MS Sample Set 12, Round 8 from NSB
The backwards recoil of firing an air-rifle is best attributable to the conservation of what quantity?
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If the fundamental frequency of a guitar string is 260 hertz, what is the frequency, in hertz, of the second harmonic?
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Which of the following best explains why the moon appears red during a total lunar eclipse? W) Reflection off other planetary surfaces X) Scattering by dust in lunar orbit Y) Refraction through the Earth’s atmosphere Z) Blackbody emission of light
W: W) Reflection off other planetary surfaces
X: X) Scattering by dust in lunar orbit
Y: Y) Refraction through the Earth’s atmosphere
Z: Z) Blackbody emission of light
Answer: Y) Y) Refraction through the Earth’s atmosphere
Identify all of the following three models of the solar system that are geocentric: 1) Copernican; 2) Ptolemaic; 3) Tychonic.
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The temperature at 9 AM was 67 degrees Fahrenheit. If the temperature rose 3 degrees per hour, what was the temperature, in degrees Fahrenheit, at 3 PM?
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What is 16/35 minus 12/25?
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DOE researchers recently demonstrated the creation of a 2D transistor by etching molybdenum selenide into a pre-existing sheet of a 2D conductor. What is the common name of the conductor they used?
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SLAC scientists shined high-energy X-ray laser pulses into various solid samples, resulting in the ejection of high-energy electrons. These ultra-high intensity pulses last for only 1 femtosecond. Expressing your answer as 10 raised to a power, how many femtoseconds are in one second?
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What domain of life is the kingdom Animalia classified under?
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A hospital technician centrifuges a vial of blood and notices a very thin milky white layer between two large layers. What can be found in these layers? W) Plasma X) Red blood cells Y) Bacteria Z) Leukocytes
W: W) Plasma
X: X) Red blood cells
Y: Y) Bacteria
Z: Z) Leukocytes
Answer: Z) Z) Leukocytes
Which of these minerals would scratch all of the others? W) Fluorite X) Orthoclase Y) Gypsum Z) Calcite
W: W) Fluorite
X: X) Orthoclase
Y: Y) Gypsum
Z: Z) Calcite
Answer: X) X) Orthoclase
What is the term for the maximum slope angle that a pile of loose sediment can sustain without falling or rolling downward? W) Interior angle X) Exterior angle Y) Angle of consolidation Z) Angle of repose
W: W) Interior angle
X: X) Exterior angle
Y: Y) Angle of consolidation
Z: Z) Angle of repose
Answer: Z) Z) Angle of repose
Researchers at Brookhaven National Lab, through the Daya Bay collaboration, are studying the particles that carry away about 5 percent of the energy released when uranium atoms in a fission reactor split. What particles are they studying?
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DOE scientists have developed a method to visualize electric fields with a camera that uses a one-atom-thick semiconductor as a sensor. This semiconductor is composed of what element?
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What is the multiplicative inverse of –3/2?
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To the nearest whole number, what temperature in degrees Celsius is equivalent to 125 degrees Fahrenheit?
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Which of the following is an example of diagenesis? W) Heating and compaction of sediment X) Chemical conversion of dinitrogen gas to fixed nitrogen Y) Reawakening of a dormant volcano Z) Formation of a new iceberg
W: W) Heating and compaction of sediment
X: X) Chemical conversion of dinitrogen gas to fixed nitrogen
Y: Y) Reawakening of a dormant volcano
Z: Z) Formation of a new iceberg
Answer: W) W) Heating and compaction of sediment
By definition, mafic rocks and minerals are rich in what two elements?
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In what organelle do the reactions of the citric acid cycle occur?
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A newborn baby was found to have 47 chromosomes. What is the term for this disorder? W) Chromosomal inversion X) Chromosomal deletion Y) Aneuploidy Z) Chromosomal translocation
W: W) Chromosomal inversion
X: X) Chromosomal deletion
Y: Y) Aneuploidy
Z: Z) Chromosomal translocation
Answer: Y) Y) Aneuploidy
Analysts at Los Alamos National Laboratory have shown how to minimize environmental impacts by refracturing shale gas wells. Which of the following is not an environmental benefit of refracturing? W) Fewer wells need to be drilled X) Natural gas is more efficiently removed from each well Y) Carbon dioxide is deposited in a form of carbon sequestration Z) Natural gas does not release harmful byproducts
W: W) Fewer wells need to be drilled
X: X) Natural gas is more efficiently removed from each well
Y: Y) Carbon dioxide is deposited in a form of carbon sequestration
Z: Z) Natural gas does not release harmful byproducts
Answer: Z) Z) Natural gas does not release harmful byproducts
At the Fermilab Tevatron, one of the most common types of collisions resulting in the creation of top quarks resulted in the creation of a top-quark-anti-top-quark pair. What fundamental force mediates the creation of this quark-anti-quark pair?
