MS Sample Set 1, Round 12 from NSB
If the density of a metal alloy is 5,430 kilograms per cubic meter, what is its specific gravity, rounded to the second decimal place?
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An Olympic runner braces himself against a stationary set of foot blocks and accelerates with a horizontal magnitude of 2 meters per second squared. How many newtons of horizontal force does the runner exert on the blocks to produce this acceleration if his mass is 70 kilograms?
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Which of the following best explains the relative lack of hydrogen in our atmosphere in spite of its abundance in the Universe: W) most of it is tied up in the water molecule X) most of it is consumed in photosynthesis Y) most of it escaped into space long ago because of its low mass Z) most of it was an unstable isotope that decayed into helium
W: W) most of it is tied up in the water molecule
X: X) most of it is consumed in photosynthesis
Y: Y) most of it escaped into space long ago because of its low mass
Z: Z) most of it was an unstable isotope that decayed into helium
Answer: Y) Y) most of it escaped into space long ago because of its low mass
Which of the following locations contains relatively young coasts that formed as a consequence of continental rifting: W) southern coasts of the Aleutian Islands X) Gulf of California Y) Hawaii Z) northeastern Japan
W: W) southern coasts of the Aleutian Islands
X: X) Gulf of California
Y: Y) Hawaii
Z: Z) northeastern Japan
Answer: X) X) Gulf of California
What is the x-intercept of a graph of the following equation: \(y = -7x + 7\)?
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Multiply the polynomial \(3x^2 - 4xy + y^2\) by \(-3xy\), and simplify:
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Which of the following filters can withstand temperatures up to 1400ºC: W) paper cellulosic X) borosilicate glass Y) polyester Z) ceramic
W: W) paper cellulosic
X: X) borosilicate glass
Y: Y) polyester
Z: Z) ceramic
Answer: Z) Z) ceramic
Convert 60 miles per hour into feet per second:
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Which of the following BEST describes muscle tone: W) maximum strength of a muscle X) length versus width of a muscle Y) average energy use or oxygen use of a fully contracted muscle Z) amount of tension or contraction of a resting muscle
W: W) maximum strength of a muscle
X: X) length versus width of a muscle
Y: Y) average energy use or oxygen use of a fully contracted muscle
Z: Z) amount of tension or contraction of a resting muscle
Answer: Z) Z) amount of tension or contraction of a resting muscle
Which of the following terms most commonly refers to nerves leaving the brain: W) posterior X) rostral Y) efferent Z) involuntary
W: W) posterior
X: X) rostral
Y: Y) efferent
Z: Z) involuntary
Answer: Y) Y) efferent
Randy was precise in his lab experiment but he was not accurate. Which of the following best describes his measurements: W) his data was close to the true value but not reproducible X) his data was close to the true value and reproducible Y) his data was not close to the true value but reproducible Z) his data was not close to the true value and reproducible
W: W) his data was close to the true value but not reproducible
X: X) his data was close to the true value and reproducible
Y: Y) his data was not close to the true value but reproducible
Z: Z) his data was not close to the true value and reproducible
Answer: Y) Y) his data was not close to the true value but reproducible
Using a gravitational acceleration of 10 meters per second squared and giving your answer in appropriate SI units, if dropped off a cliff, how fast will a rock be falling at the end of 2 seconds, if friction is ignored?
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The Earth’s mantle is thought to be composed of which of the following: W) coal X) granite Y) slate Z) peridotite
W: W) coal
X: X) granite
Y: Y) slate
Z: Z) peridotite
Answer: Z) Z) peridotite
Giving your answer in hours and minutes, how often will the entire tidal pattern on Earth be repeated?
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What is the common ratio of the geometric series with the first three terms \( \tfrac12, \tfrac14, \tfrac18\)?
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What is the least common multiple of the numbers 30, 45, and 60?
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Which of the following best describes a coelacanth (see-la-canth): W) living fossil fish X) extinct amphibian Y) extinct mammal Z) an air-breathing extinct fish
W: W) living fossil fish
X: X) extinct amphibian
Y: Y) extinct mammal
Z: Z) an air-breathing extinct fish
Answer: W) W) living fossil fish
Which of the following three choices are reference scales commonly used in describing the hardness of materials: Rockwell; Austenite; Ferrule
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Into which of the following does a typical fern spore most directly develop: W) sporophyte X) egg cell Y) gametophyte Z) sperm cell
W: W) sporophyte
X: X) egg cell
Y: Y) gametophyte
Z: Z) sperm cell
Answer: Y) Y) gametophyte
Name all of the following 4 plants that are conifers: pine; hemlock; palm; maple
Choices:
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Which of the following most likely occurs when one molecule is oxidized: W) another molecule is reduced X) there is a release in work Y) the system becomes more ordered Z) the reaction is at equilibrium
W: W) another molecule is reduced
X: X) there is a release in work
Y: Y) the system becomes more ordered
Z: Z) the reaction is at equilibrium
Answer: W) W) another molecule is reduced
Arrange the following 3 pure substances in order of INCREASING evaporation rates at 1 atmosphere of pressure and at room temperature: water; acetone; aluminum
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Which of the following were NOT produced by the eruption of Mount Saint Helens in 1980: W) lahar flows X) pyroclastic flows Y) significant ashfall deposits Z) basic lava
W: W) lahar flows
X: X) pyroclastic flows
Y: Y) significant ashfall deposits
Z: Z) basic lava
Answer: Z) Z) basic lava
All of the volcanoes of Hawaii belong to which one of the three basic types?
