Matching
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Match each item with the correct statement below. a. | absolute zero | e. | mass | b. | Kelvin temperature scale | f. | significant figure | c. | Celsius temperature
scale | g. | precision | d. | weight | h. | accuracy |
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1.
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the force of gravity on an object
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2.
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narrowness of range of measurements
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3.
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the lowest point on the Kelvin scale
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4.
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the non-SI scale for temperature
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5.
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known or estimated in a measurement
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6.
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the SI scale for temperature
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7.
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closeness to true value
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8.
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the quantity of matter an object contains
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Multiple Choice Identify the
choice that best completes the statement or answers the question.
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9.
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How many significant figures are in the measurement 811.40 grams?
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10.
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The weight of an object ____.
a. | depends on its location | c. | is not affected by
gravity | b. | is the same as its mass | d. | is always the same |
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11.
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Express the sum of 7.68 m and 5.0 m using the correct number of significant
digits.
a. | 12.7 m | c. | 13 m | b. | 10 m | d. | 12.68 m |
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12.
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Which of the following measurements contains two significant figures?
a. | 0.004 04 L | c. | 0.004 40 L | b. | 0.000 44 L | d. | 0.004 00 L |
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13.
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What is the measurement 111.009 mm rounded off to four significant
digits?
a. | 111.0 mm | c. | 111.01 mm | b. | 110 mm | d. | 111 mm |
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14.
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The chief advantage of the metric system over other systems of measurement is
that it ____.
a. | is in multiples of 10 | c. | is in French | b. | is derived from nature
itself | d. | has more
units |
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15.
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The density of mercury is 5,427 kg/(m3). If the density of water is
1.0 g/mL, will mercury float or sink in water?
a. | Mercury will float because the density of mercury is 0.05427 g/mL, which is less than
the 1.0 g/mL density of water. | b. | Mercury will sink because the density of
mercury is 5.427 g/mL, which is greater than the 1.0 g/mL density of water. | c. | Mercury will float
because the density of mercury is 0.005427 g/mL, which is less than the 1.0 g/mL density of
water. | d. | Mercury will sink because the density of mercury is 5,427 g/mL, which is greater than
the 1.0 g/mL density of water. |
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16.
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How many significant figures are in the measurement 40,500 mg?
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17.
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What is the SI unit of mass?
a. | kilogram | c. | liter | b. | joule | d. | candela |
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18.
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Which of the following equalities is NOT correct?
a. | 1 cm = 1 mL | c. | 1000 mm = 1 m | b. | 100 cg = 1
g | d. | 10 kg = 1
g |
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19.
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How many significant figures are in the measurement 0.003 4 kg?
a. | five | c. | four | b. | two | d. | This cannot be
determined. |
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20.
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What is the density of an object having a mass of 8.0 g and a volume of 25
cm ?
a. | 0.32 g/cm | c. | 2.0 g/cm | b. | 3.1 g/cm | d. | 200
g/cm |
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21.
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Chlorine boils at 239 K. What is the boiling point of chlorine expressed in
degrees Celsius?
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22.
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If the temperature of a piece of steel decreases, what happens to its
density?
a. | The density increases. | b. | The density decreases. | c. | The density first
increases, then decreases. | d. | The density does not
change. |
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23.
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Which of the following mass units is the largest?
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24.
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Which group of measurements is the most precise? (Each group of measurements is
for a different object.)
a. | 2 g, 3 g, 4 g | c. | 1 g, 3 g, 5 g | b. | 2 g, 2.5 g, 3 g | d. | 2.0 g, 3.0 g, 4.0
g |
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25.
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If the temperature changes by 100 K, by how much does it change in C?
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26.
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Which of the following measurements (of different masses) is the most
accurate?
a. | 3.122 22 g | c. | 3.100 00 g | b. | 3.000 000 g | d. | 3.1000 g |
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27.
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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 ____.
a. | precise | c. | accurate and precise | b. | accurate | d. | neither accurate nor
precise |
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28.
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Which temperature scale has no negative temperatures?
a. | Kelvin | c. | Fahrenheit | b. | Celsius | d. | Joule |
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29.
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Express the sum of 1111 km and 222 km using the correct number of significant
digits.
a. | 1300 km | c. | 1333.0 km | b. | 1333 km | d. | 1330 km |
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30.
