MS Sample Set 3, Round 7 from NSB
What is the pH of a neutral aqueous solution?
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If a solution has a low pH, what ion predominates in the solution?
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When the nickel-iron crystals in iron meteorites cool very slowly it often causes them to: W) fall apart X) be exceedingly brittle with a flake-like appearance Y) have large crystals Z) have a soft outer layer and a dense hard inner core
W: W) fall apart
X: X) be exceedingly brittle with a flake-like appearance
Y: Y) have large crystals
Z: Z) have a soft outer layer and a dense hard inner core
Answer: Y) Y) have large crystals
Which of the following is NOT typically true about fossils: W) index fossils are not geographically widespread X) fossilized marine animals have been found in the Himalayan Mountains Y) fossils found in tar pits are very well preserved Z) petrified wood is a type of fossil
W: W) index fossils are not geographically widespread
X: X) fossilized marine animals have been found in the Himalayan Mountains
Y: Y) fossils found in tar pits are very well preserved
Z: Z) petrified wood is a type of fossil
Answer: W) W) index fossils are not geographically widespread
Giving your answer in meters to the first decimal place, if one leg of an isosceles right triangle is 10 meters long, how long is the hypotenuse?
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Consider 2 cars that start from the same point along a highway and travel in the same direction. One car travels at a constant rate of 40 miles per hour and the other at a constant rate of 50 miles per hour. How many hours later are the cars 40 miles apart?
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If you draw a triangle on a sphere such as a basketball, which of the following is TRUE: W) the sum of the 3 angles is greater than 180° X) the sum of the 3 angles is equal to 180° Y) the sum of the 3 angles is less than 180° Z) the triangle has negative curvature and is not considered a triangle
W: W) the sum of the 3 angles is greater than 180°
X: X) the sum of the 3 angles is equal to 180°
Y: Y) the sum of the 3 angles is less than 180°
Z: Z) the triangle has negative curvature and is not considered a triangle
Answer: W) W) the sum of the 3 angles is greater than 180°
What metallic element is silvery white, takes on a high polish, is extensively used for making stainless steel and other corrosion-resistant alloys, and is used in making rechargeable batteries?
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The grasshopper body is grossly divided into what 3 parts?
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Which of the following is the primary excretory organ of the grasshopper: W) mandible X) gonopore Y) malpighian tube Z) siphon
W: W) mandible
X: X) gonopore
Y: Y) malpighian tube
Z: Z) siphon
Answer: Y) Y) malpighian tube
If a screwdriver is used to tighten a screw, then the screwdriver is an example of what simple machine?
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What is the force, in newtons, with which gravity pulls a 70-kilogram person towards the Earth’s surface?
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Human-induced global climate change is believed to be caused primarily by the release of what gas into the atmosphere?
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Which of the following is a gas that is a pollutant when present in the troposphere but beneficial when present in the stratosphere: W) nitrogen X) chlorofluorocarbons Y) hydrogen Z) ozone
W: W) nitrogen
X: X) chlorofluorocarbons
Y: Y) hydrogen
Z: Z) ozone
Answer: Z) Z) ozone
Which of the following produces red-colored eyes in humans in some photographs taken with a flash: W) light that reflects off the retina X) light of a certain wavelength that is scattered by the cornea Y) light that is illuminating the optic nerve Z) certain films react with red light more than others
W: W) light that reflects off the retina
X: X) light of a certain wavelength that is scattered by the cornea
Y: Y) light that is illuminating the optic nerve
Z: Z) certain films react with red light more than others
Answer: W) W) light that reflects off the retina
Giving your answer in meters rounded to the second decimal place, add 2,500 centimeters to 350 millimeters:
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How many chromosomes does a mature human sperm typically have?
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Of the 4 main blood types, what type has the LEAST amount of reacting antigens and is therefore the most common type for blood transfusions?
