MS Sample Set 10, Round 15 from NSB
At a material’s melting point, what intrinsic quantity does NOT change as more heat energy is added to the system?
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If a photon has a wavelength of 300 nanometers, then, in scientific notation with one significant figure, what is its frequency in hertz?
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What element is currently the most promising nuclear fuel alternative to uranium due to its greater abundance and better resistance to proliferation? W) Thorium X) Protactinium [proh-tak-TIN-ee-um] Y) Neptunium Z) Plutonium
W: W) Thorium
X: X) Protactinium [proh-tak-TIN-ee-um]
Y: Y) Neptunium
Z: Z) Plutonium
Answer: W) W) Thorium
Identify all of the following three lightbulbs that have a filament that must be heated to create visible light: 1) Incandescent; 2) Compact fluorescent; 3) Halogen.
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What is the process that occurs when changes in allele frequencies are caused by random chance?
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Which of the following classifications would be inclusive of eucalyptus, cattails, duckweed and buttercups? W) Angiosperms X) Dicots Y) Monocots Z) Chlorophyta [klor-oh-FYE-tah]
W: W) Angiosperms
X: X) Dicots
Y: Y) Monocots
Z: Z) Chlorophyta [klor-oh-FYE-tah]
Answer: W) W) Angiosperms
What scientist was most responsible for the widespread adoption of antiseptics during surgical procedures? W) Edward Jenner X) Louis Pasteur Y) Joseph Lister Z) Alexander Fleming
W: W) Edward Jenner
X: X) Louis Pasteur
Y: Y) Joseph Lister
Z: Z) Alexander Fleming
Answer: Y) Y) Joseph Lister
To minimize exposure to histoplasmosis, soil samples should be which of the following? W) Collected from confirmed archeological sites X) Handled only in a fume hood Y) Inoculated prior to handling Z) Free of chicken, pigeon, or bat droppings
W: W) Collected from confirmed archeological sites
X: X) Handled only in a fume hood
Y: Y) Inoculated prior to handling
Z: Z) Free of chicken, pigeon, or bat droppings
Answer: Z) Z) Free of chicken, pigeon, or bat droppings
When a right triangular region is rotated about one of its legs, what solid is formed? W) Right circular cone X) Right circular cylinder Y) Right triangular pyramid Z) Right triangular prism
W: W) Right circular cone
X: X) Right circular cylinder
Y: Y) Right triangular pyramid
Z: Z) Right triangular prism
Answer: W) W) Right circular cone
What is the area of the triangular region formed by the lines with equations $x = 2$, $y = -1$, and $y = 2x + 1$?
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Which of the following processes happens at the slowest rate? W) Rise and fall of tides X) Uplift of mountains Y) Recycling of seawater Z) Regrowth of burnt vegetation
W: W) Rise and fall of tides
X: X) Uplift of mountains
Y: Y) Recycling of seawater
Z: Z) Regrowth of burnt vegetation
Answer: X) X) Uplift of mountains
Half Dome in Yosemite National Park is a portion of what type of massive granitic intrusive igneous structure?
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What type of coal has the highest carbon content? W) Lignite X) Bituminous Y) Anthracite Z) Peat
W: W) Lignite
X: X) Bituminous
Y: Y) Anthracite
Z: Z) Peat
Answer: Z) Z) Peat
Through which of the following parts of Earth’s interior would an S-wave NOT travel? W) Lithosphere X) Asthenosphere Y) Lower mantle Z) Outer core
W: W) Lithosphere
X: X) Asthenosphere
Y: Y) Lower mantle
Z: Z) Outer core
Answer: Z) Z) Outer core
Which of the following four processes is endothermic? W) Combustion of wood X) Explosion of TNT Y) Condensation of water Z) Melting of ice cubes
W: W) Combustion of wood
X: X) Explosion of TNT
Y: Y) Condensation of water
Z: Z) Melting of ice cubes
Answer: Z) Z) Melting of ice cubes
You double the length of a simple pendulum. By what factor does this multiply the period of the pendulum swing?
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When the slope of a line representing velocity over time is zero, acceleration is: W) Negative X) Positive Y) Infinite Z) Zero
W: W) Negative
X: X) Positive
Y: Y) Infinite
Z: Z) Zero
Answer: Z) Z) Zero
What is the name associated with the large explosion that occurred in Siberia in 1908, flattening 2000 square kilometers of forest?
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Convert two-six in base 8 to base 10.
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If a right triangular prism has all edges equal to 2, then, to the nearest integer, what is its total surface area?
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In mammals, in which of the following is the cochlea located? W) Trachea X) Spleen Y) Ear Z) Eye
W: W) Trachea
X: X) Spleen
Y: Y) Ear
Z: Z) Eye
Answer: Y) Y) Ear
Which of the following blood vessels carries oxygenated blood? W) Pulmonary vein X) Pulmonary trunk Y) Pulmonary artery Z) Superior vena cava
W: W) Pulmonary vein
X: X) Pulmonary trunk
Y: Y) Pulmonary artery
Z: Z) Superior vena cava
Answer: W) W) Pulmonary vein
Which of the following sources accounts for the largest fraction of consumed renewable energy in the US? W) Natural gas X) Biomass Y) Wind Z) Solar
W: W) Natural gas
X: X) Biomass
Y: Y) Wind
Z: Z) Solar
Answer: X) X) Biomass
Solar water heaters were popular in Florida and California from the 1920s until the mid-1950s. What low-cost fuel displaced solar to heat water in the 1950s?
