Questão 1
Questão
[blank_start]absolute zero[blank_end] - the lowest point on the Kelvin scale
Questão 2
Questão
[blank_start]Kelvin temperature scale[blank_end] - the SI scale for temperature
Questão 3
Questão
[blank_start]mass[blank_end] - kilogram is the SI unit for this quantity
Responda
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mass
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weight
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precision
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Kelvin temperature scale
Questão 4
Questão
[blank_start]accuracy[blank_end] - closeness to true value
Responda
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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
Questão 5
Questão
[blank_start]Celsius temperature scale[blank_end] - the non-SI scale for temperature
Questão 6
Questão
[blank_start]significant figure[blank_end] - known or estimated in a measurement
Responda
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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
Questão 7
Questão
[blank_start]precision[blank_end] - narrowness of range of measurements
Responda
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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
Questão 8
Questão
[blank_start]weight[blank_end] - the force of gravity on an object
Responda
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weight
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mass
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precision
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absolute zero
Questão 9
Questão
What quantity is represented by the metric system prefix deci-?
Questão 10
Questão
Express the sum of 7.68 m and 5.0 m using the correct number of significant digits.
Questão 11
Questão
In measurement 0.503 L, which digit is the estimated digit?
Questão 12
Questão
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 ___.
Questão 13
Questão
What is the measurement 111.009 mm rounded off to four significant digits?
Responda
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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
Questão 14
Questão
What is the volume of 45.6 g of silver if the density of silver is 10.5 g/mL?
Responda
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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
Questão 15
Questão
What is the boiling point of water in kelvins?
Questão 16
Questão
When multiplying and dividing measured quantities, the number of significant figures in the result should be equal to the number of significant figures in ___.
Responda
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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
Questão 17
Questão
Which of the following units is Not an official SI unit?
Responda
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kilograms
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litter
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ampere
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mole
Questão 18
Questão
The diameter of a carbon atom is 0.000 000 000 154 m. What is this number expressed in scientific notation?
Responda
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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
Questão 19
Questão
The weight of an object __.
Questão 20
Questão
A cubic meter is about the same as the volume occupied by a ___.
Responda
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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
Questão 21
Questão
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?
Responda
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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