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Counting Significant Figures Flashcards

1
Q

284

has how many significant figures?

A

284

Has 3 sig figs

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2
Q

28.5

has how many significant figures?

A

28.5

Has 3 sig figs

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3
Q

1.20

has how many significant figures?

A

1.20

Has 3 sig figs

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4
Q

0.719

has how many significant figures?

A

0.719

Has 3 sig figs

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5
Q

What is the “Mantissa” of this number?

A

1.25

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6
Q

0.0004

has how many significant figures?

A

0.0004

Has 1 sig fig

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7
Q

0.00090

has how many significant figures?

A

0.00090

Has 2 sig figs

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8
Q

770

has how many significant figures?

A

770

Has 2 sig figs

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9
Q

930,020

Which digit above is the uncertain digit?

A

930,020

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10
Q

0.73666

has how many significant figures?

A

0.73666

Has 5 sig figs

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11
Q

What is the exponent of this number?

A

The 3 (or the 103)

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12
Q

670.45

Which digit above is the uncertain digit?

A

670.45

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13
Q

80000

has how many significant figures?

A

80000

Has 1 sig fig

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14
Q

What is meant by the words

“The Uncertain Digit?”

A

The “Uncertain Digit” is usually the farthest digit on the right.

  1. 2
  2. 770

574

92.000

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15
Q

3000

has how many significant figures?

A

3000

Has 1 sig fig

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16
Q

12

has how many significant figures?

A

12

Has 2 sig figs

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17
Q

What is the “Mantissa” of this number?

A

1.38502

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18
Q

.0080

Which digit above is the uncertain digit?

A

.0080

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19
Q

600783

has how many significant figures?

A

600783

Has 6 sig figs

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20
Q

559.832

has how many significant figures?

A

559.832

Has 6 sig figs

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21
Q

What is the “Big Digit?”

A

The “Big Digit” is the farthest left, non-zero, digit in a number.

250.9

30337

0.000344

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22
Q

1.003

has how many significant figures?

A

1.003

Has 4 sig figs

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23
Q

49.924

has how many significant figures?

A

49.924

Has 5 sig figs

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24
Q

What is the exponent of this number?

A

-1 (or the 10-1)

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25
37.003 has how many significant figures?
37.003 Has 5 sig figs
26
1234500 has how many significant figures?
1234500 Has 5 sig figs
27
0.012345 has how many significant figures?
0.012345 Has 5 sig figs
28
37982 has how many significant figures?
37982 Has 5 sig figs
29
If a number has a zero with a line over it... Where is the uncertain digit? (This is an important exception to some other rules you might see on these flash cards.
The zero with the line over it is the uncertain digit.
30
0.0442 has how many significant figures?
0.0442 Has 3 sig figs
31
When a scientist writes down a number how many "uncertain digits" do they typically keep.
One ## Footnote This will usually be the last digit on the right. 454.07
32
20 has how many significant figures?
20 Has 1 sig fig
33
55 has how many significant figures?
55 Has 2 sig figs
34
0.033 has how many significant figures?
0.033 Has 2 sig figs
35
2000 Which digit above is the uncertain digit?
**_2_**000
36
37.07 has how many significant figures?
37.07 Has 4 sig figs
37
3.96 has how many significant figures?
3.96 Has 3 sig figs
38
0.0308 has how many significant figures?
0.0308 Has 3 sig figs
39
When we ask _"How many digits wide is a number?"_ What do we mean?
We mean how many digits from the Big Digit to the Uncertain Digit. * This number is 5 digits wide:* 603. 04
40
You pick 3 tennis balls out of a bin. What is the uncertainty associated with the number 3 in this case.
There is no uncertainty. You can be sure you have "EXACTLY" 3 tennis balls. You counted to 3, you did not "measure" 3 tennis balls.
41
0.0020 has how many significant figures?
0.0020 Has 2 sig figs
42
25000 has how many significant figures?
25000 Has 2 sig figs
43
30 has how many significant figures?
30 Has 1 sig fig
44
930 has how many significant figures?
930 Has 2 sig figs
45
400 has how many significant figures?
400 Has 1 sig fig
46
.008 Which digit above is the uncertain digit?
.00**_8_**
47
20.05 has how many significant figures?
20.05 Has 4 sig figs
48
1234567 has how many significant figures?
1234567 Has 7 sig figs
49
800.0008 has how many significant figures?
800.0008 Has 7 sig figs
50
1.6 has how many significant figures?
1.6 Has 2 sig figs
51
156 has how many significant figures?
156 Has 3 sig figs
52
An "EXACT NUMBER" has how many sig figs?
Unlimited An exact number is not a measurement, thus, it has no uncertainty.
53
6 has how many significant figures?
6 Has 1 sig fig
54
9.82 has how many significant figures?
9.82 Has 3 sig figs
55
5988 has how many significant figures?
5988 Has 4 sig figs
56
9.7703 has how many significant figures?
9.7703 Has 5 sig figs
57
30.0004 has how many significant figures?
30.0004 Has 6 sig figs
58
0.007 has how many significant figures?
0.007 Has 1 sig fig
59
4328.9 has how many significant figures?
4328.9 Has 5 sig figs
60
81.909 has how many significant figures?
81.909 Has 5 sig figs
61
2807 has how many significant figures?
2807 Has 4 sig figs
62
2005 has how many significant figures?
2005 Has 4 sig figs
63
987.4 has how many significant figures?
987.4 Has 4 sig figs
64
48923.4 has how many significant figures?
48923.4 Has 6 sig figs
65
0.05 has how many significant figures?
0.05 Has 1 sig fig
66
0.08800 has how many significant figures?
0.08800 Has 4 sig figs

Online Physical Science (16 decks)

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