HS Sample Set 11, Round 2 from NSB
What type of drainage is created inside a landslide where there is no discernible pattern to the drainage? W) Annular X) Radial Y) Deranged Z) Trellis
W: W) Annular
X: X) Radial
Y: Y) Deranged
Z: Z) Trellis
Answer: Y) Y) Deranged
When large-scale space has zero curvature, its geometry is referred to by what adjective?
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Which of the following is the most abundant greenhouse gas in the atmosphere? W) Oxygen X) Water vapor Y) Carbon dioxide Z) Methane
W: W) Oxygen
X: X) Water vapor
Y: Y) Carbon dioxide
Z: Z) Methane
Answer: X) X) Water vapor
Until the close of the Industrial Revolution in the mid-1800's, what was the primary energy source for most of the world? W) Coal X) Wood Y) Dung Z) Natural gas
W: W) Coal
X: X) Wood
Y: Y) Dung
Z: Z) Natural gas
Answer: X) X) Wood
Which of the following is characterized by the lack of a distinct melting point? W) Sodium bicarbonate X) Quartz Y) Stainless steel of a known composition Z) Glass
W: W) Sodium bicarbonate
X: X) Quartz
Y: Y) Stainless steel of a known composition
Z: Z) Glass
Answer: Z) Z) Glass
What is the electric charge of the particle that carries the electromagnetic force?
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In degrees, which of the following is closest to the bond angle between hydrogen atoms in ammonia? W) 92 X) 108 Y) 123 Z) 180
W: W) 92
X: X) 108
Y: Y) 123
Z: Z) 180
Answer: X) X) 108
Which of the following is true of carbon-14? W) It undergoes beta decay to form nitrogen-14 X) It is generated in the atmosphere when protons strike nitrogen-14 atoms Y) It undergoes zero-order decay to carbon-13 Z) It is the predominant isotope of carbon found in fossil fuels
W: W) It undergoes beta decay to form nitrogen-14
X: X) It is generated in the atmosphere when protons strike nitrogen-14 atoms
Y: Y) It undergoes zero-order decay to carbon-13
Z: Z) It is the predominant isotope of carbon found in fossil fuels
Answer: W) W) It undergoes beta decay to form nitrogen-14
As x increases from –π to π, how does the value of cosine x change? W) always decreases X) always increases Y) decreases then increases Z) increases then decreases
W: W) always decreases
X: X) always increases
Y: Y) decreases then increases
Z: Z) increases then decreases
Answer: Z) Z) increases then decreases
If the fourth power of the complex number 2 + b i equals –64, what are the possible values of b?
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Which of the following types of bonds link monomers together in a polypeptide? W) Glycosidic X) Ester Y) Amide Z) Ether
W: W) Glycosidic
X: X) Ester
Y: Y) Amide
Z: Z) Ether
Answer: Y) Y) Amide
Which of the following statements is true of plant cells, but not animal cells? W) They can exhibit polyploidy X) They use a cell plate to divide sister cells in cytokinesis Y) They use channels to allow transfer of ions between cells Z) They have specialized organelles that likely evolved through endosymbiosis
W: W) They can exhibit polyploidy
X: X) They use a cell plate to divide sister cells in cytokinesis
Y: Y) They use channels to allow transfer of ions between cells
Z: Z) They have specialized organelles that likely evolved through endosymbiosis
Answer: X) X) They use a cell plate to divide sister cells in cytokinesis
Which of the following compounds is INSOLUBLE in water? W) Copper(I) chloride X) Ammonium chromate Y) Sodium silicate Z) Strontium chloride
W: W) Copper(I) chloride
X: X) Ammonium chromate
Y: Y) Sodium silicate
Z: Z) Strontium chloride
Answer: W) W) Copper(I) chloride
Consider a metal with atomic radius 1 Å, which crystallizes in a conventional fcc unit cell. To one decimal place and in angstroms, what is the unit cell edge length of the fcc lattice?
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The thumb's opposability can be attributed to what type of synovial joint? W) Pivot joint X) Saddle joint Y) Hinge joint Z) Condyloid joint
W: W) Pivot joint
X: X) Saddle joint
Y: Y) Hinge joint
Z: Z) Condyloid joint
Answer: X) X) Saddle joint
Oswald Avery found that an "infectious principle" could be transferred from dead, virulent streptococcus bacteria to living, avirulent bacteria. Which of the following is NOT true of this infectious principle? W) This material can be separated from protein in an ultracentrifuge X) RNA-digesting enzymes have no effect on the activity of this material Y) Performing a hydrophobic extraction removes the material from water Z) DNAse destroys all activity of this material
W: W) This material can be separated from protein in an ultracentrifuge
X: X) RNA-digesting enzymes have no effect on the activity of this material
Y: Y) Performing a hydrophobic extraction removes the material from water
Z: Z) DNAse destroys all activity of this material
Answer: Y) Y) Performing a hydrophobic extraction removes the material from water
What quantum mechanical principle states that no two fermions can possess the same quantum numbers?
