HS Sample Set 9, Round 6 from NSB
Which of the following processes help to form new mountains? W) Lithification X) Volcanic eruptions Y) Earthquakes Z) Denudation
W: W) Lithification
X: X) Volcanic eruptions
Y: Y) Earthquakes
Z: Z) Denudation
Answer: X) X) Volcanic eruptions
The red or pink color commonly seen in quartzite is due to oxides of what element?
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Which of the following does not play a role in protein digestion? W) Trypsin X) Pepsin Y) Carboxypeptidase Z) Dextrinase
W: W) Trypsin
X: X) Pepsin
Y: Y) Carboxypeptidase
Z: Z) Dextrinase
Answer: Z) Z) Dextrinase
What botany term is used to describe horizontal shoots that grow just below the surface?
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If a 52 foot-long wire is bent to form a square, what is the length of the square’s diagonal?
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Robert is asked by his teacher to subtract 3 from a number and divide the result by 9. Instead, he subtracts 9 and then divides the result by 3, giving him 43. What is the correct answer to the teacher’s question?
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If an electron is excited to the \(n = 4\) energy level in hydrogen, what is the maximum number of emission lines you would observe?
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Most photosynthetically active radiation occurs in what two zones of the electromagnetic spectrum?
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What is the electronic geometry of a molecule with sp³ hybridization at its central atom?
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What chemical law predicts the response of a system at equilibrium to a perturbation in temperature, concentration, volume, or pressure by stating that the equilibrium shifts to counteract the change?
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After combing your hair, the comb becomes electrically charged. You then use the comb to pick up electrically neutral bits of paper, without making contact between the comb and the paper. What process allowed you to pick up the paper bits? W) Conduction X) Insulation Y) Magnetization Z) Polarization
W: W) Conduction
X: X) Insulation
Y: Y) Magnetization
Z: Z) Polarization
Answer: Z) Z) Polarization
What classic experiment used a squeeze-bulb atomizer to spray a mist of charged oil droplets between parallel plate electrodes?
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An outflow of charged particles from the sun that escapes the sun’s outer atmosphere is called: W) Solar discharge X) Solar flare Y) Solar wind Z) Solar gust
W: W) Solar discharge
X: X) Solar flare
Y: Y) Solar wind
Z: Z) Solar gust
Answer: Y) Y) Solar wind
When the air is saturated with moisture, which of the following statements is false? W) Relative humidity is equal to 100% X) Air temperature is equal to the dew point temperature Y) Air temperature is equal to the wet bulb temperature Z) An increase in temperature will produce condensation
W: W) Relative humidity is equal to 100%
X: X) Air temperature is equal to the dew point temperature
Y: Y) Air temperature is equal to the wet bulb temperature
Z: Z) An increase in temperature will produce condensation
Answer: Z) Z) An increase in temperature will produce condensation
Which of the following phases is typically the longest in a normal cell’s life cycle? W) Interphase X) Metaphase Y) Prophase Z) Anaphase
W: W) Interphase
X: X) Metaphase
Y: Y) Prophase
Z: Z) Anaphase
Answer: W) W) Interphase
What color does the normal human eye see when all cone opsins are stimulated equally?
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Lithium-ion batteries are finding use in replacing what type of battery, often found in automobiles?
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What form of renewable energy is responsible for producing the most electricity worldwide?
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Find the modulus of the complex conjugate of \(3 - 4i\).
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If you flip a coin five times, what is the probability that you will get at least two heads? W) 31/32 X) 13/16 Y) 25/32 Z) 9/16
W: W) 31/32
X: X) 13/16
Y: Y) 25/32
Z: Z) 9/16
Answer: X) X) 13/16
Identify all of the following three quantities that are considered state functions: 1) Enthalpy; 2) Heat; 3) Volume.
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Which of the following solutions, when mixed one-to-one, will exhibit the smallest deviation from Raoult’s law? W) Pentane and water X) Pentane and hexane Y) Chloroform and acetone Z) Water and ethanol
W: W) Pentane and water
X: X) Pentane and hexane
Y: Y) Chloroform and acetone
Z: Z) Water and ethanol
Answer: X) X) Pentane and hexane
The electromotive force is defined as: W) The maximum electric potential energy stored within a battery X) The maximum potential difference between the terminals of a battery Y) The force that accelerates electrons through a wire when a battery is connected to it Z) The maximum capacitance between the terminals of a battery
W: W) The maximum electric potential energy stored within a battery
X: X) The maximum potential difference between the terminals of a battery
Y: Y) The force that accelerates electrons through a wire when a battery is connected to it
Z: Z) The maximum capacitance between the terminals of a battery
Answer: X) X) The maximum potential difference between the terminals of a battery
On a large violin with strings that have a length of 0.5 meters between fixed points, a string has a linear mass density of 40 grams per meter and a fundamental frequency of 20 hertz. Calculate the frequency, in hertz, and wavelength, in centimeters rounded to the nearest integer, of the second overtone.
