Indiana Academic Super Bowl
A Program of the Indiana Association of School Principals
Science Round 2014 – Senior Division Coaches Practice
Students:
Throughout this competition, foreign
names and words will be used.
If there are any discrepancies
between how a word/phrase should
be pronounced and what you see
on the screen, the screen
supersedes what is spoken.
SD-CP-Sc-1
Approximately 70% of the biomass of a typical
prairie is found in the_________.
A. roots of the plants
B. stems and leaves of the plants
C. bodies of the vertebrate animals like bison,
antelopes, and rodents
D. bodies of the invertebrates, like insects
SD-CP-Sc-2
The main determining factor of the location of a
biome on the planet is the _________.
A. longitude
B. latitude
C. continent
D. presence of an ocean
SD-CP-Sc-3
Indiana falls predominantly in which biome?
A. temperate grassland
B. boreal forest
C. temperate deciduous forest
D. savanna grassland
SD-CP-Sc-4
Biomes are named primarily for what feature?
A. dominant animal types
B. dominant cultural or ethnic groups
C. local geographic features
D. dominant plant communities
SD-CP-Sc-5
“Anthropogenic” refers to _______.
A. originating from the action of humans
B. generated by insects and other jointed-leg
animals
C. the genes of various animals
D. blood-borne genetic materials
SD-CP-Sc-6
The regular, usually predictable, replacement of
one ecological community with another over
time is known as _________.
A. biogenesis
B. anthropogenesis
C. ecological succession
D. ecological destiny
SD-CP-Sc-7
One of the major actions of the homesteading and
settlement of the American prairie in this year’s time
period was the plowing of the native prairies and
conversion to monoculture cropland. A significant result
of this ecological impact resulted in _______.
A. extinction of the Plains bison
B. a great deal of soil erosion leading to the birth of the
Dust Bowl within a few decades
C. a population explosion of Americans and the building of
large cities on the Plains
D. an increase in destructive prairie fires that destroyed
many farms
SD-CP-Sc-8
The richest soils for growing crops were originally
found in which North American biome?
A. temperate deciduous forest
B. temperate grassland
C. tropical rainforest
D. boreal forest
SD-CP-Sc-9
A species that is designated as “endangered” is
___________.
A. a species that can no longer reproduce and will
definitely go extinct
B. a species in danger of extinction if current
conditions in its population dynamics are not
changed
C. an organism brought to a place where it has not
lived before
D. a species with a typically broad range of suitable
habitats
SD-CP-Sc-10
Which of the following is characteristic of
the eastern half of the United States?
A. temperate deciduous forests
B. grasslands
C. savanna
D. boreal forests
SD-CP-Sc-11
Ague is the name given by early American
frontier settlers for the disease we know as ____.
A. dysentery
B. cholera
C. tetanus
D. malaria
SD-CP-Sc-12
During the time of the westward expansion into
the frontier, malaria was thought to be caused
by ________.
A. mosquitoes
B. fleas
C. getting chilled after getting wet
D. bad vapors from freshly broken sod or soil
SD-CP-Sc-13
Since doctors were hard to find in the new territories,
people moving westward took medicinal items along
with them. Patent medicines were often purchased for
the treatment of various and sundry ailments. While
these elixirs, oils, and liniments usually did contain a
variety of herbal and other ingredients, many (if not
most) contained large proportions of ______,
which may explain their general popularity.
A. sassafras
B. licorice
C. ethyl alcohol
D. THC
SD-CP-Sc-14
The two major reasons for the dramatic decline in
populations or even the extinction of several species of
animals during this time period were
___________.
A. diseases spread to the animals from domestic
animals and unusually bad weather
B. market hunting and habitat destruction
C. capture for sale to the pet industry back
East and in Europe and sport hunting
D. low beginning populations and unusually
harsh winters during this period of time
SD-CP-Sc-15
Cholera is a disease caused by
__________.
A. a bacterium
B. a virus
C. miasmas
D. a protozoan
SD-CP-Sc-16
Settling and living in the western territories was
rife with many dangers. If a person were to be
seriously injured with a wound to the limb, the
wound could easily become infected and the
person could succumb to _________.
A. dysentery
B. malaria
C. cholera
D. gangrene
SD-CP-Sc-17
Toward the end of the time period for this year’s
competition, erosion became an increasing
problem in the Great Plains and prairies. We can
attribute the anthropogenic reasons for the
problem of erosion to _________.
A. extended drought
B. removal of deep-rooted grasses
C. use of bad farming practices, especially
inappropriate plowing practices
D. both B and C
SD-CP-Sc-18
Cholera was more likely to strike a small town
community rather than an individual homestead.
This is because __________.
