MS Sample Set 15, Round 9 from NSB
The product of force on an object and the time interval over which that force is applied results in what physical quantity?
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Identify all of the following three factors that, according to the kinetic molecular theory of gases, increase as a gas’s temperature increases at constant volume: 1) Pressure; 2) Kinetic energy; 3) Speed of the gas particles.
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What glacier features are elongated hills composed of glacial tills and indicate the direction of glacial advancement?
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Identify all of the following three mineral groups that typically exhibit cleavage planes that meet at approximately 120 and 60-degree angles: 1) Pyroxene; 2) Feldspars; 3) Amphiboles.
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Scientists at Oak Ridge National Lab are studying materials in which electrons do not flow freely. What is the term for these materials?
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Scientists at Pacific Northwest National Lab are studying coronavirus, which contains what type of genome? W) dsRNA X) ssRNA Y) dsDNA Z) ssDNA
W: W) dsRNA
X: X) ssRNA
Y: Y) dsDNA
Z: Z) ssDNA
Answer: X) X) ssRNA
What phase of the cell cycle is comprised of the three subphases G1, S, and G2?
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The primary pacemaker of the human heart is found in the wall of which of its chambers?
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What is the coefficient of the \(bc\) term in the trinomial expansion of \((7a + 3b - 6c)^2\)?
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How many 9-digit positive integers use each of the digits 1 through 9 exactly once, and alternate even and odd digits?
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How many lone pairs are present in the Lewis dot structure of a single water molecule?
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Rank the following three metal oxides in order of increasing exothermicity of formation: 1) Silver; 2) Lead; 3) Magnesium.
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The proton-proton chain in the Sun produces positrons. With what particle do these positrons interact to produce light?
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Identify all of the following three characteristics that typically describe captured moons: 1) Inclined orbit; 2) Prograde orbit; 3) Orbit close to planet.
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Scientists at Lawrence Berkeley National Lab are making artificial mimics of the Y-shaped immune system proteins that the body uses to neutralize pathogens. What is the term for these proteins?
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Researchers at Pacific Northwest National Lab are using neural networks to design energy-efficient buildings. In their neural networks, each node has a state of either 0 or 1. What biological phenomenon is the 1 state meant to represent?
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Which of the following compounds stimulates the generation of red blood cells, and is banned by most major athletic organizations? W) Angiotensin X) Hemoglobin Y) Erythropoietin Z) Corticosteroids
W: W) Angiotensin
X: X) Hemoglobin
Y: Y) Erythropoietin
Z: Z) Corticosteroids
Answer: Y) Y) Erythropoietin
Andrew synthesizes some bacteriophage viral particles that contain biomolecules labeled with both phosphorus-32 and sulfur-35. He then infects some unlabeled bacteria with the viral particles. Which of the following observations would he NOT be able to make after the infection? W) The original viral particles still contain sulfur-35-labeled molecules X) The bacteria contain sulfur-35-labeled molecules Y) The bacteria contain phosphorus-32-labeled molecules Z) If the bacteria are allowed to produce more viral particles, they will contain phosphorus-32-labeled molecules
W: W) The original viral particles still contain sulfur-35-labeled molecules
X: X) The bacteria contain sulfur-35-labeled molecules
Y: Y) The bacteria contain phosphorus-32-labeled molecules
Z: Z) If the bacteria are allowed to produce more viral particles, they will contain phosphorus-32-labeled molecules
Answer: X) X) The bacteria contain sulfur-35-labeled molecules
If a number is decreased by 30%, by what percent is its square decreased?
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How many numbers from 1 to 100, inclusive, are divisible by neither 6 nor 7?
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To the nearest whole degree Celsius, what temperature corresponds to the triple point of water?
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The following three objects with equal mass and radius are placed on an inclined plane in such a way that they will roll down the plane. Rank them by increasing acceleration as they roll down the incline: 1) Hoop; 2) Solid cylinder; 3) Solid sphere.
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The 21-centimeter radiation line originates from what element?
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In 1979, scientists discovered that two images of the same quasar were visible in the sky, separated by a few arc-seconds. What phenomenon produced this observation?
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Scientists supported by the Department of Energy are studying electron transfer reactions in organic molecules. These molecules are typically used as what? W) Molecular wires X) Catalysts Y) Deposition substrates Z) Polymers
W: W) Molecular wires
X: X) Catalysts
Y: Y) Deposition substrates
Z: Z) Polymers
Answer: W) W) Molecular wires
Scientists at Brookhaven National Lab are studying gases composed of bosons. Which of the following is an example of a boson? W) Proton X) Neutron Y) Photon Z) Up quark
W: W) Proton
X: X) Neutron
Y: Y) Photon
Z: Z) Up quark
Answer: Y) Y) Photon
Ubiquitin tags can be used to direct proteins to a proteasome. What happens to the protein there? W) It is sent to the nucleus X) It is degraded Y) It is secreted Z) It is post-translationally modified
W: W) It is sent to the nucleus
X: X) It is degraded
Y: Y) It is secreted
Z: Z) It is post-translationally modified
Answer: X) X) It is degraded
Prematurely-born mammals have a difficult time breathing. This is because they lack what substance that coats mature lung alveoli to reduce surface tension?
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A prism with 26 faces has how many edges?
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A Fibonacci-type sequence has the property that every term starting with the third is the sum of the previous two terms. If the seventh term is 50 and the tenth term is 212, what is the fifth term?
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