MS Sample Set 14, Round 7 from NSB
Scientists at Brookhaven National Lab are studying hadrons that are made of a quark and an antiquark. What is the term for these hadrons?
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Scientists at Oak Ridge National Lab are using neutron spallation to study the structure of chocolate, which contains theobromine [theo-BROH-meen], also known as xantheose [ZAN-the-ohs]. Identify all of the following three elements that are in theobromine: 1) Nitrogen; 2) Carbon; 3) Bromine.
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Carl Seyfert [SEE-fert] is known for identifying six objects with unusually bright nuclei. What are these objects?
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What prominent August meteor shower is associated with the comet Swift-Tuttle? W) Lyrids [LIE-rids] X) Orionids [oh-RYE-oh-nids] Y) Geminids [GEM-in-id] Z) Perseids [PURSE-ee-ids]
W: W) Lyrids [LIE-rids]
X: X) Orionids [oh-RYE-oh-nids]
Y: Y) Geminids [GEM-in-id]
Z: Z) Perseids [PURSE-ee-ids]
Answer: Z) Z) Perseids [PURSE-ee-ids]
What is the term for an organism that possesses two copies of the same allele for a given gene?
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Alveoli [al-VEE-uh-lye] are small structures that are adapted for maximizing surface area for gas exchange. In what organ are they found?
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Researchers at the National Renewable Energy Lab are developing solar cells composed of a single element often obtained from sand. Of what element are these solar cells composed?
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Savannah River National Lab scientists are studying the diversity of macroinvertebrates in local streams. Which of the following animals is a macroinvertebrate they are studying? W) Lamprey X) Mayfly Y) Beaver trout Z) Bullfrog
W: W) Lamprey
X: X) Mayfly
Y: Y) Beaver trout
Z: Z) Bullfrog
Answer: X) X) Mayfly
What is the number of inches in 3.5 yards?
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What is $$\frac{11}{15} - \frac{19}{21}$$?
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A ray of light hits a mirror at an incidence angle of 30 degrees relative to the normal. In degrees, what is the angle of reflection relative to the normal?
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When a roller coaster executes a loop-de-loop, riders do not feel like they are falling out of the seat. From a rider’s reference frame, which of the following best explains this? W) The outward-directed centrifugal force counteracts gravity X) The outward-directed centripetal force counteracts gravity Y) The inward-directed centrifugal force counteracts gravity Z) The inward-directed centripetal force counteracts gravity
W: W) The outward-directed centrifugal force counteracts gravity
X: X) The outward-directed centripetal force counteracts gravity
Y: Y) The inward-directed centrifugal force counteracts gravity
Z: Z) The inward-directed centripetal force counteracts gravity
Answer: W) W) The outward-directed centrifugal force counteracts gravity
Which of the following best describes the relationship between weather and climate? W) Weather describes temperature, precipitation, and wind, climate only describes temperature X) Weather and climate are synonyms Y) Weather describes day to day conditions, climate describes long-term average conditions Z) Weather describes the conditions on a global scale, climate describes the conditions in a particular location
W: W) Weather describes temperature, precipitation, and wind, climate only describes temperature
X: X) Weather and climate are synonyms
Y: Y) Weather describes day to day conditions, climate describes long-term average conditions
Z: Z) Weather describes the conditions on a global scale, climate describes the conditions in a particular location
Answer: Y) Y) Weather describes day to day conditions, climate describes long-term average conditions
The fundamental building block of all silicate [SILL-ih-kate] minerals is silicon and oxygen arranged in a shape similar to what platonic solid?
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What is 70% of 30 plus 70% of 40?
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If the area of a circle is numerically four times its circumference, what is the area?
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Using an analytical balance, Rishi determines the mass of a sample to be 6.243 grams. How many significant figures are in this measured value?
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Identify all of the following three types of light that are generally unpolarized: 1) Glare from a road surface; 2) Direct sunlight; 3) LCD laptop display.