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Which of the following is NOT true concerning pure liquid water: W) it is a good solvent for simple sugars X) it has a high specific heat Y) it is a requirement for all known life forms Z) the colder it gets the denser it gets from 100°C to 0°C
W: W) it is a good solvent for simple sugars
X: X) it has a high specific heat
Y: Y) it is a requirement for all known life forms
Z: Z) the colder it gets the denser it gets from 100°C to 0°C
Answer: Z) Z) the colder it gets the denser it gets from 100°C to 0°C
Which of the following is LEAST accurate: W) water is a molecule composed of two hydrogen atoms and one oxygen atom X) each carbon dioxide molecule has 2 oxygen atoms Y) dioxide means something has two oxygen molecules Z) carbon dioxide is made of two elements
W: W) water is a molecule composed of two hydrogen atoms and one oxygen atom
X: X) each carbon dioxide molecule has 2 oxygen atoms
Y: Y) dioxide means something has two oxygen molecules
Z: Z) carbon dioxide is made of two elements
Answer: Y) Y) dioxide means something has two oxygen molecules
To calculate the distance between an earthquake epicenter and a seismograph, seismologists construct a time-travel curve. What 2 seismic waves are plotted on this curve: W) P-waves and S-waves X) P-waves and surface waves Y) S-waves and surface waves Z) P-waves and L-waves
W: W) P-waves and S-waves
X: X) P-waves and surface waves
Y: Y) S-waves and surface waves
Z: Z) P-waves and L-waves
Answer: W) W) P-waves and S-waves
Of the following 3 seismic waves, name all that can travel through Earth’s liquid outer core: S-wave; surface wave; P-wave
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If a + b = 12, b + c = 20, and c + d = 6, find a if d = 1.
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Using π = 3.14, give the integer value, in square centimeters, for the area of a circle whose diameter is 200 centimeters:
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Which of the following statements is NOT true: W) yeast reproduces asexually X) lichens are the mainstay of the caribou diet Y) coal is not a native mineral Z) a spider’s web is made from a specialized carbohydrate
W: W) yeast reproduces asexually
X: X) lichens are the mainstay of the caribou diet
Y: Y) coal is not a native mineral
Z: Z) a spider’s web is made from a specialized carbohydrate
Answer: Z) Z) a spider’s web is made from a specialized carbohydrate
Which of the following celestial objects is the farthest from Earth: W) the most distant quasar X) the Andromeda galaxy Y) the closest binary star Z) Vega
W: W) the most distant quasar
X: X) the Andromeda galaxy
Y: Y) the closest binary star
Z: Z) Vega
Answer: W) W) the most distant quasar
What is the scientific term for the male reproductive structure in plants?
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What is the most common term for the root system in most dicots?
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Which of the following occurs as a bottle of milk falls from the edge of a table until just before it strikes a floor: W) all the bottle’s potential energy is lost to heat and friction X) the potential energy of the bottle decreases Y) the potential energy of the bottle increases Z) the total potential energy of the bottle remains the same
W: W) all the bottle’s potential energy is lost to heat and friction
X: X) the potential energy of the bottle decreases
Y: Y) the potential energy of the bottle increases
Z: Z) the total potential energy of the bottle remains the same
Answer: X) X) the potential energy of the bottle decreases
What is the total pressure, in atmospheres, at a depth of 40 meters in saltwater?
