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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. 

closeness to true value
 

 3. 

the SI scale for temperature
 

 4. 

narrowness of range of measurements
 

 5. 

the lowest point on the Kelvin scale
 

 6. 

known or estimated in a measurement
 

 7. 

the quantity of matter an object contains
 

 8. 

the non-SI scale for temperature
 

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

 9. 

Express the product of 2.2 mm and 5.00 mm using the correct number of significant digits.
a.
10 mmmc009-1.jpg
c.
11.0 mmmc009-3.jpg
b.
11.00 mmmc009-2.jpg
d.
11 mmmc009-4.jpg
 

 10. 

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

 11. 

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 sink because the density of mercury is 5.427 g/mL, which is greater 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 0.05427 g/mL, which is less than the 1.0 g/mL density of water.
d.
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.
 

 12. 

What is the measurement 1042 L rounded off to two significant digits?
a.
1.1 mc012-1.jpg 10mc012-2.jpg L
c.
1040 L
b.
1050 L
d.
1.0 mc012-3.jpg 10mc012-4.jpg L
 

 13. 

If the temperature changes by 100 K, by how much does it change in mc013-1.jpgC?
a.
37mc013-2.jpgC
c.
0mc013-4.jpgC
b.
100mc013-3.jpgC
d.
273mc013-5.jpgC
 

 14. 

What is the density of an object having a mass of 8.0 g and a volume of 25 cmmc014-1.jpg?
a.
3.1 g/cmmc014-2.jpg
c.
0.32 g/cmmc014-4.jpg
b.
2.0 g/cmmc014-3.jpg
d.
200 g/cmmc014-5.jpg
 

 15. 

Chlorine boils at 239 K. What is the boiling point of chlorine expressed in degrees Celsius?
a.
–34mc015-1.jpgC
c.
34mc015-3.jpgC
b.
–61mc015-2.jpgC
d.
93mc015-4.jpgC
 

 16. 

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

 17. 

What is the temperature of absolute zero measured in mc017-1.jpgC?
a.
–373mc017-2.jpgC
c.
–173mc017-4.jpgC
b.
–273mc017-3.jpgC
d.
–73mc017-5.jpgC
 

 18. 

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

 19. 

Which of the following measurements contains two significant figures?
a.
0.000 44 L
c.
0.004 40 L
b.
0.004 04 L
d.
0.004 00 L
 

 20. 

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

 21. 

Which of the following equalities is NOT correct?
a.
10 kg = 1 g
c.
100 cg = 1 g
b.
1 cmmc021-1.jpg = 1 mL
d.
1000 mm = 1 m
 

 22. 

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

 23. 

If the temperature of a piece of steel decreases, what happens to its density?
a.
The density decreases.
b.
The density increases.
c.
The density does not change.
d.
The density first increases, then decreases.
 

 24. 

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

 25. 

Which group of measurements is the most precise? (Each group of measurements is for a different object.)
a.
2 g, 2.5 g, 3 g
c.
2 g, 3 g, 4 g
b.
2.0 g, 3.0 g, 4.0 g
d.
1 g, 3 g, 5 g
 

 26. 

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

 27. 

As the density of a substance increases, the volume of a given mass of that substance ____.
a.
increases
c.
fluctuates
b.
is not affected
d.
decreases
 

 28. 

In the measurement 0.503 L, which digit is the estimated digit?
a.
5
b.
the 0 to the left of the decimal point
c.
the 0 immediately to the left of the 3
d.
3
 

 29. 

Which of the following measurements (of different masses) is the most accurate?
a.
3.000 000 g
c.
3.122 22 g
b.
3.1000 g
d.
3.100 00 g
 

 30. 

What is the volume of 80.0 g of ether if the density of ether is 0.70 g/mL?
a.
8.8 mc030-1.jpg 10mc030-2.jpg
c.
1.1 mc030-5.jpg 10mc030-6.jpg
b.
5.6 mc030-3.jpg 10mc030-4.jpg
d.
8.0 mc030-7.jpg 10mc030-8.jpg
 

 31. 

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

 32. 

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

 33. 

If a liter of water is heated from 20mc033-1.jpgC to 50mc033-2.jpgC, what happens to its volume?
a.
The volume decreases.
b.
The volume first increases, then decreases.
c.
The volume increases.
d.
The volume first decreases, then increases.
 

 34. 

Express the sum of 1111 km and 222 km using the correct number of significant digits.
a.
1330 km
c.
1333 km
b.
1333.0 km
d.
1300 km
 

 35. 

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
 

 36. 

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

 37. 

What is the measurement 111.009 mm rounded off to four significant digits?
a.
111 mm
c.
111.01 mm
b.
111.0 mm
d.
110 mm
 

 38. 

The weight of an object ____.
a.
is the same as its mass
c.
is not affected by gravity
b.
depends on its location
d.
is always the same
 

 39. 

What is the temperature –34mc039-1.jpgC expressed in kelvins?
a.
339 K
c.
139 K
b.
207 K
d.
239 K
 

 40. 

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

Short Answer
 

 41. 

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

 42. 

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

 43. 

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

 44. 

A cube of a gold-colored metal with a volume of 59 cmsa044-1.jpg has a mass of 980 g. The density of pure gold is 19.3 g/cmsa044-2.jpg. Is the metal pure gold? Show calculations to justify your answer.
 

 45. 

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

 46. 

What is the temperature 128 K expressed in degrees Celsius?
 

 47. 

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

Problem
 

 48. 

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)
 

 49. 

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

 50. 

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)
 

 51. 

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

 52. 

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

 53. 

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

Essay
 

 54. 

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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