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Which of the following is NOT one of the Galilean [gal-ih-LAY-en] moons? W) Ganymede [GAN-ih-meed] X) Io [EYE-oh] Y) Callisto [kah-LIS-toh] Z) Titan
W: W) Ganymede [GAN-ih-meed]
X: X) Io [EYE-oh]
Y: Y) Callisto [kah-LIS-toh]
Z: Z) Titan
Answer: Z) Z) Titan
During fusion reactions in the sun, a nucleus with 2 protons and 1 neutron is created. What is the name of this isotope?
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Pacific Northwest National Lab scientists are studying aerosols. Aerosols are an example of what type of mixture in which the solute and solvent are of different phases?
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Savannah River National Lab researchers are studying how to manage feral pigs. Pigs are domesticated variants of wild boar that humans purposely selected for desirable traits. What is the term for this type of selection?
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What is the term for a protein that acts as a catalyst?
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What is the general term for a group of cells within an organ that work together to perform a higher-order function?
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What is the minimum number of seismometers needed to determine the location of an earthquake, assuming no stations are at the focus?
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Rank the following three reservoirs of ice in order of increasing percentage of Earth's freshwater: 1) Ice sheets; 2) Sea ice; 3) Alpine glaciers.
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The point (4, –7) is reflected over the y-axis. In what quadrant does the reflected point lie?
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Forty students are in a room, with 23 of them playing in the school band. What is the least number of students that could be added to the room to raise the percentage of band members to at least 70 percent?
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In type 1 diabetes, there is a deficiency of what hormone produced by the pancreas?
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For antiviral drugs, identify all of the following three mechanisms of actions that would be effective for directly inhibiting viral growth: 1) Preventing cross-linking of cell walls; 2) Inhibiting the 70S ribosome; 3) Preventing genome replication.
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Jan travels a distance 135 meters in 4.5 seconds. In SI base units, what is her average speed during this interval?
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A piece of styrofoam has a mass of 50 grams and a volume of 200 cubic centimeters. If it is at rest while floating in water, what fraction of its volume will be above the surface of the water?
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What event occurs in the Northern Hemisphere when the most intense sunlight on Earth occurs at 23.5 degrees South latitude?
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Andrew is observing an eclipsing binary system. Which of the following can he directly determine from measuring the relative time between eclipses? W) The mass of each star X) The total mass of the binary system Y) The eccentricity of the stars’ orbit Z) The distance between the two stars
W: W) The mass of each star
X: X) The total mass of the binary system
Y: Y) The eccentricity of the stars’ orbit
Z: Z) The distance between the two stars
Answer: Y) Y) The eccentricity of the stars’ orbit
How many integers are there between –8 and 9, inclusive?
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Give one of the linear factors of $$6x^2 - 7x - 55$$.
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Axons and dendrites are structures found in what type of cell, which is involved in signaling?
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The geologic periods where birds and flowering plants emerged are part of what era? W) Paleozoic X) Cenozoic [SEN-oh-ZOH-ik] Y) Mesozoic [MEH-zoh-ZOH-ik] Z) Phanerozoic [fah-NAIR-oh-zoh-ik]
W: W) Paleozoic
X: X) Cenozoic [SEN-oh-ZOH-ik]
Y: Y) Mesozoic [MEH-zoh-ZOH-ik]
Z: Z) Phanerozoic [fah-NAIR-oh-zoh-ik]
Answer: Y) Y) Mesozoic [MEH-zoh-ZOH-ik]
The equivalent resistance of two resistors in parallel is 2 ohms. If one of the resistors has a resistance of 4 ohms, then in ohms, what is the resistance of the other one?
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A microscope lens used to focus light emitted by a sample onto the user’s eyes is most likely to have what type of curvature?
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What is the square of the binomial $x - 11$?
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Determined Dog spots Swifty Squirrel. Swifty quickly runs 16 feet due east, then 6 feet due south. He then runs due west to a hole in the ground 2 feet away. How many feet is Swifty from where he was originally spotted by Determined?
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What organelle in a eukaryotic cell contains the chromosomes?
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One of the products of photosynthesis is glucose. From what reactant do the carbon atoms of this glucose originate?
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The pitch of a sound wave most directly corresponds to what physical property of the sound wave?
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What is the name given to the sum of the numbers of protons and neutrons for a given nuclide?
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