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In a soil profile, the oxidation of primary iron-bearing minerals results in which of the following? W) The soil becoming coarser grained X) The soil profile becoming redder Y) The soil profile becoming shallower Z) Does not change the soil profile
W: W) The soil becoming coarser grained
X: X) The soil profile becoming redder
Y: Y) The soil profile becoming shallower
Z: Z) Does not change the soil profile
Answer: X) X) The soil profile becoming redder
What determines when a tropical depression or storm is given hurricane status? W) Wind speed X) Central pressure Y) Diameter Z) Movement velocity
W: W) Wind speed
X: X) Central pressure
Y: Y) Diameter
Z: Z) Movement velocity
Answer: W) W) Wind speed
If \(\tfrac{1}{x} - \tfrac{1}{y} = \tfrac{1}{z}\), what does \(z\) equal in terms of \(x\) and \(y\)?
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Identify all of the following three numbers that are evenly divisible by eight: 1) 1,256,424; 2) 1,216; 3) 662,322.
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Which of the following quantum numbers describes the shape of the orbital? W) Principal X) Azimuthal Y) Magnetic Z) Spin
W: W) Principal
X: X) Azimuthal
Y: Y) Magnetic
Z: Z) Spin
Answer: X) X) Azimuthal
Which of the following is correct regarding a process that follows first-order kinetics? W) Reactant concentrations are constant with time X) Reactant concentrations decrease linearly with time Y) Reactant concentrations decrease quadratically with time Z) Reactant concentrations decrease exponentially with time
W: W) Reactant concentrations are constant with time
X: X) Reactant concentrations decrease linearly with time
Y: Y) Reactant concentrations decrease quadratically with time
Z: Z) Reactant concentrations decrease exponentially with time
Answer: Z) Z) Reactant concentrations decrease exponentially with time
What human body cells contain H bands, Z disks and I bands? W) Neurons X) Adipocytes Y) Skeletal muscle Z) Osteocytes
W: W) Neurons
X: X) Adipocytes
Y: Y) Skeletal muscle
Z: Z) Osteocytes
Answer: Y) Y) Skeletal muscle
In 1961, it was demonstrated that fibroblast cells can only divide about 50 times in culture, at which point the cell cycle halts before DNA replication. The reason for this limit on cell division, also called the Hayflick limit, is due to the loss of what chromosomal caps?
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Identify all of the following three values that can never be negative: 1) Entropy; 2) Change in entropy; 3) Bond enthalpy for breaking a bond.
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In a photovoltaic cell, what is generally the positive charge carrier?
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Which of the following components of a car provides the best example of a damped oscillator? W) Brakes X) Shock absorbers Y) Rack-and-pinion steering column Z) Differential
W: W) Brakes
X: X) Shock absorbers
Y: Y) Rack-and-pinion steering column
Z: Z) Differential
Answer: X) X) Shock absorbers
What is the change in potential energy, to the nearest one hundred joules, associated with a 100 kilogram rollercoaster descending 20.0 meters?
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Which of the following air masses is the densest? W) Continental tropical X) Continental polar Y) Maritime tropical Z) Maritime polar
W: W) Continental tropical
X: X) Continental polar
Y: Y) Maritime tropical
Z: Z) Maritime polar
Answer: X) X) Continental polar
When is a strong temperature inversion most likely to form? W) On a warm, windy night X) On a cool, windy night Y) On a rainy night with light winds Z) On a clear night with light winds
W: W) On a warm, windy night
X: X) On a cool, windy night
Y: Y) On a rainy night with light winds
Z: Z) On a clear night with light winds
Answer: Z) Z) On a clear night with light winds
Which of the following hormones is derived from cholesterol? W) Substance P X) Indoleacetic acid Y) Testosterone Z) Prolactin
W: W) Substance P
X: X) Indoleacetic acid
Y: Y) Testosterone
Z: Z) Prolactin
Answer: Y) Y) Testosterone
Cadherins are components of what type of cell junction?
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A basketball player makes 6 baskets during a game, each worth 2 or 3 points. How many different possible values exist for the total points scored by the player?
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How many positive integral factors exist for 1800?
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Identify all of the following three compounds that would form a solid state composed of molecules interacting through hydrogen bonds: 1) Water; 2) Acetone; 3) Silicon dioxide.
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Identify all of the following three statements concerning beryllium that are true: 1) Beryllium has a higher melting point than both magnesium and calcium; 2) Beryllium chloride has a higher ionic character than magnesium chloride; 3) Beryllium has a filled 2s subshell.
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What particles did Rutherford fire at gold foil in order to discover the nuclear model of the atom?
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A skateboarder is travelling down a quarter-circle curved ramp, where the whole circle has a perimeter of \(20\pi\) meters. Ignoring the spinning of the skateboard’s wheels, what is the skateboarder’s speed, in meters per second and to the nearest whole number, at the bottom of the ramp?
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