HS Sample Set 6, Round 9 from NSB
Ceramic materials have all but which of the following properties? W) Low density X) High thermal expansion Y) High ductility Z) High corrosion resistance
W: W) Low density
X: X) High thermal expansion
Y: Y) High ductility
Z: Z) High corrosion resistance
Answer: Y) Y) High ductility
What is the ground state electron configuration of iron in iron (III) sulfate?
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Which of the following circumstances is linked most closely with the formation of sand dunes? W) Drying of a lake X) Transgression of the sea Y) Folded mountain formation Z) Heavy glacial erosion
W: W) Drying of a lake
X: X) Transgression of the sea
Y: Y) Folded mountain formation
Z: Z) Heavy glacial erosion
Answer: W) W) Drying of a lake
During which era did the initial opening of the present-day Atlantic Ocean most likely occur?
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A bicycle wheel undergoes constant angular acceleration for time t. Identify all of the following at which the average acceleration equals the instantaneous acceleration: 1) 0.5t; 2) 0.67t; 3) 0.707t.
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What is the average force in newtons exerted on a 25-gram egg by a bed sheet if the egg hits the sheet at 4 m/s and takes 0.2 s to stop, given acceleration due to gravity as 10 m/s²?
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A commercial-scale gas atomizer will soon be developed in order to produce fine powder of what element, known for its strength, light weight, biocompatibility, and resistance to corrosion?
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Biodiesel is made through a chemical process called transesterification. Vegetable oil and methanol react to form biodiesel and what other byproduct?
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What is the term for the hypothesized process by which eukaryotes evolved a photosynthetic organelle?
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Which of the following is NOT an example of energy coupling? W) An ion releases energy as it travels through an ion channel down its concentration gradient X) A kinase hydrolyzes ATP for energy to catalyze a reaction Y) A transport molecule uses energy from one molecule going down its concentration gradient to power transport of another molecule up its gradient Z) As protons move down their concentration gradient, ATP synthase gathers energy to catalyze the synthesis of ATP
W: W) An ion releases energy as it travels through an ion channel down its concentration gradient
X: X) A kinase hydrolyzes ATP for energy to catalyze a reaction
Y: Y) A transport molecule uses energy from one molecule going down its concentration gradient to power transport of another molecule up its gradient
Z: Z) As protons move down their concentration gradient, ATP synthase gathers energy to catalyze the synthesis of ATP
Answer: W) W) An ion releases energy as it travels through an ion channel down its concentration gradient
In the three-by-three matrix \[-2 \;\;2\;\;0;\quad 4\;\;1\;-5;\quad 8\;\;3\;\;7\] which is the \(x_{2,3}\) element?
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If the squared length of the diagonal of one face of a cube is 162, what is the surface area in square units of the cube?
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Which of the following statements is true about alkenes and alkynes? W) Both are unsaturated compounds X) Both can undergo hydrogenation to lose hydrogens Y) Both can undergo oxygenation to lose oxygens Z) Both have carbon–carbon double bonds
W: W) Both are unsaturated compounds
X: X) Both can undergo hydrogenation to lose hydrogens
Y: Y) Both can undergo oxygenation to lose oxygens
Z: Z) Both have carbon–carbon double bonds
Answer: W) W) Both are unsaturated compounds
Name all of the following five substances which are classified as strong electrolytes: 1) carbonic acid; 2) hydrogen fluoride; 3) sodium chloride; 4) acetic acid; 5) hydrochloric acid.
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Which of the following sedimentary rocks is most likely to be changed to slate during regional metamorphism? W) Shale X) Conglomerate Y) Dolostone Z) Breccia
W: W) Shale
X: X) Conglomerate
Y: Y) Dolostone
Z: Z) Breccia
Answer: W) W) Shale
Which of the following describes a rock that is metamorphic and shows signs of foliation? W) It has bands of coarse intergrown crystals of various sizes X) It has particles of 0.01 cm to 1.0 cm cemented together Y) It has intergrown crystals less than 0.1 cm in size Z) It has intergrown crystals, mostly 2.0 cm in size
W: W) It has bands of coarse intergrown crystals of various sizes
X: X) It has particles of 0.01 cm to 1.0 cm cemented together
Y: Y) It has intergrown crystals less than 0.1 cm in size
Z: Z) It has intergrown crystals, mostly 2.0 cm in size
Answer: W) W) It has bands of coarse intergrown crystals of various sizes
Four particles are moving from north to south through a region with magnetic field directed from west to east. Which of the following particles bends downward? W) Alpha X) Beta Y) Neutron Z) Graviton
W: W) Alpha
X: X) Beta
Y: Y) Neutron
Z: Z) Graviton
Answer: X) X) Beta
Forty-five joules of energy are added to a quantity of ideal gas, and the gas expands and does 34 J of work. What is the change in internal energy of the gas, in joules?
