MS Sample Set 9, Round 17 from NSB
What technology is designed to harvest energy from the thermal gradient in the oceans?
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Which of the following is NOT possible using a solar box cooker? W) Boiling water X) Sterilizing water Y) Pasteurizing milk Z) Purifying anhydrous ethanol
W: W) Boiling water
X: X) Sterilizing water
Y: Y) Pasteurizing milk
Z: Z) Purifying anhydrous ethanol
Answer: Z) Z) Purifying anhydrous ethanol
What is the molecular geometry of methane? W) Linear X) Bent Y) Trigonal pyramidal Z) Tetrahedral
W: W) Linear
X: X) Bent
Y: Y) Trigonal pyramidal
Z: Z) Tetrahedral
Answer: Z) Z) Tetrahedral
What principle states that each point on a wave front is a source of a new wavelet?
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Express the following as a mixed number: the fraction with numerator 5/6 and denominator 25/72.
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Find the volume, in cubic meters, of a rectangular pyramid measuring 17 meters and 18 meters along the base and 17 meters in height.
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Identify all of the following three organisms that are considered gastropods: 1) Snails; 2) Clam; 3) Squid.
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Which of the following are not found in both prokaryotes and eukaryotes? W) Flagella X) Ribosomes Y) Mitochondria Z) Plasma membrane
W: W) Flagella
X: X) Ribosomes
Y: Y) Mitochondria
Z: Z) Plasma membrane
Answer: Y) Y) Mitochondria
Type Ia supernovas are associated with what type of star?
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Which of the following is an ore of zinc? W) Chalcocite X) Malachite Y) Sphalerite Z) Dolomite
W: W) Chalcocite
X: X) Malachite
Y: Y) Sphalerite
Z: Z) Dolomite
Answer: Y) Y) Sphalerite
What mechanism controls the passage of substances from the blood to the cerebrospinal fluid and is a structure composed of astrocytes?
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What term describes the change in displacement per unit time?
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Which of the following hormones plays a major role in the male reproductive system? W) Androgens X) Estrogens Y) Mineralocorticoids Z) Glucocorticoids
W: W) Androgens
X: X) Estrogens
Y: Y) Mineralocorticoids
Z: Z) Glucocorticoids
Answer: W) W) Androgens
What reproductive cells do ferns release into the air?
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Oil components are separated using what process? W) Evaporation X) Fractional distillation Y) Fracking Z) Chromatography
W: W) Evaporation
X: X) Fractional distillation
Y: Y) Fracking
Z: Z) Chromatography
Answer: X) X) Fractional distillation
The U.S. Department of Energy has created safety measures for the disposal of compact fluorescent lightbulbs because they contain what hazardous element?
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Hydrogen, with its one electron, produces a line spectrum in the visible light range with: W) One color line X) Two color lines Y) Three color lines Z) Four color lines
W: W) One color line
X: X) Two color lines
Y: Y) Three color lines
Z: Z) Four color lines
Answer: Z) Z) Four color lines
The Doppler effect occurs: W) Only in sound waves X) Only in longitudinal waves Y) Only in transverse waves Z) In all types of waves
W: W) Only in sound waves
X: X) Only in longitudinal waves
Y: Y) Only in transverse waves
Z: Z) In all types of waves
Answer: Z) Z) In all types of waves
A bowshock is found where a planet's magnetic field deflects what?
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Xerophytes are plants most likely to be found in what biome?
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Points A, B, and C all lie on circle O. What is the measure of Angle ABC in degrees if it intercepts an arc of 112°?
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Convert 102 in base 10 to base 7.
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Which of the following terms is used to describe substances that reduce pain without causing unconsciousness? W) Analgesic X) Anesthetic Y) Astringent Z) Anaboloid
W: W) Analgesic
X: X) Anesthetic
Y: Y) Astringent
Z: Z) Anaboloid
Answer: W) W) Analgesic
Which general type of material is added to a reaction in order to lower the activation energy, thus making it proceed faster?
