MS Sample Set 15, Round 6 from NSB
Scientists at Fermi National Accelerator Lab are studying what substance that is thought to be the reason that the expansion of the universe is accelerating?
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Scientists supported by the Department of Energy are studying matter whose properties can be described using the Dirac equation. In that sense, this matter is similar to which of the following elementary particles? W) Photon X) Up quark Y) Gluon Z) W boson
W: W) Photon
X: X) Up quark
Y: Y) Gluon
Z: Z) W boson
Answer: X) X) Up quark
Root nodules are commonly found in legumes. Which of the following types of plants is an example of a legume? W) Pineapple X) Tomato Y) Maple Z) Soybean
W: W) Pineapple
X: X) Tomato
Y: Y) Maple
Z: Z) Soybean
Answer: Z) Z) Soybean
Base substitutions that occur in coding regions that result in the change from one amino acid to another in the resulting protein are referred to as what type of mutation? W) Silent X) Nonsense Y) Missense Z) Insertion
W: W) Silent
X: X) Nonsense
Y: Y) Missense
Z: Z) Insertion
Answer: Y) Y) Missense
What is the second-smallest positive multiple of 13 with at least three digits?
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Find the y-coordinates of all points of intersection of the parabola y = x² – 2x – 15 and the line y = 2x – 3.
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Jan tosses a football to Nick by exerting a force on the ball with her arm. According to Newton’s Third Law, what is the reaction force that opposes Jan’s exertion? W) Jan’s arm exerts a force on her body X) The football exerts a force on Jan’s arm Y) The football exerts a force on Nick’s arm when he catches it Z) Nick’s arm exerts a force on his body when he catches it
W: W) Jan’s arm exerts a force on her body
X: X) The football exerts a force on Jan’s arm
Y: Y) The football exerts a force on Nick’s arm when he catches it
Z: Z) Nick’s arm exerts a force on his body when he catches it
Answer: X) X) The football exerts a force on Jan’s arm
Rank the following three objects in terms of increasing de Broglie wavelength:
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Which of the following layers of the Sun has the lowest density? W) Chromosphere X) Corona Y) Photosphere Z) Radiation zone
W: W) Chromosphere
X: X) Corona
Y: Y) Photosphere
Z: Z) Radiation zone
Answer: X) X) Corona
What type of star is thought to be the progenitor star of Type IA supernovae?
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Lawrence Berkeley National Lab scientists are studying the ability of a pill, originally designed to treat radiation poisoning, to remove MRI contrast dyes from the body. Which of the following lanthanide elements used in these dyes are they hoping to remove? W) Lead X) Gadolinium Y) Plutonium Z) Uranium
W: W) Lead
X: X) Gadolinium
Y: Y) Plutonium
Z: Z) Uranium
Answer: X) X) Gadolinium
Identify all of the following three features that are advantages of lithium-ion batteries that do not contain cobalt: 1) Higher energy density; 2) Cheaper raw materials; 3) They are primary cells.
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What peripheral nervous system structures contain neuronal cell bodies and satellite glia, and are often considered nerve relays?
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Mycorrhizae is an example of a mutualistic relationship between organisms from what two kingdoms?
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For the function f(x) = –6x + 5, what is f⁻¹(–43)?
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How many positive integers less than 1,000 can be formed using some or all of the digits 1, 2, 3, 4, and 5, at most once each?
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Organic compounds known as amines are so-named because they possess what element aside from carbon and hydrogen?
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When making coffee, Rishi heats up 500 g of water from 25 °C to 90 °C. In kilocalories, how much energy does this take?
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The North American Plate and the Eurasia Plate meet at what specific seafloor feature that passes through Iceland?
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Just before a lightning strike, how is charge distributed in a rain cloud? W) Negative at the base and top, positive in the center X) Positive at the base and top, negative in the center Y) Negative at the base, positive at the top Z) Positive at the base, negative at the top
W: W) Negative at the base and top, positive in the center
X: X) Positive at the base and top, negative in the center
Y: Y) Negative at the base, positive at the top
Z: Z) Positive at the base, negative at the top
Answer: Y) Y) Negative at the base, positive at the top
Scientists at SLAC National Accelerator Lab are studying the oxygen-evolving complex. What molecule does this complex break down to form oxygen?
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Scientists at Argonne National Lab are refining the SIR model. This model is meant to predict what? W) Annual rainfall X) Disease spread Y) Local wind speed Z) Stellar evolution rate
W: W) Annual rainfall
X: X) Disease spread
Y: Y) Local wind speed
Z: Z) Stellar evolution rate
Answer: X) X) Disease spread
When basophils react to a foreign substance, they secrete a signaling molecule that causes blood vessels to dilate and leak fluid at the site of inflammation. What is this signaling molecule? W) Antigen X) Histamine Y) Lumen Z) Pepsin
W: W) Antigen
X: X) Histamine
Y: Y) Lumen
Z: Z) Pepsin
Answer: X) X) Histamine
Which of the following proteins is the most highly conserved across all living organisms? W) Insulin X) RNA polymerase Y) P53 Z) Hemoglobin
W: W) Insulin
X: X) RNA polymerase
Y: Y) P53
Z: Z) Hemoglobin
Answer: X) X) RNA polymerase
Two triangles have identical corresponding angle measures. The larger triangle has sides of lengths 9, 11, and 16. The smaller triangle has smallest side of length 5. What is the perimeter of the smaller triangle?
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What is the polynomial in the variable x with least degree, integer coefficients, and leading coefficient one that has –3 + √7 as a zero?
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An example of a fission reaction is the addition of a neutron to uranium-235, producing krypton-92, three neutrons, and an isotope of barium. What is the mass number of the barium isotope?
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Identify all of the following three waves that are transverse waves: 1) Light; 2) P waves generated by earthquakes; 3) Sound.
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What type of ocean wave has a typical period of approximately one hundredth of a second? W) Tsunami X) Tide Y) Capillary wave Z) Seiche
W: W) Tsunami
X: X) Tide
Y: Y) Capillary wave
Z: Z) Seiche
Answer: Y) Y) Capillary wave
Swelling soils increase in volume when they are wet due to the presence of what group of minerals?
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