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What is the name for the layer in the center of a fuel cell which separates the anode and cathode and allows positive ions through but not electrons?
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Regular gasoline with an octane rating of 87 has the same anti-knock qualities as a mixture with what percentages of iso-octane and heptane, respectively?
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Which of the following animals is considered a keystone species of the kelp forests of the Aleutian Islands ecosystem? W) Sea urchin X) Sea otter Y) Killer whale Z) Alaskan fur seals
W: W) Sea urchin
X: X) Sea otter
Y: Y) Killer whale
Z: Z) Alaskan fur seals
Answer: X) X) Sea otter
What scientific term describes strategies, such as black widow coloration, used by some animals to alert or warn other animals of their presence and potential danger?
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Which of the following equations is that of a line perpendicular to \(3x - 7y = 5\)? W) \(3x + 7y = 10\) X) \(7x + 3y = 10\) Y) \(7x - 3y = 10\) Z) \(3x - 7y = 10\)
W: W) \(3x + 7y = 10\)
X: X) \(7x + 3y = 10\)
Y: Y) \(7x - 3y = 10\)
Z: Z) \(3x - 7y = 10\)
Answer: X) X) \(7x + 3y = 10\)
What is the multiplicity of the zero 1 in the polynomial \(p(x)=x^4 + x^3 - 9x^2 + 11x - 4\)?
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In general, the probability of flooding decreases when there is an increase in the amount of which of the following? W) Precipitation X) Infiltration Y) Runoff Z) Snow melt
W: W) Precipitation
X: X) Infiltration
Y: Y) Runoff
Z: Z) Snow melt
Answer: X) X) Infiltration
Which of the following is the age of the most abundant surface bedrock in the Finger Lakes region of New York State? W) Cambrian X) Devonian Y) Pennsylvanian Z) Permian
W: W) Cambrian
X: X) Devonian
Y: Y) Pennsylvanian
Z: Z) Permian
Answer: X) X) Devonian
Cutaneous sensation to the palm of the hand and thumb is provided primarily by which nerve?
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By number, identify all of the following five characteristics that apply to the iris plant: 1) floral parts in multiples of four or five; 2) root system with a central tap root; 3) parallel venation on leaves; 4) vascular bundles in stem arranged in a ring; 5) one cotyledon.
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Which of the following elements does NOT commonly form simple ions? W) Silicon X) Oxygen Y) Lead Z) Sulfur
W: W) Silicon
X: X) Oxygen
Y: Y) Lead
Z: Z) Sulfur
Answer: W) W) Silicon
How many total carbons are in the organic compound 1,1-dichloro-3-ethyl-2,4-dimethylpentane?
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Which of the following surface ocean currents transports warm water to higher latitudes? W) Labrador Current X) Falkland Current Y) Gulf Stream Z) West Wind Drift
W: W) Labrador Current
X: X) Falkland Current
Y: Y) Gulf Stream
Z: Z) West Wind Drift
Answer: Y) Y) Gulf Stream
Which of the following internal layers of the Earth allows for isostasy of the crust? W) Outer core X) Inner core Y) Asthenosphere Z) Lithosphere
W: W) Outer core
X: X) Inner core
Y: Y) Asthenosphere
Z: Z) Lithosphere
Answer: Y) Y) Asthenosphere
When a tennis racket hits a tennis ball, how do the forces on each object compare? W) The force on the tennis ball has a greater magnitude than the force on the racket X) The force on the racket has a greater magnitude than the force on the ball Y) The magnitude of the force on each object is the same Z) The forces depend on the level of impact
W: W) The force on the tennis ball has a greater magnitude than the force on the racket
X: X) The force on the racket has a greater magnitude than the force on the ball
Y: Y) The magnitude of the force on each object is the same
Z: Z) The forces depend on the level of impact
Answer: Y) Y) The magnitude of the force on each object is the same
A wave with a frequency of 40 Hz has a wavelength of 2.5 m. What is the phase velocity in meters per second?