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If a liter of water is heated from 20 C to 50 C, what happens to its volume?
a. | The volume decreases. | b. | The volume increases. | c. | The volume first
increases, then decreases. | d. | The volume first decreases, then
increases. |
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31.
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The closeness of a measurement to its true value is a measure of its
____.
a. | accuracy | c. | reproducibility | b. | precision | d. | usefulness |
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32.
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Express the product of 2.2 mm and 5.00 mm using the correct number of
significant digits.
a. | 11.0 mm | c. | 11.00 mm | b. | 11 mm | d. | 10
mm |
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33.
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Which of the following volumes is the smallest?
a. | one deciliter | c. | one liter | b. | one microliter | d. | one milliliter |
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34.
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In the measurement 0.503 L, which digit is the estimated digit?
a. | the 0 immediately to the left of the 3 | b. | the 0 to the left of the decimal
point | c. | 3 | d. | 5 |
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35.
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What is the volume of 45.6 g of silver if the density of silver is 10.5
g/mL?
a. | 4.34 mL | c. | 479 mL | b. | 0.23 mL | d. | none of the
above |
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36.
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What is the measurement 1042 L rounded off to two significant digits?
a. | 1.0 10
L | c. | 1040 L | b. | 1.1 10 L | d. | 1050
L |
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37.
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What is the temperature of absolute zero measured in C?
a. | –373C | c. | –73C | b. | –273C | d. | –173C |
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38.
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As the density of a substance increases, the volume of a given mass of that
substance ____.
a. | decreases | c. | fluctuates | b. | is not affected | d. | increases |
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39.
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What is the boiling point of water in kelvins?
a. | 273 K | c. | 373 K | b. | 100 K | d. | 0 K |
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40.
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What quantity is represented by the metric system prefix deci-?
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41.
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Density is found by dividing ____.
a. | volume by mass | c. | mass by volume | b. | mass by area | d. | area by mass |
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42.
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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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43.
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What is the quantity 0.0075 meters expressed in centimeters?
a. | 0.075 cm | c. | 0.75 cm | b. | 7.5 cm | d. | 70.5 cm |
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44.
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What is the temperature –34 C expressed in
kelvins?
a. | 239 K | c. | 339 K | b. | 139 K | d. | 207 K |
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Short Answer
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45.
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What is the product of the number 500 and the measurement 0.003 57 m expressed
in the correct number of significant digits?
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46.
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What is the density of an object having a mass of 5.0 g and a volume of 27.0
cubic centimeters?
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47.
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A cube of a gold-colored metal with a volume of 59 cm has a mass of 980 g. The density of pure gold is 19.3 g/cm . Is the metal pure gold? Show calculations to justify your answer.
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48.
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What is the sum of 7.210 L and 4 L expressed in the correct number of
significant digits?
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49.
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Round off the measurement 0.003 095 5 m to three significant figures.
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50.
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What is the temperature 128 K expressed in degrees Celsius?
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51.
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What is the sum of 2.9 g and 5.47 g expressed in the correct number of
significant digits?
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52.
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The density of osmium, which is the densest metal, is 22.57 g/cm . What is the mass of a block of osmium that measures 1.00 cm
4.00 cm 2.50 cm?
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Problem
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53.
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Convert 4,530mm to cm. (Show all of your work for credit)
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54.
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Convert 552.3cg to mg ( show all of your work for credit)
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55.
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Convert 34.5cm to nm (show all of your work for credit)
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56.
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Convert 0.065km to decimeters ( Show all of your work for credit)
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57.
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What is the mass, in kilograms, of 14.0 L of gasoline? (Assume the density of
gasoline is 0.680g/cm3 (Show all work to get credit)
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58.
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What is the volume, in cubic centimeters, of a sample of cough syrup that has a
mass of 50.0g? The density of cough syrup is 0.950g/cm3. (Show all of your work for
credit)
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59.
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A particle is traveling at 500 cm/s. What is the speed in
kilometers/hour? (show all of your work for credit.
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Essay
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60.
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Explain the difference between precision and accuracy. Suppose you made three
different mass measurements of a sugar sample you knew to have a mass of 1 g. How would you know
whether or not the measurements were accurate? How would you know whether or not they were precise?
Could the three measurements be precise, but not accurate? Explain.
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