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What fraction is halfway between 1/5th and 1/3rd on the number line?
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If b and c satisfy the system of equations 6b + 7 = 12c and 3b – 9c = 4, what is c?
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What genomic elements are capable of moving randomly throughout the genome?
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What type of virus solely infects bacteria?
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What process breaks down heavy hydrocarbons into smaller ones?
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The Fischer-Tropsch process converts hydrogen and carbon dioxide into what?
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Which of the following electron configurations would be the most chemically stable? W) [He] 2s¹ X) [He] 2s² Y) [He] 2s² 2p⁵ Z) [He] 2s² 2p⁶
W: W) [He] 2s¹
X: X) [He] 2s²
Y: Y) [He] 2s² 2p⁵
Z: Z) [He] 2s² 2p⁶
Answer: Z) Z) [He] 2s² 2p⁶
A permanent magnet has magnetic properties due to which of the following? W) The magnetic fields of its electrons are balanced X) Magnetic monopoles accumulate at the ends Y) The magnetic domains have parallel magnetizations Z) Its magnetic dipole moment is zero
W: W) The magnetic fields of its electrons are balanced
X: X) Magnetic monopoles accumulate at the ends
Y: Y) The magnetic domains have parallel magnetizations
Z: Z) Its magnetic dipole moment is zero
Answer: Y) Y) The magnetic domains have parallel magnetizations
Taxol is a drug used to treat which of the following disorders? W) Malaria X) Cystic fibrosis Y) Tuberculosis Z) Cancer
W: W) Malaria
X: X) Cystic fibrosis
Y: Y) Tuberculosis
Z: Z) Cancer
Answer: Z) Z) Cancer
A Hall-Heroult cell is used industrially for the extraction of what metal?
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What interstellar clouds consist of neutral hydrogen?
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Which of the following correctly explains why liquid fuel rockets are preferred over solid fuel rockets for long term space missions? W) Liquid fuel rockets can store more fuel X) The use of liquid fuel rockets can be stopped and restarted Y) Liquid fuel is safer than solid fuel Z) Liquid fuel is less volatile than solid fuel
W: W) Liquid fuel rockets can store more fuel
X: X) The use of liquid fuel rockets can be stopped and restarted
Y: Y) Liquid fuel is safer than solid fuel
Z: Z) Liquid fuel is less volatile than solid fuel
Answer: X) X) The use of liquid fuel rockets can be stopped and restarted
What is the greatest common factor of the terms in the polynomial 3x²y² + 12yz² + 6xy³z?
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Jason needs to buy 2 pairs of jeans and 4 shirts. Jeans cost \$15.24 and shirts cost \$12.56. He gave the cashier \$100 and received his change. If he also wants to buy a coat that costs \$30.75, how much more money does he need?
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Identify all of the following units that are considered SI units: 1) Kilogram; 2) Metric ton; 3) Fahrenheit.
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You are standing 100 meters from a concrete wall and your friend Billy is 200 meters farther away, on the same side of the wall. When you make a loud, barbaric yelling sound, Billy hears both the original sound and the echo. If the speed of sound in air is taken to be 300 meters per second, what is the difference in time, in seconds as a decimal rounded to the hundredths place, between when Billy hears the original yell versus the echoed yell off of the concrete building?
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In the brain, the occipital lobe is primarily involved in which bodily function? W) Movement X) Vision Y) Body sensation Z) Hearing
W: W) Movement
X: X) Vision
Y: Y) Body sensation
Z: Z) Hearing
Answer: X) X) Vision
What extract from red seaweed is used as a gelling agent in microbiology labs for making bacterial cell cultures?
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What type of optical aberration occurs because different wavelengths of light have slightly different indices of refraction?
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What kind of particles will be detected in a massive surge just before a supernova?
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Sharks are in the class Chondrichthyes, because they have a skeleton made of what substance?
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What type of plant cells have thin, flexible primary walls and perform most of the metabolic functions of the plant?
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