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The circumstellar habitable zone, or “Goldilocks Zone,” refers to the range of distances from a star within which what substance can exist on an orbiting planet’s surface? W) Oxygen gas X) Liquid water Y) Liquid methane Z) Water ice
W: W) Oxygen gas
X: X) Liquid water
Y: Y) Liquid methane
Z: Z) Water ice
Answer: X) X) Liquid water
Which of the following is closest to the distance, in megaparsecs, from Earth to a galaxy that has an apparent radial velocity of 910 kilometers per second? W) 7 X) 10 Y) 13 Z) 16
W: W) 7
X: X) 10
Y: Y) 13
Z: Z) 16
Answer: Y) Y) 13
What is the least common multiple of the three quantities $6x$, $15x^3$, and $18x^3$?
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A flower bed is formed in the shape of a 135-degree sector of a circle of radius 8 feet. To the nearest foot, what is the perimeter of the flower bed?
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Pyrimidines are important components in nucleic acids, vitamins, drugs, and many other compounds. Which of the following nucleotide bases is NOT a pyrimidine? W) Adenine X) Cytosine Y) Thymine Z) Uracil
W: W) Adenine
X: X) Cytosine
Y: Y) Thymine
Z: Z) Uracil
Answer: W) W) Adenine
What is the name of the respiratory disease that is categorized by the inflammation of the mucus membrane? W) Asthma X) Bronchitis Y) Chronic obstructive pulmonary disease Z) Emphysema
W: W) Asthma
X: X) Bronchitis
Y: Y) Chronic obstructive pulmonary disease
Z: Z) Emphysema
Answer: X) X) Bronchitis
Which of the following is NOT a property of a base? W) Reacts with carbonates to form carbon dioxide X) Has a bitter taste Y) Turns litmus paper blue Z) Feels slippery
W: W) Reacts with carbonates to form carbon dioxide
X: X) Has a bitter taste
Y: Y) Turns litmus paper blue
Z: Z) Feels slippery
Answer: W) W) Reacts with carbonates to form carbon dioxide
A particle has a position defined by the equation $x = 6t^2 + 3t + 18$. What is the average velocity of the particle between $t = 2$ and $t = 5$?
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Which of the following are characteristics of a strong hypothesis? W) Simple and generic X) Complex and specific Y) Falsifiable and testable Z) Specific and provable
W: W) Simple and generic
X: X) Complex and specific
Y: Y) Falsifiable and testable
Z: Z) Specific and provable
Answer: Y) Y) Falsifiable and testable
Arrange the following four classifications of humans in order from least to most specific: 1) Hominidae; 2) Sapiens; 3) Chordata; 4) Primate.
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Which of the following is introduced at the cathode of a hydrogen fuel cell? W) Hydrogen X) Oxygen Y) Water Z) Protons
W: W) Hydrogen
X: X) Oxygen
Y: Y) Water
Z: Z) Protons
Answer: X) X) Oxygen
When at half of its flow capacity, the typical percent efficiency range of a modern wheel micro-hydropower system is which of the following? W) 10–30 X) 30–50 Y) 50–70 Z) 70–90
W: W) 10–30
X: X) 30–50
Y: Y) 50–70
Z: Z) 70–90
Answer: Y) Y) 50–70
What is 87 times 73?
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Using the origin as center, the point with coordinates (1, 2) is dilated by a factor of 2, and then the result is rotated by 90 degrees counterclockwise. What are the coordinates of the final image point?
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What is the endocrine gland that controls how the body regulates metabolism and is associated with Graves’ disease? W) Pineal gland X) Adrenal gland Y) Thyroid gland Z) Pituitary gland
W: W) Pineal gland
X: X) Adrenal gland
Y: Y) Thyroid gland
Z: Z) Pituitary gland
Answer: Y) Y) Thyroid gland
In plants, what cells secrete the waxy cuticle that protects plants from water loss? W) Epidermal cells X) Guard cells Y) Xylem cells Z) Phloem cells
W: W) Epidermal cells
X: X) Guard cells
Y: Y) Xylem cells
Z: Z) Phloem cells
Answer: W) W) Epidermal cells
What category of simple machine is responsible for both opening and joining the teeth in a zipper?
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What is the term for the broad group of metabolic reactions that break down large molecules into smaller ones and release energy?
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What anion is the most common form of dissolved inorganic carbon in the Earth’s oceans?
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What theoretical limit, approximately 1.4 solar masses, constrains the maximum mass that a white dwarf can attain?
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If an isotope with a mass number of 208 decays by one alpha particle, what is the mass number of the resulting atom?
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A circuit has 4 resistors of 3, 4, 5, and 6 ohms, respectively. The 6 ohm and 3 ohm resistors are in parallel and that combination is in series with the 4 ohm and 5 ohm resistors. If a 7-amp current is passed through the circuit, then, in volts, what is the potential difference across the circuit?
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