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Reduce the following expression to lowest terms: \(\frac{xy}{3x + y}\)
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Find the prime factorization of 90:
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Which of the following is a native American fruit that is typically grown in bogs and harvested in the fall: W) cherries X) blueberries Y) cranberries Z) huckleberries
W: W) cherries
X: X) blueberries
Y: Y) cranberries
Z: Z) huckleberries
Answer: Y) Y) cranberries
Which of the following is the pigment responsible for the characteristic red color of the cranberry: W) red dye number 2 X) carotene Y) carmine red Z) anthocyanin
W: W) red dye number 2
X: X) carotene
Y: Y) carmine red
Z: Z) anthocyanin
Answer: Z) Z) anthocyanin
Which of the following is a theory of heredity postulated by Lamarck: W) characteristics acquired after birth are passed on to following generations X) nature selects for the best characteristic Y) only the fittest organisms survive through natural selection Z) genes determine the phenotype
W: W) characteristics acquired after birth are passed on to following generations
X: X) nature selects for the best characteristic
Y: Y) only the fittest organisms survive through natural selection
Z: Z) genes determine the phenotype
Answer: W) W) characteristics acquired after birth are passed on to following generations
By words or numbers, name all of the following 3 choices that are found in the E. coli bacterium: 1) mitochondria; 2) chloroplasts; 3) ribosomes
Choices:
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Which of the following molecules is considered the most polar: W) CH₄ X) HF Y) F₂ Z) CO₂
W: W) CH₄
X: X) HF
Y: Y) F₂
Z: Z) CO₂
Answer: X) X) HF
In addition to oxygen and sodium, what other element is a major constituent of borax?
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A Beaufort number of 4 indicates: W) a moderate earthquake X) a moderate breeze Y) a strong tornado Z) a mineral similar in hardness to fluorite
W: W) a moderate earthquake
X: X) a moderate breeze
Y: Y) a strong tornado
Z: Z) a mineral similar in hardness to fluorite
Answer: X) X) a moderate breeze
If cumulus mammatus clouds are heading in your direction, you may soon experience: W) clearing skies X) severe weather Y) high pressure conditions Z) snow
W: W) clearing skies
X: X) severe weather
Y: Y) high pressure conditions
Z: Z) snow
Answer: X) X) severe weather
Find the sum of 7 times 23, and 3 times 23:
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Solve the following equation for x: \((4x – 8) – (5x + 6) = (2x – 9) – (4x + 1)\)
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What human disease is caused by infection with the rhinovirus?
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Name all of the following 4 diseases for which effective vaccines are currently available: chicken pox; malaria; diphtheria; HIV
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Which of the following is LEAST likely to be found in or on a root of a flowering plant: W) stomata X) epidermis Y) xylem Z) phloem
W: W) stomata
X: X) epidermis
Y: Y) xylem
Z: Z) phloem
Answer: W) W) stomata
What is the common name for the protective layers of cells that cover the tip of a growing root, allowing it to make its way through difficult soils?
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When aluminum filings are added to a beaker containing concentrated sulfuric acid, what gas is produced?
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Rounded to the first decimal place, what is the current, in amperes, for a 60-watt bulb running on a 120-volt power source?
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In which of the five main layers of Earth’s atmosphere does the Space Shuttle orbit?
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Order the following 4 life forms from the EARLIEST to appear on Earth to the most RECENT: crocodile; jawless fish; jawed fish; antelope
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Any triangle inscribed within a semicircle is always what type of triangle if one of its sides is the diameter of the semicircle?
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Provide the prime factors over the integers for the following expression: \(25x^4 - 16y^2\)
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Which of the following four star types is believed to be the most common in the universe: neutron; blue giant; red dwarf; pulsar?
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Which one of the following five spectral classes of stars is the HOTTEST: A; F; G; K; O
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What sugar is found in the backbone of DNA?
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Name all of the following 4 trees that produce true flowers: hemlock; palm; maple; pine
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