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Chapter3Test

Matching
 
 
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
 

 1. 

the force of gravity on an object
 

 2. 

narrowness of range of measurements
 

 3. 

the lowest point on the Kelvin scale
 

 4. 

the non-SI scale for temperature
 

 5. 

known or estimated in a measurement
 

 6. 

the SI scale for temperature
 

 7. 

closeness to true value
 

 8. 

the quantity of matter an object contains
 

Multiple Choice
Identify the choice that best completes the statement or answers the question.
 

 9. 

How many significant figures are in the measurement 811.40 grams?
a.
two
c.
five
b.
three
d.
four
 

 10. 

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
 

 11. 

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
 

 12. 

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
 

 13. 

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
 

 14. 

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
 

 15. 

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.
 

 16. 

How many significant figures are in the measurement 40,500 mg?
a.
five
c.
three
b.
two
d.
four
 

 17. 

What is the SI unit of mass?
a.
kilogram
c.
liter
b.
joule
d.
candela
 

 18. 

Which of the following equalities is NOT correct?
a.
1 cmmc018-1.jpg = 1 mL
c.
1000 mm = 1 m
b.
100 cg = 1 g
d.
10 kg = 1 g
 

 19. 

How many significant figures are in the measurement 0.003 4 kg?
a.
five
c.
four
b.
two
d.
This cannot be determined.
 

 20. 

What is the density of an object having a mass of 8.0 g and a volume of 25 cmmc020-1.jpg?
a.
0.32 g/cmmc020-2.jpg
c.
2.0 g/cmmc020-4.jpg
b.
3.1 g/cmmc020-3.jpg
d.
200 g/cmmc020-5.jpg
 

 21. 

Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees Celsius?
a.
34mc021-1.jpgC
c.
–34mc021-3.jpgC
b.
–61mc021-2.jpgC
d.
93mc021-4.jpgC
 

 22. 

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.
 

 23. 

Which of the following mass units is the largest?
a.
1 ng
c.
1 cg
b.
1 mg
d.
1 dg
 

 24. 

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
 

 25. 

If the temperature changes by 100 K, by how much does it change in mc025-1.jpgC?
a.
37mc025-2.jpgC
c.
273mc025-4.jpgC
b.
100mc025-3.jpgC
d.
0mc025-5.jpgC
 

 26. 

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
 

 27. 

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
 

 28. 

Which temperature scale has no negative temperatures?
a.
Kelvin
c.
Fahrenheit
b.
Celsius
d.
Joule
 

 29. 

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
 

 30. 

If a liter of water is heated from 20mc030-1.jpgC to 50mc030-2.jpgC, 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.
 

 31. 

The closeness of a measurement to its true value is a measure of its ____.
a.
accuracy
c.
reproducibility
b.
precision
d.
usefulness
 

 32. 

Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.
a.
11.0 mmmc032-1.jpg
c.
11.00 mmmc032-3.jpg
b.
11 mmmc032-2.jpg
d.
10 mmmc032-4.jpg
 

 33. 

Which of the following volumes is the smallest?
a.
one deciliter
c.
one liter
b.
one microliter
d.
one milliliter
 

 34. 

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
 

 35. 

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
 

 36. 

What is the measurement 1042 L rounded off to two significant digits?
a.
1.0 mc036-1.jpg 10mc036-2.jpg L
c.
1040 L
b.
1.1 mc036-3.jpg 10mc036-4.jpg L
d.
1050 L
 

 37. 

What is the temperature of absolute zero measured in mc037-1.jpgC?
a.
–373mc037-2.jpgC
c.
–73mc037-4.jpgC
b.
–273mc037-3.jpgC
d.
–173mc037-5.jpgC
 

 38. 

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
 

 39. 

What is the boiling point of water in kelvins?
a.
273 K
c.
373 K
b.
100 K
d.
0 K
 

 40. 

What quantity is represented by the metric system prefix deci-?
a.
0.01
c.
100
b.
0.1
d.
1000
 

 41. 

Density is found by dividing ____.
a.
volume by mass
c.
mass by volume
b.
mass by area
d.
area by mass
 

 42. 

What is the volume of 80.0 g of ether if the density of ether is 0.70 g/mL?
a.
8.0 mc042-1.jpg 10mc042-2.jpg
c.
1.1 mc042-5.jpg 10mc042-6.jpg
b.
5.6 mc042-3.jpg 10mc042-4.jpg
d.
8.8 mc042-7.jpg 10mc042-8.jpg
 

 43. 

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
 

 44. 

What is the temperature –34mc044-1.jpgC expressed in kelvins?
a.
239 K
c.
339 K
b.
139 K
d.
207 K
 

Short Answer
 

 45. 

What is the product of the number 500 and the measurement 0.003 57 m expressed in the correct number of significant digits?
 

 46. 

What is the density of an object having a mass of 5.0 g and a volume of 27.0 cubic centimeters?
 

 47. 

A cube of a gold-colored metal with a volume of 59 cmsa047-1.jpg has a mass of 980 g. The density of pure gold is 19.3 g/cmsa047-2.jpg. Is the metal pure gold? Show calculations to justify your answer.
 

 48. 

What is the sum of 7.210 L and 4 L expressed in the correct number of significant digits?
 

 49. 

Round off the measurement 0.003 095 5 m to three significant figures.
 

 50. 

What is the temperature 128 K expressed in degrees Celsius?
 

 51. 

What is the sum of 2.9 g and 5.47 g expressed in the correct number of significant digits?
 

 52. 

The density of osmium, which is the densest metal, is 22.57 g/cmsa052-1.jpg. What is the mass of a block of osmium that measures 1.00 cm sa052-2.jpg 4.00 cm sa052-3.jpg 2.50 cm?
 

Problem
 

 53. 

Convert 4,530mm to cm.  (Show all of your work for credit)
 

 54. 

Convert 552.3cg to mg ( show all of your work for credit)
 

 55. 

Convert 34.5cm to nm (show all of your work for credit)
 

 56. 

Convert 0.065km to decimeters ( Show all of your work for credit)
 

 57. 

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)
 

 58. 

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)
 

 59. 

A particle is traveling at 500 cm/s.  What is the speed in kilometers/hour?  (show all of your work for credit.
 

Essay
 

 60. 

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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