c)

3

d)

4

37.

How many significant figures are there in 10.020 moles?

a)

2

b)

3

c)

4

d)

5

38.

How many significant figures are there in 125 meters?

a)

1

b)

2

c)

3

d)

4

39.

How many significant figures are there in 1008 grams?

a)

1

b)

2

c)

3

d)

4

40.
How many significant figures: 153.0 mL
a)
1
b)
2
c)
3
d)
4
41.
How many significant figures: 0.012 km
a)
1
b)
2
c)
3
d)
4
42.
How many significant figures: 0.001 g
a)
4
b)
3
c)
2
d)
1
43.
How many significant figures: 4.20 cm
a)
1
b)
2
c)
3
d)
4
44.
How many sig figs are there?
0.000008
a)
1
b)
2
c)
6
d)
7
45.
How many sig figs are there?
100000000
a)
1
b)
9
c)
10
46.

1.61 grams + 100 grams = ?

a)

101.61 g

b)

101 g

c)

1.61 x 102 g

d)

100 g

47.
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
48.
Calculate 12.34 + 1.234 + 0.1234
a)
13.6974
b)
13.697
c)
13.70
d)
13.7
49.

Calculate and report 2.4 x 550 to the correct number of significant figures?

a)

1320

b)

1300

c)

1000

d)

1320.0

50.
Round 0.010229 to four sig figs
a)
1022
b)
1023
c)
0.01023
d)
0.01022
51.

Which is the more precise measurement?

a)

4 mL

b)

4.3 mL

c)

4.30 mL

d)

4.300 mL

52.

How close a measurement is to the true value is called..

a)

Accuracy

b)

Precision

c)

Significant

d)

Estimate

53.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
54.
When a measurement is repeatable and consistent it is said to have...
a)
High precision
b)
Low precision
c)
High accuracy
d)
Low accuracy
55.
A set of data are all close to each other, but they are not close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
56.
A set of data are not close to each other, but the average of the data is very close to the actual value.  This set of data can be described as...
a)
accurate
b)
precise
c)
both precise and accurate
57.
It is a measure of how close measurements come to each other when they are made in the same way
a)
Accuracy
b)
Precision
c)
Error
d)
Extrapolation
58.

Measurements: 12.3, 14.5, 10.1, 16.9

True Value: 25.0

These measurements are…

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

59.

Measurements: 24.9, 25.2, 25.1, 24.8

True Value: 25.0

These measurements are…

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

60.

Does this image show results that are accurate and/or precise?

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

61.

Does this image show results that are accurate and/or precise?

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

62.

Does this image show results that are accurate and/or precise?

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

63.

Does this image show results that are accurate and/or precise?

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

64.

Does this image show results that are accurate and/or precise?

a)

Accurate, but not precise

b)

Precise, but not accurate

c)

Both precise and accurate

d)

Neither precise nor accurate

65.

Precision is a measure of

a)

how exact the measurement is based on its significant figures.

b)

How close the measurement is to the true value.

c)

Is based on the significant figures of the true value.

66.

Suppose a thermometer has marks at every one degree increment and the mercury level on the thermometer is exactly between the 25 and 26 degree Celsius marks. We should properly report the temperature measurement as:

a)

25°C

b)

26°C

c)

25.5°C

d)

25.50°C

e)

25.55°C

67.

In the number 48.93, which digit is estimated?

a)

4

b)

8

c)

9

d)

3

e)

none of the above

68.

There are exactly 2.54 centimeters in 1 inch. When using this conversion factor, how many significant figures are you limited to?

a)

1

b)

3

c)

ambiguous

d)

depends on if you are using it in multiplication/division or addition/subtraction

e)

infinite number of significant figures

69.

The correct number of significant figures in the number 1.250100 is:

a)

5

b)

7

c)

4

d)

ambiguous

e)

none of the above

70.

The correct number of significant figures in the number 0.027090 is:

a)

7

b)

6

c)

5

d)

ambiguous

e)

none of the above

71.

Which of the following statements is NOT part of the rules for determining significant figures?

a)

Non-zero digits at the end of a number are not significant.

b)

Zeroes between two numbers are significant.

c)

Zeroes to the left of the first non-zero number are not significant.

d)

Trailing zeroes at the end of a number, but before an implied decimal point are ambiguous.

e)

All of the above statements are part of the rules.

72.

When the value 4.449 is rounded to two significant figures, the number should be reported as:

a)

4.4

b)

4.5

c)

4.44

d)

4.45

e)

none of the above

73.

Determine the answer for the equation below with correct number of significant figures:

1.2 × 1.79 =

a)

2.148

b)

2.15

c)

2.1

d)

2.2

e)

none of the above

74.

Determine the answer to the following equation with correct number of significant figures:

(17.103 + 2.03) × 1.02521 =

a)

19.6153

b)

19.62

c)

19.6

d)

20

e)

none of the above

75.