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Hydrocarbons are primarily composed of what two elements?
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How many molecules of hydrogen gas are generated when 2 molecules of water are decomposed to form hydrogen gas and oxygen gas?
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Expressing your answer to the nearest hundred, find the following sum: 733 + 840 + 362.
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What is the area of an equilateral triangle with sides of length 22?
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A biologist creates an artificial phospholipid bilayer that contains no transmembrane proteins. Identify all of the following three elements that can be encountered exactly halfway between the two layers: 1) Phosphorous; 2) Oxygen; 3) Hydrogen.
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What molecule is the carbon source in the Calvin cycle?
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How many lone pairs of electrons are present in the Lewis diagram of a water molecule?
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Identify all of the following three statements that are true for a gas-containing cylinder as the piston is depressed: 1) The volume decreases; 2) The gas particles collide more often; 3) The pressure decreases.
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What is the average of the following 3 numbers? 6, 8, 13
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A right triangle has leg lengths 2 and 5. A similar triangle has its shorter leg of length 6. To the nearest integer, what is the length of the hypotenuse in the larger triangle?
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In the cell membrane, which of the four biological macromolecule classes can be found as hormones and are also used to store energy?
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What type of mammalian muscle is under voluntary control? W) Smooth muscle X) Skeletal muscle Y) Cardiac muscle Z) Rough muscle
W: W) Smooth muscle
X: X) Skeletal muscle
Y: Y) Cardiac muscle
Z: Z) Rough muscle
Answer: X) X) Skeletal muscle
Which of the following is the nearest large spiral galaxy to Earth? W) Triangulum Galaxy X) Large Magellanic Cloud Y) Sombrero Galaxy Z) Andromeda Galaxy
W: W) Triangulum Galaxy
X: X) Large Magellanic Cloud
Y: Y) Sombrero Galaxy
Z: Z) Andromeda Galaxy
Answer: Z) Z) Andromeda Galaxy
Identify all of the following three stars that are part of the main sequence: 1) The Sun; 2) Sirius; 3) Proxima Centauri.
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What is the degree measure of an angle that is the supplement of a 43-degree angle?
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Solve the following equation for x over the negative real numbers: $x^4 + 4x^2 - 45 = 0$
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When making homemade ice cream, salt is added to crushed ice surrounding the cream mixture. Which of the following does NOT occur when the salt is added to the ice? W) The freezing temperature of the cream mixture is lowered X) The freezing temperature of the ice is lowered Y) The temperature of the system is lowered Z) Some of the ice is melted
W: W) The freezing temperature of the cream mixture is lowered
X: X) The freezing temperature of the ice is lowered
Y: Y) The temperature of the system is lowered
Z: Z) Some of the ice is melted
Answer: W) W) The freezing temperature of the cream mixture is lowered
Identify all of the following three actions that can increase the rate of a reaction: 1) Increasing the temperature; 2) Decreasing the concentration of reactants; 3) Increasing the surface area of the reactants.
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The "Ring of Fire" occurs due to subduction of oceanic plates around the border of which ocean basin?
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If you are living at 30 degrees North latitude, in what two months will you experience days and nights of equal length?
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Which of the following does not demonstrate external radial symmetry? W) Sea anemones X) Jellyfish Y) Coral Z) Eels
W: W) Sea anemones
X: X) Jellyfish
Y: Y) Coral
Z: Z) Eels
Answer: Z) Z) Eels
What organs do spiders use to spin silk?
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What physical property of a sound wave corresponds to its volume?
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Identify all of the following three statements that are true of work and machines: 1) Power is a measure of the rate at which work is done; 2) A wedge is a combination of inclined planes; 3) Mechanical advantage is always greater than or equal to one.
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