A. Cholera is predominantly a disease related to poor
water sanitation in communities
B. Cholera is more likely spread by horses than
by cattle
C. Cholera is spread from sneezes and people are
more concentrated in towns than on homesteads
D. People living in homesteads tended to be rugged
and healthy people and better resisted diseases
than town-folk
SD-CP-Sc-19
Prairie soils are far more rich in _______ than
are forest soils.
A. iron
B. calcium
C. clay
D. organic material
SD-CP-Sc-20
John James Audubon spent a great deal of time in southern Indiana
and northern Kentucky observing nature, collecting specimens, and
making sketches of wildlife. In his notes, he reported while
traveling near Louisville, once seeing birds in flight so numerous
that “the light of noon-day was obscured by an eclipse” and that he
saw the passing of these birds passing “in undiminished numbers,
and continued to do so for three days in succession.” The birds he
had been observing were _________.
A. Carolina parakeets
B. Eskimo curlews
C. passenger pigeons
D. American blackbirds
SD-CP-Sc-21
According to Ohm’s Law, when the applied
voltage across a fixed resistance is doubled, the
current is _________.
A. doubled
B. quadrupled
C. halved
D. quartered
SD-CP-Sc-22
A 2 ohm and a 4 ohm resistor are connected in
series with a 12 volt battery. What is the current
that flows through the 2 ohm resistor?
A. 9 amperes
B. 6 amperes
C. 3 amperes
D. 2 amperes
SD-CP-Sc-23
According to Ohm’s Law, if the resistance in a
circuit is doubled and the voltage is constant,
the current is __________.
A. doubled
B. quadrupled
C. halved
D. quartered
SD-CP-Sc-24
What is the resistance of the coil in an electric
motor that draws 10 amperes of current when
operated at 120 volts?
A. 0.083 ohms
B. 12 ohms
C. 20 ohms
D. 1200 ohms
SD-CP-Sc-25
Two light bulbs are connected in parallel to a
power supply, adding another light bulb in
parallel to the first two bulbs circuit will ____.
A. draw more current from the power supply
B. draw less current from the power supply
C. draw the same current from the power supply
D. not enough information given to answer the
question
SD-CP-Sc-26
What voltage is needed to supply 5 amperes of
current to an electric motor that has a resistance
of 10 ohms?
A. 0.5 volts
B. 2 volts
C. 5 volts
D. 50 volts
SD-CP-Sc-27
According to Faraday’s Law, an induced current
is present in a coil of wire if ________.
A. the coil is stationary and strength of the
field is changing
B. the coil is rotating in a uniform magnetic
field
C. the coil is moved into or out of the field
D. all of the above
SD-CP-Sc-28
The maximum emf induced in a 10 turn coil with
a cross sectional area of 0.1m2 rotating at
20 rad/s in a uniform 10 Tesla magnetic field is
________.
A. 200 volts
B. 628 volts
C. 20 volts
D. 2000 volts
SD-CP-Sc-29
A maximum emf of 100 volts is produced by a
square coil with an area of 0.25 m2 rotating at
50 rad/s in a 2 Tesla magnetic field. How many
turns are in the coil?
A. 2
B. 4
C. 8
D. 10
SD-CP-Sc-30
What is the maximum current flowing in a coil
that has a resistance of 10 ohms, if the maximum
induced emf is 50 volts?
A. 0.2 amps
B. 500 amps
C. 5 amps
D. 0.5 amps
SD-CP-Sc-31
If a gas expands while maintaining a constant
pressure, the process is called __________.
A. adiabatic
B. isobaric
C. isochoric
D. isothermal
SD-CP-Sc-32
If a gas is heated while maintaining a constant
volume, the process is called _________.
A. adiabatic
B. isobaric
C. isochoric
D. isothermal
SD-CP-Sc-33
If a gas expands while maintaining a constant
temperature, the process is called _________.
A. adiabatic
B. isobaric
C. isochoric
D. isothermal
SD-CP-Sc-34
In an adiabatic process, _________.
A. no heat is added or removed from the gas
B. the pressure of the gas is constant
C. the volume of the gas is constant
D. the temperature of the gas is constant
SD-CP-Sc-35
No work is done by a gas during which type of
process?
A. adiabatic
B. isobaric
C. isochoric
D. isothermal
SD-CP-Sc-36
Look at the Pressure-Volume diagram that shows
four different paths of gas going from State 1 to
State 2. Which path shows the most work done
by the gas?
A. A
B. B
C. C
D. D
SD-CP-Sc-37
How much work is done by a gas in an isobaric
expansion from 1 cubic meter to 3 cubic meters if
the pressure of the gas is 100 Pascals?
A. 100 joules
B. 200 joules
C. 300 joules
D. 400 joules
SD-CP-Sc-38
What is the change in internal energy of a gas
when 1000 joules is added to the gas and 600
joules of work is done by the gas?