Determine the answer to the following equation with correct number of significant figures:

13.96 - 4.9102 + 71.5 =

a)

80.5498

b)

81

c)

80.5

d)

80.55

e)

none of the above

76.

The following number has been rounded to 1 significant figure.


800


Find the upper bound...

a)

850

b)

750

c)

849

d)

749

77.

The following number has been rounded to 1 significant figure.


800


Find the lower bound...

a)

850

b)

750

c)

849

d)

749

78.

The following number has been rounded to 1 significant figure.


8000


Find the upper bound...

a)

8500

b)

7500

c)

8490

d)

7490

79.

The following number has been rounded to 1 significant figure.


8000


Find the lower bound...

a)

8500

b)

7500

c)

8490

d)

7490

80.

The following number has been rounded to 1 significant figure.


0.8


Find the upper bound...

a)

0.85

b)

0.75

c)

0.849

d)

0.749

81.

The following number has been rounded to 1 significant figure.


0.8


Find the lower bound...

a)

0.85

b)

0.75

c)

0.849

d)

0.749

82.

The following number has been rounded to 1 significant figure.


0.08


Find the upper bound...

a)

0.085

b)

0.075

c)

0.0849

d)

0.0749

83.

The following number has been rounded to 1 significant figure.


0.08


Find the lower bound...

a)

0.085

b)

0.075

c)

0.0849

d)

0.0749

84.

The following number has been rounded to the nearest metre.


200m


Find the upper bound...

a)

200.5m

b)

205m

c)

250m

d)

204.5m

85.

The following number has been rounded to the nearest 10 metres.


200m


Find the upper bound...

a)

200.5m

b)

205m

c)

250m

d)

204.5m

86.

The following number has been rounded to the nearest 10 metres.


370m


Find the upper bound...

a)

375m

b)

370.5m

c)

370.05m

d)

375.5m

87.

The following number has been rounded to the nearest metre.


370m


Find the upper bound...

a)

375m

b)

370.5m

c)

370.05m

d)

375.5m

88.

The following number has been rounded to the nearest metre.


125m


Find the upper bound...

a)

125.5m

b)

127.5m

c)

122.5m

d)

125.05m

89.

The following number has been rounded to the nearest 5 metres.


125m


Find the upper bound...

a)

125.5m

b)

127.5m

c)

122.5m

d)

125.05m

90.

The following number has been rounded to the nearest 5 metres.


125m


Find the lower bound...

a)

125.5m

b)

127.5m

c)

122.5m

d)

124.5m

91.

The following number has been rounded to the nearest 5 metres.


300m


Find the upper bound...

a)

302.5m

b)

297.5m

c)

300.5m

d)

299.5m

92.

The following number has been rounded to the nearest 5 metres.


300m


Find the lower bound...

a)

302.5m

b)

297.5m

c)

300.5m

d)

299.5m

93.

The following number has been rounded to the nearest 5 metres.


260m


Find the lower bound...

a)

262.5m

b)

257.5m

c)

260.6m

d)

259.5

94.

The following number has been rounded to the nearest 5 metres.


260m


Find the upper bound...

a)

262.5m

b)

257.5m

c)

260.6m

d)

259.5

95.

The following number has been rounded to the nearest metre.


2000m


Find the upper bound...

a)

2000.5m

b)

2005m

c)

2500m

d)

2004.5m

96.

(a)   is a measure of how close measurements come to each other when they are made in the same way.

97.
a)

Student A

b)

Student B

c)

Student C

d)

Cannot be determined

98.

How close a measurement is to the accepted value is called (a)   .

99.
This bullseye demonstrates...
a)
High Accuracy & High Precision
b)
High Accuracy & Low Precision
c)
Low Accuracy & High Precision
d)
Low Accuracy & Low Precision
100.

This bullseye demonstrates...

a)

High Accuracy & High Precision

b)

High Accuracy & Low Precision

c)

Low Accuracy & High Precision

d)

Low Accuracy & Low Precision

101.

Describe the accuracy and precision of the image

a)

Very accurate and somewhat precise

b)

Very accurate but not precise at all

c)

Not accurate at all but very precise

d)

not accurate and not very precise

102.

A set of data are all close in value to each other, but they are not close to the actual value. This set of data can be described as _________________.

a)

precise

b)

accurate

103.

Which best describes the target?

a)

Precise, but not accurate

b)

Accurate but not precise

c)

Precise and accurate

d)

Neither accurate nor precise

104.

Accuracy means

a)

the measurements are close to each other

b)

the measurement is close to the true value

c)

the measurements are close to each other

d)

the measurements are close to each other and the true value.

105.

Which student is the most ACCURATE?

a)

A

b)

B

c)

C

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