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Which of the following conditions is NOT required to form coal? W) A stagnant and stable water level X) Heat and pressure over a long period of time Y) An equal supply of both vegetation and sediment Z) A plant accumulation rate equaling land subsidence rate
W: W) A stagnant and stable water level
X: X) Heat and pressure over a long period of time
Y: Y) An equal supply of both vegetation and sediment
Z: Z) A plant accumulation rate equaling land subsidence rate
Answer: Y) Y) An equal supply of both vegetation and sediment
Why, aside from making it possible to push more energy through a line in a given unit of time, is power transmitted at higher voltages over longer distances?
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Damage to which human brain region results in anomalous circadian rhythms?
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Which of the following is true regarding osmoregulation in a freshwater fish? W) Osmotic water loss occurs over body surface and via gills X) Nitrogenous wastes are excreted primarily in the form of uric acid Y) Copious amount of urine hypotonic to the blood is excreted Z) Excess salt is excreted from gills
W: W) Osmotic water loss occurs over body surface and via gills
X: X) Nitrogenous wastes are excreted primarily in the form of uric acid
Y: Y) Copious amount of urine hypotonic to the blood is excreted
Z: Z) Excess salt is excreted from gills
Answer: Y) Y) Copious amount of urine hypotonic to the blood is excreted
In terms of a, b, c, and d, what is the slope of the line \(3x + 2b\,y = cd\)?
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Which of the following points lies in the solution set for the system of inequalities \(2y - x \ge -6\) and \(2y - 3x < -6\)? W) (-4, -1) X) (3, 1) Y) (0, -3) Z) (4, 3)
W: W) (-4, -1)
X: X) (3, 1)
Y: Y) (0, -3)
Z: Z) (4, 3)
Answer: X) X) (3, 1)
In titration, which of the following is most commonly used as an acid–base indicator in the pH 8 to pH 10 range? W) Phenolphthalein X) Cresol red Y) Bromthymol blue Z) Methyl orange
W: W) Phenolphthalein
X: X) Cresol red
Y: Y) Bromthymol blue
Z: Z) Methyl orange
Answer: W) W) Phenolphthalein
To what total volume in milliliters would 100 mL of an 80% ethanol solution by volume need to be diluted to obtain a 20% solution by volume?
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Of the eight planets in the solar system, which one likely has the lowest escape velocity with respect to its own gravity?
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The following four particles A, B, C, and D are of equal volume and are dropped into a column filled with water. Particle A is flat with a density of 2.5 g/cm³. Particle B is flat with a density of 3.0 g/cm³. Particle C is round with a density of 2.5 g/cm³, and particle D is round with a density of 3.0 g/cm³. Which particle would usually settle most rapidly?
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Sue and Ben are 5 m and 10 m, respectively, away from a balloon when it pops loudly. Sue’s sound pressure meter recorded a level of 80 dB. What did Ben’s identical meter record in decibels to the nearest decibel?
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A current-carrying wire changes diameter from larger to smaller gauge. In which of the following locations would the current be greater? W) Larger section X) Smaller section Y) At the location where the wire changes diameter Z) It would be the same at all points
W: W) Larger section
X: X) Smaller section
Y: Y) At the location where the wire changes diameter
Z: Z) It would be the same at all points
Answer: Z) Z) It would be the same at all points
Name the genus of mosquito that most frequently serves as the vector for the debilitating dengue fever.
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Indicate, respectively, the term to describe the stage in which two genetically different nuclei occur in the same cell, and the principal kingdom in which the stage occurs as a normal part of the organism’s life cycle.
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How many points of intersection do the graphs of the functions \(f(x)=x^2\) and \(g(x)=2^x\) have?
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Evaluate the following integral: \(\displaystyle \int_{0}^{2} \frac{1}{t\,e^{\ln t}}\,dt.\)
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