HS Sample Set 4, Round 4 from NSB
What is the mode of the following list of nine numbers: 4, 4, 5, 6, 6, 7, 7, 7, 8?
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Fred has an average of 90% on 5 calculus tests. What percent score does he need on the next test to have an average of 91%?
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Name the notable scientist who first devised the mathematical laws governing the motion of planetary orbits. W) Galileo X) Copernicus Y) Kepler Z) Newton
W: W) Galileo
X: X) Copernicus
Y: Y) Kepler
Z: Z) Newton
Answer: Y) Y) Kepler
Name the first human ever to travel in space.
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In projectile motion, assuming no air resistance, all of the following are constant except: W) Horizontal speed X) Horizontal acceleration Y) Vertical acceleration Z) Vertical speed
W: W) Horizontal speed
X: X) Horizontal acceleration
Y: Y) Vertical acceleration
Z: Z) Vertical speed
Answer: Z) Z) Vertical speed
A diver jumps out of a plane into free fall without air resistance. Which of the following quantities is the greatest? W) Instantaneous velocity after 1 second X) Instantaneous velocity after 2 seconds Y) Average velocity after 1 second Z) Average velocity after 2 seconds
W: W) Instantaneous velocity after 1 second
X: X) Instantaneous velocity after 2 seconds
Y: Y) Average velocity after 1 second
Z: Z) Average velocity after 2 seconds
Answer: X) X) Instantaneous velocity after 2 seconds
In natural systems, when a population uses the available resources at the rate equal to the resources’ renewal rate, the population is said to have reached: W) Extinction X) Constant growth Y) Holding capacity Z) Carrying capacity
W: W) Extinction
X: X) Constant growth
Y: Y) Holding capacity
Z: Z) Carrying capacity
Answer: Z) Z) Carrying capacity
Why are secondary and tertiary consumers typically more susceptible to pollutants, such as DDT, than organisms lower in the food web? W) They are larger X) Susceptibility is positively correlated with biomagnification Y) Consumers come in more direct contact with pollutants Z) Pollutant toxicity increases with each cycle of necrosis
W: W) They are larger
X: X) Susceptibility is positively correlated with biomagnification
Y: Y) Consumers come in more direct contact with pollutants
Z: Z) Pollutant toxicity increases with each cycle of necrosis
Answer: X) X) Susceptibility is positively correlated with biomagnification
The standard heat of formation of hydrogen gas in the form H₂ is: W) Always greater than 1 X) Twice that of atomic hydrogen Y) Equal to 0 Z) Determined by checking a table of the Standard Heats of Formation
W: W) Always greater than 1
X: X) Twice that of atomic hydrogen
Y: Y) Equal to 0
Z: Z) Determined by checking a table of the Standard Heats of Formation
Answer: Y) Y) Equal to 0
If the ∆H for a reaction is negative, which of the following statements is true? W) The enthalpy of the products is less than the enthalpy of the reactants X) Heat is released by the surroundings during the course of this reaction Y) The enthalpy term will be added to the reactant side of the chemical equation Z) Heat is absorbed by the system during the course of this reaction
W: W) The enthalpy of the products is less than the enthalpy of the reactants
X: X) Heat is released by the surroundings during the course of this reaction
Y: Y) The enthalpy term will be added to the reactant side of the chemical equation
Z: Z) Heat is absorbed by the system during the course of this reaction
Answer: W) W) The enthalpy of the products is less than the enthalpy of the reactants
In 1905, Albert Einstein published his paper about the photoelectric effect, for which he later won a Nobel Prize. His studies showed that light exhibits a duality, behaving in which two ways?
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What component of the electromagnetic spectrum has the highest frequency?
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In what unit is the atomic radius often measured? W) Picometers X) Millimeters Y) Nanometers Z) Centimeters
W: W) Picometers
X: X) Millimeters
Y: Y) Nanometers
Z: Z) Centimeters
Answer: W) W) Picometers
Which of the following neutral elements has the largest atomic radius? W) Silicon X) Phosphorus Y) Sulfur Z) Chlorine
W: W) Silicon
X: X) Phosphorus
Y: Y) Sulfur
Z: Z) Chlorine
Answer: W) W) Silicon
Simplify the following completely: $$(3xy^2)(4x^2y^3)$$
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Solve for \(x\): $$3x^2 + 6x - 9 = 0$$
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What U.S. endeavor designed and constructed the first atomic bomb?
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Name two of the following safety components in nuclear power plants.
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Which of the following is NOT a mineral? W) Diamond X) Coal Y) Quartz Z) Zinc
W: W) Diamond
X: X) Coal
Y: Y) Quartz
Z: Z) Zinc
Answer: X) X) Coal
Which of the following minerals does not have cubic cleavage? W) Fluorite X) Halite Y) Calcite Z) Galena
W: W) Fluorite
X: X) Halite
Y: Y) Calcite
Z: Z) Galena
Answer: Y) Y) Calcite
What theory predicts that for every known particle, there exists a superpartner particle of the same mass?
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Supersymmetry seeks to unify which three fundamental interactions?
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Name all of the following reasons that influence why gasoline prices are higher in some U.S. regions than in others: 1) distance from supply; 2) retail competition; 3) environmental programs; and/or 4) supply disruptions?
