MS Sample Set 14, Round 16 from NSB
The visible stars in the Milky Way galaxy do not orbit the center of the galaxy in a Keplerian fashion. This is likely due to the galaxy being surrounded by a halo of what?
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Identify all of the following three statements that are true regarding the asteroid belt: 1) The inner edge contains mostly C-type asteroids; 2) The outer edge contains mostly C-type asteroids; 3) The asteroid belt likely did not accrete into a single planet due to the tidal forces of Mars.
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Besides itself, what is the largest integer factor of 425?
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A pyramid with 86 edges has how many faces?
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Perovskites are a class of minerals with the general formula ABO₃, where A is usually an alkaline earth element and B is a d-block transition metal. Which of the following elements could NOT be found as B in this formula? W) Cesium X) Titanium Y) Zirconium Z) Vanadium
W: W) Cesium
X: X) Titanium
Y: Y) Zirconium
Z: Z) Vanadium
Answer: W) W) Cesium
When trimethylamine is excited with 200 nm light in photo-dissociation spectroscopy, which of the following atomic orbitals is the excited electron most likely to occupy? W) 6p X) 1s Y) 3p Z) 2p
W: W) 6p
X: X) 1s
Y: Y) 3p
Z: Z) 2p
Answer: Y) Y) 3p
Which set of terms best describe the headwaters region of a stream? W) High gradient, wide floodplain, meanders, large cross-section, high discharge X) Low gradient, wide floodplain, meanders, large cross-section, lower discharge Y) Low gradient, wide floodplain, no meanders, small cross-section, high discharge Z) High gradient, no floodplain, no meanders, small cross-section, lower discharge
W: W) High gradient, wide floodplain, meanders, large cross-section, high discharge
X: X) Low gradient, wide floodplain, meanders, large cross-section, lower discharge
Y: Y) Low gradient, wide floodplain, no meanders, small cross-section, high discharge
Z: Z) High gradient, no floodplain, no meanders, small cross-section, lower discharge
Answer: Z) Z) High gradient, no floodplain, no meanders, small cross-section, lower discharge
Order the following three stages of coral reef development around a subsiding volcanic island in chronological order: 1) Atoll; 2) Fringing reef; 3) Barrier reef.
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What physical quantity measures the product of a force on an object and the object’s displacement in the direction the force was applied?
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A screeching hawk is flying directly toward you with a speed of 40 m/s. What is the ratio of the frequency of the screech you hear to its original frequency?
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How many types of cone cells are in the human eye?
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Identify all of the following three statements that are true regarding sugars: 1) Glucose, fructose, and galactose are structural isomers; 2) Glucose, fructose, and galactose are hexose sugars; 3) Lactose is a disaccharide composed of glucose and galactose.
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Which of the following is a consequence of the r-process? W) A star transitions onto the main sequence X) A star is no longer capable of hydrogen fusion Y) A protostar is formed Z) Heavy elements are made
W: W) A star transitions onto the main sequence
X: X) A star is no longer capable of hydrogen fusion
Y: Y) A protostar is formed
Z: Z) Heavy elements are made
Answer: Z) Z) Heavy elements are made
Order the following four natural satellites in terms of increasing distance from the Sun: 1) Europa; 2) Triton; 3) Phobos; 4) Titan.
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An item is originally priced at \$20. Discounts are based on the current marked price. In two consecutive sales, the price is reduced by 20%, then 40%. In dollars and cents, what is the final price of the item?
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Sixty students at the Science Academy play tennis or soccer. If 12 play both and 31 play tennis, how many play soccer but not tennis?
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During the light-dependent reactions of photosynthesis, absorption of light drives a series of electron transfer events resulting in the production of ATP and what reduced energy-carrying product?
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Place the following three locations the blood will pass through in chronological order as it enters the human heart from the vena cava: 1) Right ventricle; 2) Pulmonary vein; 3) Left atrium.
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Scientists at Oak Ridge National Lab are studying nightshades. Which of the following chemicals is a characteristic product of certain nightshades? W) Capsaicin X) Taxol Y) Cisplatin Z) Penicillin
W: W) Capsaicin
X: X) Taxol
Y: Y) Cisplatin
Z: Z) Penicillin
Answer: W) W) Capsaicin
Scientists at the Joint Genome Institute are studying the compounds made by the eucalyptus tree. Identify all of the following three statements that are true of the eucalyptus: 1) It is an angiosperm; 2) It is a dicot; 3) It produces oil.
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In order, four points on a circle are named A, B, C, and D. If ∠BAC measures 23° and ∠CAD measures 34°, what is the degree measure of arc BCD?
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A 5-digit positive integer has 5 different digits and is divisible by 9. What is the smallest such number?
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Many enzymes in signaling cascades are called kinases, because they move what inorganic group usually from ATP onto substrates?