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A sample of an ideal gas has a volume of 1 m³ at standard temperature and pressure. Which of the following is closest to the number of molecules in the sample? W) 2.5 × 10²⁴ X) 2.7 × 10²⁵ Y) 3.0 × 10²⁵ Z) 3.7 × 10²⁵
W: W) 2.5 × 10²⁴
X: X) 2.7 × 10²⁵
Y: Y) 3.0 × 10²⁵
Z: Z) 3.7 × 10²⁵
Answer: X) X) 2.7 × 10²⁵
In what logarithm base is the log of 1/27 equal to –3?
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Evaluate the integral from 0 to π/3 of sin(3x) dx.
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Which of the following is closest to the percent of the world's electricity that is supplied by nuclear power plants? W) 2 X) 15 Y) 30 Z) 50
W: W) 2
X: X) 15
Y: Y) 30
Z: Z) 50
Answer: X) X) 15
According to predictions by the Department of Energy, which of the following is closest to the percentage of U.S. gasoline and diesel use that could be replaced using biofuels from agricultural and forestry waste? W) 10 X) 30 Y) 70 Z) 99
W: W) 10
X: X) 30
Y: Y) 70
Z: Z) 99
Answer: X) X) 30
What type of high strain metamorphism occurs when two fault blocks rub together, breaking up rock during shearing? W) Hydrothermal X) Regional Y) Contact Z) Cataclastic
W: W) Hydrothermal
X: X) Regional
Y: Y) Contact
Z: Z) Cataclastic
Answer: Z) Z) Cataclastic
Our sun produces over 90% of its energy via what specific nuclear reaction chain?
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DOE researchers have been studying an allotrope of phosphorus with regard to electrical and thermal conductivity and have found that it demonstrates properties similar to graphite. What is the common name of this allotrope?
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One method of increasing contrast in neutron spallation experiments is by replacing some protium hydrogen atoms with what?
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Sea urchins and sand dollars belong to what phylum?
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Cryptonephridia can be found in the excretory systems of which of the following organisms? W) Desert rats X) Mealworm beetle larvae Y) Horned lizards Z) Goldfish
W: W) Desert rats
X: X) Mealworm beetle larvae
Y: Y) Horned lizards
Z: Z) Goldfish
Answer: X) X) Mealworm beetle larvae
The sum of two consecutive prime numbers is 30. What is the larger of the two numbers?
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A right circular cylinder has height 9 and diameter 14. What is its surface area?
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Which of the following statements concerning hydrogen bonding is NOT true? W) Amines can act as hydrogen bond donors and acceptors X) Ethers can form hydrogen bonds with each other Y) The salicylate anion is stabilized by intramolecular hydrogen bonding Z) Hydrogen sulfide cannot engage in hydrogen bonding
W: W) Amines can act as hydrogen bond donors and acceptors
X: X) Ethers can form hydrogen bonds with each other
Y: Y) The salicylate anion is stabilized by intramolecular hydrogen bonding
Z: Z) Hydrogen sulfide cannot engage in hydrogen bonding
Answer: X) X) Ethers can form hydrogen bonds with each other
Rank the following four atoms in order of increasing atomic radius: 1) Lithium; 2) Fluorine; 3) Sodium; 4) Chlorine.
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What type of elementary particle is thought not to exist in isolation because of color confinement?
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What adjective is used to describe the magnetic properties of materials that have unpaired electrons and tend to be attracted by external magnetic fields?
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Identify all of the following four rocks that would be classified as foliated metamorphic rocks: 1) Gneiss; 2) Marble; 3) Quartzite; 4) Phyllite.
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Which of the following is NOT an example of hydrogenous sediments? W) Manganese nodules X) Evaporites Y) Siliceous ooze Z) Metal sulfides
W: W) Manganese nodules
X: X) Evaporites
Y: Y) Siliceous ooze
Z: Z) Metal sulfides
Answer: Y) Y) Siliceous ooze
A standing wave is produced on a string fixed at both ends. What is the number of antinodes minus the number of nodes?
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A metal rod expands when heated. Identify all of the following four properties of the rod that would affect its fractional change in length: 1) Original length; 2) Mass; 3) Temperature change; 4) Material composition.
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What is the slope of a line perpendicular to the line with equation 2x + 3y = 7?
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Express the base-8 number five-zero-four in base 16.
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Rank the following three magma types from least to greatest in terms of silica content: 1) Andesitic; 2) Rhyolitic; 3) Basaltic.
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Which of the following best explains the dryness of the Atacama desert? W) It is located in the rain shadow of the Andes X) It is primarily located in the horse latitudes Y) Low pressure over the Pacific prevents raincloud formation Z) Warm Pacific waters carry away rain clouds
W: W) It is located in the rain shadow of the Andes
X: X) It is primarily located in the horse latitudes
Y: Y) Low pressure over the Pacific prevents raincloud formation
Z: Z) Warm Pacific waters carry away rain clouds
Answer: W) W) It is located in the rain shadow of the Andes
What is the IUPAC name of the smallest aromatic alcohol?
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Identify all of the following three statements that are characteristic of an SN2 reaction: 1) The reaction occurs with inversion; 2) The reaction does not occur with tertiary alkyl halides; 3) The reaction is faster with alkyl fluorides than with alkyl iodides.
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To what phylum do most mushrooms belong?
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Identify all of the following three organisms that are platyhelminths: 1) Octopus; 2) Hookworm; 3) Liver fluke.
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