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20 Cards in this Set
- Front
- Back
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What are the two systems of measurement?
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English and Metric
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Definition of a measurement.
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Tells the dimension, cappacity, quantity or extent of something.
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What is the basice metric unit for mass?
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gram
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What is the basic unit for length?
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meter
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What is the basic unit for volume?
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liter
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10 to the 9th power
or 1 billion |
Giga
G |
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10 to the 6th power
or 1 million |
Mega
M |
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10 to the 3rd power
or 1 thousand |
kilo
k |
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10 to the negative 1
or 1/10th or .1 |
deci
d |
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10 to the negative 2
or 1/100th or .01 |
centi
c |
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10 to the negative 3
or 1/1000 or .001 |
milli
m |
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10 to the negative 6th
or .000001 or 1/1,000,000 (millionth) |
micro
(fancy m) |
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10 to the negative 9th
.000000001 1/1,000,000,000 (billionth) |
nano
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10 to the negative 12th
.000000000001 1/trillionth |
pico
p |
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What is an exact number?
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a number with no uncertainty
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What are the four definitions of exact numbers?
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counting number
definition (12 in = 1 foot) fractions conversions between like systems |
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What are inexact numbers?
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numbers with uncertainty
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Give two examples of inexact numbers.
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anything measured
conversions between different systems |
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How do you determine the precision of an analog device?
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you use the calibration marking PLUS one estimated digit
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What are significant figures?
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the digits in a measurement that are known with certainty plus one estimated digit
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