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Which of the following best explains why estrogen in the blood is typically found attached to globular proteins? W) It is not water-soluble X) It needs to be transported in an inactive form Y) It is quickly broken down when unbound Z) It is produced attached to these proteins
W: W) It is not water-soluble
X: X) It needs to be transported in an inactive form
Y: Y) It is quickly broken down when unbound
Z: Z) It is produced attached to these proteins
Answer: W) W) It is not water-soluble
What phase of matter is most likely to have atoms located at fixed distances away from each other?
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Identify all of the following diatomic species that contain covalent bonds: 1) Potassium chloride; 2) Molecular chlorine; 3) Sodium fluoride.
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Calculate the sum of the following three fractions: $\displaystyle \frac{1}{5}$, $\displaystyle \frac{1}{6}$, and $\displaystyle \frac{1}{30}$.
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What is the polynomial with least degree, integer coefficients, and leading coefficient one that has $5 - \sqrt{7}$ as a zero?
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Researchers at SLAC National Accelerator Facility are using the Linac Coherent Light Source to demagnetize a magnet extremely quickly. Which of the following processes would also likely demagnetize a magnet? W) Attaching the magnet to a 9-volt battery X) Running an alternating current through the magnet Y) Submerging the magnet in aqueous solution Z) Cooling the magnet with liquid nitrogen
W: W) Attaching the magnet to a 9-volt battery
X: X) Running an alternating current through the magnet
Y: Y) Submerging the magnet in aqueous solution
Z: Z) Cooling the magnet with liquid nitrogen
Answer: X) X) Running an alternating current through the magnet
Scientists at Lawrence Berkeley National Lab are developing new polymerizable linkages to produce plastics that can be recycled. What type of linkage is present in proteins? W) Polycarbonate X) Polyester Y) Polyamide Z) Polystyrene
W: W) Polycarbonate
X: X) Polyester
Y: Y) Polyamide
Z: Z) Polystyrene
Answer: Y) Y) Polyamide
Vince pushes a block horizontally by applying a 17-newton force, causing it to move 3 meters. In joules, how much work did he do on the block?
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Maggie has two charges of unknown sign and magnitude. She brings them together and finds that they repel each other. Identify all of the following three statements that are reasonable conclusions based on this observation: 1) The charges are both negative; 2) The magnitude of the charges is the same; 3) The charges have opposite signs.
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Which of the following genetic disorders results from a dominant allele? W) Huntington’s disease X) Sickle-cell disease Y) Hemophilia A Z) Tay-Sachs disease
W: W) Huntington’s disease
X: X) Sickle-cell disease
Y: Y) Hemophilia A
Z: Z) Tay-Sachs disease
Answer: W) W) Huntington’s disease
Abby’s biological parents have type O blood and type AB blood. Identify all of the following three blood types that Abby could have: 1) O; 2) A; 3) AB.
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Identify all of the following three pieces of evidence showing that structural uplift occurred: 1) Glacial till deposits in a drumlin; 2) The presence of tektites at the surface; 3) River delta deposits.
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The Cambrian and the Jurassic are examples of what sub-division of geologic time?
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What is the constant term in the expansion of $(x + 5)^2 (x - 1)^3$?
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A set of 11 points has exactly 5 that are collinear. Otherwise, no three points in the set are collinear. How many lines contain at least two of the 11 points?
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What is the solvent in brass?
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A unit of voltage multiplied by a unit of charge results in a unit that measures which of the following quantities? W) Energy X) Force Y) Power Z) Current
W: W) Energy
X: X) Force
Y: Y) Power
Z: Z) Current
Answer: W) W) Energy
Which of the following locations functions as the thermostat of the human body? W) Hypothalamus X) Thalamus Y) Pons Z) Medulla oblongata
W: W) Hypothalamus
X: X) Thalamus
Y: Y) Pons
Z: Z) Medulla oblongata
Answer: W) W) Hypothalamus
Consider the cross of two plants, one of which has red flowers and one of which has white flowers. Given that 50% of their offspring have white flowers and 50% have red flowers and assuming complete dominance and independent assortment, identify all of the following three statements that can be concluded from this cross: 1) The red flower trait is dominant to the white flower trait; 2) One of the plants is homozygous for the trait that it possesses; 3) The white-flowered plant is heterozygous for the trait that it possesses.
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Which of the following Earth-based measurements in parsecs is closest to the distance limit of stellar parallax? W) 1 X) 100 Y) 1,000 Z) 10,000
W: W) 1
X: X) 100
Y: Y) 1,000
Z: Z) 10,000
Answer: X) X) 100
Place the following three types of stars in chronological order of the Sun’s lifecycle: 1) Black dwarf; 2) White dwarf; 3) Red giant.
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How many valence electrons does the sodium plus ion possess?
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What is the value of 86 °F in degrees Celsius?
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