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Which of the following statements is NOT true about gasoline? W) The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites X) Gasoline is a hydrocarbon Y) When gasoline is burned under ideal conditions, its products are carbon dioxide, water, and heat Z) The overall efficiency of an automotive gasoline engine is about 80%
W: W) The octane rating of gasoline tells you how much the fuel can be compressed before it spontaneously ignites
X: X) Gasoline is a hydrocarbon
Y: Y) When gasoline is burned under ideal conditions, its products are carbon dioxide, water, and heat
Z: Z) The overall efficiency of an automotive gasoline engine is about 80%
Answer: Z) Z) The overall efficiency of an automotive gasoline engine is about 80%
You paid \$300 for a new Seagull guitar. Your guitar cost \$50 more than twice the cost of your friend’s guitar. How much was her guitar?
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In order to include caloric information, a pancake restaurant printed new menus for \$1.51 each. With a budget of \$2500.00, how many menus could the pancake restaurant print?
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Which of the following would least likely be used for biomass energy production? W) Soybeans and sunflowers X) Urban wood waste and biodegradable garbage Y) Corn and sorghum Z) Car parts from a salvage yard
W: W) Soybeans and sunflowers
X: X) Urban wood waste and biodegradable garbage
Y: Y) Corn and sorghum
Z: Z) Car parts from a salvage yard
Answer: Z) Z) Car parts from a salvage yard
In the United States, corn is the major feedstock for which biofuel?
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The Earth’s atmosphere contains roughly what percentage of oxygen by volume? W) 0.2% X) 2% Y) 20% Z) 80%
W: W) 0.2%
X: X) 2%
Y: Y) 20%
Z: Z) 80%
Answer: Y) Y) 20%
The average atmospheric pressure at sea level is about 1 atmosphere, which is equivalent to how many kilopascals? Provide your answer as a decimal to the nearest tenth.
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Name two major types of electron microscopes.
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One parent is homozygous for type A blood and the other is homozygous for type B blood. Their offspring has the phenotype AB blood. What mode of inheritance occurs when an allele from each homozygous parent combines in the offspring, and the offspring simultaneously demonstrates both phenotypes?
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Change 120 degrees to radians in terms of π.
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If the sine of an angle is negative, which other trigonometric function or functions will definitely have negative values?
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What weather pressure systems are characteristic of subtropical latitudes?
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If you lived near the equator, which kind of surface wind circulation would you likely most often experience? W) Colliding air masses X) Highly variable and unsteady; but mostly blowing from west to east Y) Sunny weather with little clouds and rain Z) Steady wind blowing from east to west
W: W) Colliding air masses
X: X) Highly variable and unsteady; but mostly blowing from west to east
Y: Y) Sunny weather with little clouds and rain
Z: Z) Steady wind blowing from east to west
Answer: W) W) Colliding air masses
What kind of polygon can never be concave?
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Which of the following is NOT true about a convex polygon? W) Every line segment connecting two interior points lies in the interior X) Every line segment connecting two vertices remains inside or on the boundary of the polygon Y) At least one interior angle is greater than 180 degrees Z) The number of edges is finite
W: W) Every line segment connecting two interior points lies in the interior
X: X) Every line segment connecting two vertices remains inside or on the boundary of the polygon
Y: Y) At least one interior angle is greater than 180 degrees
Z: Z) The number of edges is finite
Answer: Y) Y) At least one interior angle is greater than 180 degrees
One wavelength of light is measured: W) From node to node X) From crest to crest Y) From crest to trough Z) From axis to amplitude
W: W) From node to node
X: X) From crest to crest
Y: Y) From crest to trough
Z: Z) From axis to amplitude
Answer: X) X) From crest to crest
Which of the following types of electromagnetic radiation has the lowest frequency? W) Yellow light X) Gamma rays Y) Ultraviolet radiation Z) Green light
W: W) Yellow light
X: X) Gamma rays
Y: Y) Ultraviolet radiation
Z: Z) Green light
Answer: W) W) Yellow light
Which of the following changes with the local acceleration due to gravity? W) Mass X) Density Y) Inertia Z) Weight
W: W) Mass
X: X) Density
Y: Y) Inertia
Z: Z) Weight
Answer: Z) Z) Weight
Baby Petey drops a spoonful of mashed potatoes from his high chair and it hits the floor. This results in what kind of collision?
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Felsic rocks are rich in silicate, while mafic rocks are rich in iron. Which of the following rock types would be felsic? W) Basalt X) Granite Y) Gabbro Z) Dolomite
W: W) Basalt
X: X) Granite
Y: Y) Gabbro
Z: Z) Dolomite
Answer: X) X) Granite
Which of the following rock types would be from the depositional environment with the lowest energy? W) Conglomerate X) Sandstone Y) Siltstone Z) Greywacke
W: W) Conglomerate
X: X) Sandstone
Y: Y) Siltstone
Z: Z) Greywacke
Answer: Y) Y) Siltstone
What is the name of the organized structure within a cell which, in eukaryotic cells, bears genetic material as a threadlike linear strand of DNA bonded to various proteins?
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What specific term describes the specific location of a gene on its chromosome?
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The quantity of which subatomic particle differs between isotopes of a single element?
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Given that the atomic number of silver is 47, how many neutrons are in the Ag-108 isotope?
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Which of the following scientists first discovered a cell? W) Anton van Leeuwenhoek X) Henri Dutrochet Y) Stephen Inwood Z) Robert Hooke
W: W) Anton van Leeuwenhoek
X: X) Henri Dutrochet
Y: Y) Stephen Inwood
Z: Z) Robert Hooke
Answer: Z) Z) Robert Hooke
What specimen did Hooke describe as a multitude of tiny cells that looked like the compartments of honeycomb?
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