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Significant Figures
the digits of the demical form of a # beginning with the leftmost nonzero digits and extending to the right
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Define Inversely Proportional
a relationship where a # either increases as another decreases OR decreases as the another increases
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Define Directly Proportional
a relationship where a # increases or both decreases together with another # at the same ratio
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Define Accuracy
how close the average of a set of measurements is to the accept value (AAA)
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Define Precision
how close a set of measurement values are to one another (reproducibility)
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Define Density
the amount per unit size
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Tera is equal to what ??
T, 10^12
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Giga is equal to what ??
G, 10^9
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Mega is equal to what ??
M, 10^6
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Kilo is equal to what ??
K, 10^3
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Hecto is equal to what ??
h, 10^2
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Deka is equal to what ??
da, 10^1
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Deci is equal to what ??
d, 10^-1
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Centi is equal to what ??
C, 10^-2
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Mili is equal to what ??
m, 10^-3
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Micro is equal to what ??
M, 10^-6
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Nano is equal to what ??
n, 10^-9
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Pico is equal to what ??
p, 10^-12
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Solve: (2.1 * 10^6)(4.0 * 10^-4)
8.4 * 10^2
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1.6 * 10^-8/ 8.0 * 10^-3
2. * 10^-6
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4.0 * 10^4
+6 * 10^3
4.6 * 10^7
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8.0 * 10^-4
- 9 * 10^-5
7.1 * 10^-4
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What is the Density Formula ??
D=m/v
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What is the % Error Formula ??
% Error= exp-acc divide by acc, multiplied by 100 %
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