A. 1600 joules
B. 1000 joules
C. 600 joules
D. 400 joules
SD-CP-Sc-39
What is the efficiency of a heat engine that does
600 joules of work when 1000 joules of heat is
supplied to the engine?
A. 20%
B. 40%
C. 60%
D. 67%
SD-CP-Sc-40
What is the maximum efficiency of a heat
engine that gets its heat from a 400K
reservoir and dumps the waste heat into
a 300K reservoir?
A. 25%
B. 75%
C. 33%
D. 67%
SD-CP-Sc-41
Water is considered the universal solvent
because it ________.
A. is non-polar
B. it dissolves many non-polar substances
C. dissolves all substances
D. dissolves ionic and polar substances
SD-CP-Sc-42
Water is considered a polar because it
________.
A. has both a negative and a positive end
B. forms hydrogen bonds
C. dissolves ionic substances
D. separates from oil mixtures
SD-CP-Sc-43
The solvent in a solution is the substance
_________.
A. found in the greater amount
B. found in the lesser amount
C. which is liquid
D. which is solid
SD-CP-Sc-44
In an aqueous solution, water is the ______.
A. solute
B. solvent
C. substance found in the least amount
D. best coagulant
SD-CP-Sc-45
Which of the following solutions will show no
concentration dependence on temperature?
A. 1.0 molal glucose
B. 1.0 molar glucose
C. 10% weight/volume glucose
D. 1.0 molar sucrose
SD-CP-Sc-46
Which property of a solution does not
change with an increase in temperature?
A. molarity
B. density
C. molality
D. all of these properties show a
temperature dependence
SD-CP-Sc-47
Normally, the melting point and boiling point of a substance
increase with molar mass. Considering H2O, H2S, H2Te
series the boiling points are 100 C, -60 C, -41.5 C. The
reason for this anomaly is the _________.
A. water molecule is the largest molecule
B. formation of hydrogen bonds in water
C. electronegativity of Te is greater than that of O.
D. water molecule ionizes
SD-CP-Sc-48
In a solution, the substance present in the
greater amount is considered the
_________.
A. solute
B. most dense
C. concentrate
D. solvent
SD-CP-Sc-49
An aqueous solution is one that
__________.
A. is pale blue-green in color
B. does not leave a solid when evaporated
C. contains dissolved solids
D. has water as a solvent
SD-CP-Sc-50
Another name for a homogenous mixture is
a ___________.
A. suspension
B. solution
C. solvation
D. colligation
SD-CP-Sc-51
The change in boiling point of a solution of
a non-electrolyte depends on all of the
following EXCEPT ________.
A. the number of particles
B. the solution concentration
C. the solvent density
D. the solute identity
SD-CP-Sc-52
The vapor pressure of a solution ________.
A. is lower than that of pure solvent
B. is higher than that of pure solvent
C. depends on the osmotic pressure of the
solvent
D. depends on the boiling point of the
solute
SD-CP-Sc-53
The electron geometry of the electrons
on the central atom in a water molecule
is _________.
A. tetrahedral
B. square planar
C. bent
D. trigonal pyramidal
SD-CP-Sc-54
Use the following table to answer the question
below:
Which of the substances in the table can act as
either the solute or the solvent when mixed with
100g of water at 20 C?
A. NH3 B. C6H5COOH
C. MgCl2 D. CH3CH2OH
SOLUBILITY OF SUBSTANCES IN WATER @ 20°C
Substance Formula/State Solubility (g/100g water
Magnesium chloride MgCl2/solid 54.6
Ammonia NH3/gas 34.0
Ethanol CH3CH2OH/liquid Infinite
Benzoic acid C6H5COOH/solid 0.29
SD-CP-Sc-55
If the attractive forces among solid particles are
less than the attractive forces between the solid and
the liquid, the solid will __________.
A. probably form a new precipitate as its
crystal lattice is broken and reformed
B. be unaffected because attractive forces within
the crystal are too strong for dissolution to occur
C. dissolve as particles are pulled away from the
crystal lattice by the liquid molecules
D. begin the process of melting to form a liquid
SD-CP-Sc-56
A student prepared a solution by heating 100 mL of water while
adding KCl crystals until no more KCl would dissolve. She
capped the clear solution and set it aside on the lab bench. After
several hours she noticed the solution had become cloudy and some
solid had settled to the bottom of the flask. Which statement best
describes what happened?
A. As the solution cooled, evaporation of water increased the KCl concentration beyond its solubility
B. Water molecules trapped with the KCl crystals were released after heating
C. At lower temperatures, the solubility of the KCl decreased and recrystallization occurred
D. At increased temperatures, the solubility of the KCl increased and remained too high after cooling
SD-CP-Sc-57
If the solubility of NaCl at 25°C is 36.2/g/100g of water, what mass of NaC1 can be dissolved in 50.0 g of water at that temperature?