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Where does most of Earth’s groundwater come from: W) percolation of seawater into underground aquifers where it undergoes natural desalination X) precipitation Y) aquifers that have been there since Earth's origin Z) glacial melting and runoff
W: W) percolation of seawater into underground aquifers where it undergoes natural desalination
X: X) precipitation
Y: Y) aquifers that have been there since Earth's origin
Z: Z) glacial melting and runoff
Answer: X) X) precipitation
A conglomerate rock belongs to which of the following groups of rocks: W) foliated metamorphic X) clastic sedimentary Y) chemical sedimentary Z) organic sedimentary
W: W) foliated metamorphic
X: X) clastic sedimentary
Y: Y) chemical sedimentary
Z: Z) organic sedimentary
Answer: X) X) clastic sedimentary
Solve the following equation for x: |x – 3| = –7
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Solve the following equation for x over the real numbers: (64)² = 16x²
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Which of the following is the primary industrial use for diamond dust: W) it is melted and made into liquid crystal displays X) as an abrasive Y) as a bonding agent in high-end ceramics Z) as a strengthening agent in high-tech cements
W: W) it is melted and made into liquid crystal displays
X: X) as an abrasive
Y: Y) as a bonding agent in high-end ceramics
Z: Z) as a strengthening agent in high-tech cements
Answer: X) X) as an abrasive
Which of the following BEST explains why when a balloon filled with air is moved from a cold room to a warm room, the balloon expands: W) the air pressure on the outside of the balloon is now greater X) the air molecules inside the balloon get bigger Y) the air molecules inside the balloon move faster Z) the room’s air molecules are repelled from the outside of the balloon by electrostatic forces
W: W) the air pressure on the outside of the balloon is now greater
X: X) the air molecules inside the balloon get bigger
Y: Y) the air molecules inside the balloon move faster
Z: Z) the room’s air molecules are repelled from the outside of the balloon by electrostatic forces
Answer: Y) Y) the air molecules inside the balloon move faster
Which of the following trees have simple, pinnate leaves: W) red oak and fig X) sugar maple and sycamore Y) sassafras and palm Z) cherry and apple
W: W) red oak and fig
X: X) sugar maple and sycamore
Y: Y) sassafras and palm
Z: Z) cherry and apple
Answer: Z) Z) cherry and apple
Of the 4 general types of biological molecules—proteins, carbohydrates, lipids and nucleic acids—which category would most enzymes fall under?
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The octet rule MOST directly involves which of the following: W) only atoms with 8 or more protons X) the sharing of valence electrons Y) the balance of neutrons to protons Z) the loss of protons in radioactive decay
W: W) only atoms with 8 or more protons
X: X) the sharing of valence electrons
Y: Y) the balance of neutrons to protons
Z: Z) the loss of protons in radioactive decay
Answer: X) X) the sharing of valence electrons
Which of the following is LEAST accurate: W) all atoms have protons in their nuclei X) covalent bonding of atoms involves the sharing of electrons Y) potassium and bromine normally form covalent bonds Z) most of the mass of an atom is in its nucleus and the atom is mostly empty space
W: W) all atoms have protons in their nuclei
X: X) covalent bonding of atoms involves the sharing of electrons
Y: Y) potassium and bromine normally form covalent bonds
Z: Z) most of the mass of an atom is in its nucleus and the atom is mostly empty space
Answer: Y) Y) potassium and bromine normally form covalent bonds
Oceanic crust being formed at spreading centers is primarily made of: W) granite X) basalt Y) peridotite Z) andesite
W: W) granite
X: X) basalt
Y: Y) peridotite
Z: Z) andesite
Answer: X) X) basalt
What is the name of the process that occurs along a convergent plate boundary whereby one of the plates bends and sinks into the mantle?
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If Dan can paint a wall in 3 hours but Ryan takes 6 hours, how many hours will it take them to paint the wall if they work together?
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Subtract the following, giving your answer in simplest radical form: √20 − 2√45
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Pheromones are chemicals produced by various species and function primarily in: W) camouflage X) digestion Y) sweat secretion Z) communication
W: W) camouflage
X: X) digestion
Y: Y) sweat secretion
Z: Z) communication
Answer: Z) Z) communication
Which of the following U.S. states is LEAST prone to having earthquakes because it does not lie near an existing fault zone: W) Florida X) Alaska Y) Washington Z) Missouri
W: W) Florida
X: X) Alaska
Y: Y) Washington
Z: Z) Missouri
Answer: W) W) Florida
What is the scientific term for the process arthropods go through to shed their exoskeleton to allow them to grow into a new one?
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What is the primary protein from which eagles’ talons are made?
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