Chapter 3 Part 2 – Flashcards
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Closeness to true value
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Accuracy
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Narrowness of range of measurements
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Precision
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Known or estimated in a measurement
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Significant figure
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The quantity of matter an object contains
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Mass
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The lowest point on the Kelvin scale
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Absolute zero
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The SI scale for temperature
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Kelvin temperature scale
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The force of gravity on an object
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Weight
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The non-SI scale for temperature
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Celsius temperature scale
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The diameter of a carbon atom is 0.000000000154 m. What is this number expressed in scientific notation?
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1.54 x 10^-10 m
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The expression of 5008 km in scientific notation is _____.
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5.008 x 10^3 km
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The quantity 44 liters expressed in cubic meters is ____.
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0.044 m^3
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Density is found by dividing _____.
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Mass by volume
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What is the density of an object having a mass of 8.0 g and a volume of 25 cm^3?
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0.33 g/cm^3
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What is the volume of 80.0 g of ether if the density of ether is 0.70 g/mL?
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1.1 x 10^2
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What is the volume of 45.6g of silver if the density of silver is 10.5 g/mL?
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4.34 mL
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If a liter of water is heated from 20•C to 50•C, what happens to its volume?
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The volume increases
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If the temperature of a piece of steel decreases, what happens to its density?
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The density increases.
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As the density of a substance increases, the volume of a given mass of that substance _____.
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Decreases