A. 18.1 g
B. 36.2 g
C. 72.4 g
D. 86.2 g
SD-CP-Sc-58
The Kbp for water is 0.52°C/molal. If
0.085 mol of NaCl is added to 180 g of
water, what is the new boiling point?
A. 99.5°C
B. 99.8°C
C. 100.2°C
D. 100.5°C
SD-CP-Sc-59
Why do road crews put salt in icy roads during
the winter?
A. to lower the freezing point of water
B. to provide traction for vehicles
C. to raise the melting point of ice
D. to make a solution of the sand
SD-CP-Sc-60
Which substance will be most effective in
removing ice from highways in the winter?
A. sand
B. sugar
C. NaCl
D. CaCl2
SD-CP-Sc-61
An ideal solution is formed by mixing 0.26
mol of pentane (vapor pressure = 511 torr)
with 0.34 mol of hexane (vapor pressure = 150
torr). What is the total vapor pressure of the
ideal solution?
A. 86 torr
B. 220 torr
C. 305 torr
D. 661 torr
SD-CP-Sc-62
Hydrogen bonding will not exist between
molecules of which substance below?
A. H2
B. H2O
C. HF
D. NH3
SD-CP-Sc-63
Which of the following would indicate the
strongest intermolecular forces in a liquid?
A. low boiling point
B. high boiling point
C. low electrical resistance
D. high electrical resistance
SD-CP-Sc-64
Compared to intramolecular forces, the
strength of intermolecular forces is
__________.
A. substantially greater
B. slightly greater
C. slightly less
D. substantially less
SD-CP-Sc-65
The strength of dipole-dipole attractions
___________.
A. increases with the size of molecules
B. is greater than other intermolecular
forces
C. is greater than intramolecular forces
D. is the same for all types of substances
SD-CP-Sc-66
Which of the following sulfides is soluble in
water?
A. Ammonium sulfide
B. Iron (II) sulfide
C. Vanadium sulfide
D. Silicon disulfide
SD-CP-Sc-67
The freezing point of an aqueous solution that
contains a nonelectrolyte is -8.0°C. What is the
molal concentration of the solution?
Kfp for water is 1.86°C/molal
A. 1.86 m
B. 4.3 m
C. 0.23 m
D. 14.8 m
SD-CP-Sc-68
Comparing the freezing point depression for a solution
of an electrolyte that dissociates into a 1+ and a 1- ion
with the freezing point depression for an equally
concentrated solution of an electrolyte that dissociates
into a 3+ and a 3- ion, the freezing point depression for
the 3+ ion and 3- ion solution will be _________.
A. the same
B. slightly less
C. much less
D. much greater
SD-CP-Sc-69
What is the molarity of a solution of NaOH
(MM = 40.0 g/mol) that contains 2.0 g of
NaOH in 250.0 mL of solution?
A. 0.08 M
B. 0.20 M
C. 0.32 M
D. 2.0 M
SD-CP-Sc-70
How many grams of solute are
contained in 35.0 g of a 4.0% solution
of sugar?
A. 0.14 g
B. 0.40 g
C. 1.4 g
D. not enough information given to solve the problem
SD-CP-Sc-71
If 2.9 g of HCl is dissolved in enough water
to make 350 mL of solution, what is the
molarity of the solution?
A. 0.23 M
B. 2.3 M
C. 3.3 M
D. 24.3 M
SD-CP-Sc-72
Sulfur dioxide is a contaminant in air which can
result from burning coal in power plants to
produce electricity. A level of SO2 of greater
than 100 ppm is considered life-threatening.
What is this amount expressed as a percentage?
A. 0.01%
B. 0.10%
C. 0.001%
D. 0.0001%
SD-CP-Sc-73
The graph below shows the vapor pressure of two
volatile liquids A and B that form an ideal solution.
Line A represents _________.
A. partial vapor pressure Pa
B. partial vapor pressure Pb
C. total vapor pressure Pt
D. none of the above
End of Science Round
2014 Senior Super Bowl Area Contest
April 22, 2014
SD Science Coaches Practice Answer Key
1. A
2. B
3. C
4. D
5. A
6. C
7. B
8. B
9. B
10. A
11. D
12. D
13. C
14. B
15. A
16. D
17. D
18. A
19. D
20. C
21. A
22. D
23. C
24. B
25. A
26. D
27. D
28. A
29. B
30. C
31. B
32. C
33. D
34. A
35. C
36. A
37. B
38. D
39. C
40. A
41. D
42. A
43. A
44. B
45. A
46. C
47. B
48. D
49. D
50. B
51. D
52. A
53. A
54. D
55. C
56. C
57. A
58. D
59. A
60. D
61. C
62. A
63. B
64. D
65. A
66. A
67. B
68. B
69. B
70. C
71. A
72. A
73. C