Frage 1
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[blank_start]absolute zero[blank_end] - the lowest point on the Kelvin scale
Frage 2
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[blank_start]Kelvin temperature scale[blank_end] - the SI scale for temperature
Frage 3
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[blank_start]mass[blank_end] - kilogram is the SI unit for this quantity
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mass
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weight
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precision
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Kelvin temperature scale
Frage 4
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[blank_start]accuracy[blank_end] - closeness to true value
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accuracy
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precision
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absolute zero
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Kelvin temperature scale
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mass
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significant figure
Frage 5
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[blank_start]Celsius temperature scale[blank_end] - the non-SI scale for temperature
Frage 6
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[blank_start]significant figure[blank_end] - known or estimated in a measurement
Antworten
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significant figure
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mass
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weight
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precision
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accuracy
Frage 7
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[blank_start]precision[blank_end] - narrowness of range of measurements
Antworten
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precision
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accuracy
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significant figure
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mass
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weight
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absolute zero
Frage 8
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[blank_start]weight[blank_end] - the force of gravity on an object
Antworten
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weight
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mass
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precision
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absolute zero
Frage 9
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What quantity is represented by the metric system prefix deci-?
Frage 10
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Express the sum of 7.68 m and 5.0 m using the correct number of significant digits.
Frage 11
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In measurement 0.503 L, which digit is the estimated digit?
Frage 12
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Three different people weigh a standard mass of 2.00 g on the same balance. Each person obtains a reading of 7.32 g for the mass of the standard. These results imply that the balance that was used is ___.
Frage 13
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What is the measurement 111.009 mm rounded off to four significant digits?
Antworten
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110 mm
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111.0 mm
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111.01 mm
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111 mm
Frage 14
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What is the volume of 45.6 g of silver if the density of silver is 10.5 g/mL?
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479 mL
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4.34 mL
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0.23 mL
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none of the above
Frage 15
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What is the boiling point of water in kelvins?
Frage 16
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When multiplying and dividing measured quantities, the number of significant figures in the result should be equal to the number of significant figures in ___.
Antworten
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all of the measurements
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the most precise measurement
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the least and most precise measurements
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the least precise measurement
Frage 17
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Which of the following units is Not an official SI unit?
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kilograms
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litter
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ampere
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mole
Frage 18
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The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?
Antworten
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1.54 x 10⁻¹⁰
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1.54 x 10¹⁰
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1.54 x 10¹²
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1.54 x 10⁻¹²
Frage 19
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The weight of an object __.
Frage 20
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A cubic meter is about the same as the volume occupied by a ___.
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a cup of milk
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washing machine
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kilogram of water
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basketball arena
Frage 21
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What is the volume of a salt crystal measuring 2.44 x 10⁻² m by 1.4 x 10⁻³ m by 8.4 x 10⁻³ m?
Antworten
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2.9 x 10⁻⁶ m³
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2.9 x 10⁻⁵ m³
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2.9 x 10⁻⁴ m³
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2.9 x 10⁻⁷ m³