Units and Measurements

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23 Terms

1
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Length SI

meter (m)

2
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Mass SI

kilogram (kg)

3
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Time SI

Second (s)

4
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Temperature SI

Kelvin (K)

5
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Current SI

Ampere (A)

6
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Amount of substance SI

Mole (mol)

7
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Luminous Intensity SI

Candela (cd)

8
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kilo (k)

10³

9
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centi (c)

10^-2

10
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milli (m)

10^-3

11
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micro (μ)

10^-6

12
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nano (n)

10^-9

13
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mega (M)

10^6

14
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giga (G)

10^9

15
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Length dimension

L

16
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Mass dimension

M

17
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Time dimension

T

18
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Density dimension

ML^-3

19
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Area dimension

L²

20
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Volume dimension

L³

21
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Speed dimension

LT^-1

22
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Force dimension

MLT^-2

23
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Sig fig rules

  1. final answer can’t have more sig figs than least precise value

  2. multiplication and division: result has the sme number of sig figs as least precise input

  3. addition and subtraction: result have the no more decimal places than the least precise measurement