HS Sample Set 4, Round 1 from NSB
If a particle moves from a position of x = 5 meters out to x = 200 meters and back again to x = 5 meters, what is its displacement in meters?
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What are the two features of displacement?
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Which trophic level has the most energy? W) Consumers X) Decomposers Y) Producers Z) Scavengers
W: W) Consumers
X: X) Decomposers
Y: Y) Producers
Z: Z) Scavengers
Answer: Y) Y) Producers
Which is the approximate percentage of energy transfer from one trophic level to the next? W) 10% X) 50% Y) 75% Z) 100%
W: W) 10%
X: X) 50%
Y: Y) 75%
Z: Z) 100%
Answer: W) W) 10%
What is the greatest common factor of the terms in the expression $$\displaystyle 3x^5 y^2 + 6x^3 y^5$$?
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At what value of \(x\) is there a minimum for the function $$\displaystyle f(x) = x^2 - 6x$$?
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If a 250 acre farm were leased for wind development with income of \$50 per acre per year, how much income would be produced each year?
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Wind energy is the conversion of wind power into electricity, using wind turbines. Which of the following statements is true about wind energy systems? W) Wind turbines convert kinetic energy from the wind X) Wind farms have to be located on unoccupied pieces of land Y) Wind energy systems have high impact on air emissions Z) Construction costs for wind-powered generators are minimal
W: W) Wind turbines convert kinetic energy from the wind
X: X) Wind farms have to be located on unoccupied pieces of land
Y: Y) Wind energy systems have high impact on air emissions
Z: Z) Construction costs for wind-powered generators are minimal
Answer: W) W) Wind turbines convert kinetic energy from the wind
A compressional tectonic environment can result in all of the following, except: W) Folded mountains X) Basin and range Y) Volcanoes Z) Reverse faults
W: W) Folded mountains
X: X) Basin and range
Y: Y) Volcanoes
Z: Z) Reverse faults
Answer: X) X) Basin and range
The source of energy that drives a tsunami wave onto a shore originated: W) From the gravitational attraction between the Earth and the Moon X) Along the ocean floor Y) From tidal waves Z) In Earth's interior
W: W) From the gravitational attraction between the Earth and the Moon
X: X) Along the ocean floor
Y: Y) From tidal waves
Z: Z) In Earth's interior
Answer: Z) Z) In Earth's interior
When sound waves travelling through the air reach the human ear, the cochlea converts the sound wave into: W) A chemical response transmitted through the blood stream X) An electrical impulse sent to the brain Y) A lower frequency wave, which resonates within the ear Z) Many small wave vectors that are separately communicated to the brain
W: W) A chemical response transmitted through the blood stream
X: X) An electrical impulse sent to the brain
Y: Y) A lower frequency wave, which resonates within the ear
Z: Z) Many small wave vectors that are separately communicated to the brain
Answer: X) X) An electrical impulse sent to the brain
How does neural transmission across a synaptic gap occur? W) Neural impulses cause the release of neurotransmitters that diffuse across the gap X) Neural impulses open potassium-gated channels, allowing sodium to move across the gap Y) Neural impulses travel across the gap as unidirectional electrical currents Z) Neural impulses travel across the gap as multidirectional electrical currents
W: W) Neural impulses cause the release of neurotransmitters that diffuse across the gap
X: X) Neural impulses open potassium-gated channels, allowing sodium to move across the gap
Y: Y) Neural impulses travel across the gap as unidirectional electrical currents
Z: Z) Neural impulses travel across the gap as multidirectional electrical currents
Answer: W) W) Neural impulses cause the release of neurotransmitters that diffuse across the gap
Name a real number that does not have a multiplicative inverse.
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Given the function $$\displaystyle y = 4x - x^2$$, what are the two values of \(x\) for which \(y = 0\)?
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Which of the following statements is true about the Andes mountains? W) They are folded mountains X) They are volcanic mountains Y) They are near a spreading center Z) They are found along a transform boundary
W: W) They are folded mountains
X: X) They are volcanic mountains
Y: Y) They are near a spreading center
Z: Z) They are found along a transform boundary
Answer: X) X) They are volcanic mountains
The tectonic environment of Iceland is: W) A subduction zone X) Folded mountains Y) A mid-ocean ridge Z) A mid-plate hot spot
W: W) A subduction zone
X: X) Folded mountains
Y: Y) A mid-ocean ridge
Z: Z) A mid-plate hot spot
Answer: Y) Y) A mid-ocean ridge
As a fraction in lowest terms, what is the probability of rolling 1 or 3 on a standard 6-sided die?
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If you roll a standard 6-sided die 2 times, how many different outcomes are possible?
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Which of the following units can be used to express the volume of a liquid? W) Micrometers X) Milligrams Y) Grams per cubic centimeter Z) Nanoliters
W: W) Micrometers
X: X) Milligrams
Y: Y) Grams per cubic centimeter
Z: Z) Nanoliters
Answer: Z) Z) Nanoliters
What is the process by which electricity is used to split water into hydrogen and oxygen?
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Which of the following choices is NOT an example of a rigid body? W) Slinky X) Wheel Y) Pool ball Z) CD
W: W) Slinky
X: X) Wheel
Y: Y) Pool ball
Z: Z) CD
Answer: W) W) Slinky
Which of the following are transmitted by electromagnetic waves?
Choices:
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Which of the following is the best way to get a good view of a meteor shower? W) Watch it during a full moon X) Watch it from a city Y) Get as far away from urban light pollution as possible Z) Wear light clothing
W: W) Watch it during a full moon
X: X) Watch it from a city
Y: Y) Get as far away from urban light pollution as possible
Z: Z) Wear light clothing
Answer: Y) Y) Get as far away from urban light pollution as possible
Most streams and swarms of meteoroids are believed to be fragments of what celestial body?
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The combined genetic information of all the members of a particular population is known as the: W) Allele frequency X) Genome Y) Directional selection Z) Gene pool
W: W) Allele frequency
X: X) Genome
Y: Y) Directional selection
Z: Z) Gene pool
Answer: Z) Z) Gene pool
The black fur allele B is dominant over the white fur allele b. Two mice with black fur mate, producing four offspring: one is white and three are black. What are the likely genotypes of the two parents? W) Bb and Bb X) BB and Bb Y) BB and BB Z) BB and bb
W: W) Bb and Bb
X: X) BB and Bb
Y: Y) BB and BB
Z: Z) BB and bb
Answer: W) W) Bb and Bb
What is the process by which particles move from an area of higher concentration to an area of lower concentration, not requiring cellular energy?
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Which of the following substances is transported into cells via carrier-assisted transport? W) Water X) Carbon dioxide Y) Oxygen Z) Sodium ion
W: W) Water
X: X) Carbon dioxide
Y: Y) Oxygen
Z: Z) Sodium ion
Answer: Z) Z) Sodium ion
For a series of chemical reactions, Hess's law provides a method for the summation of which property? W) Heat of formation X) Entropy Y) Equilibrium constant Z) Reaction rate
W: W) Heat of formation
X: X) Entropy
Y: Y) Equilibrium constant
Z: Z) Reaction rate
Answer: W) W) Heat of formation
What is the difference between heat and temperature? W) Temperature is a form of heat, while heat is a measurement X) Temperature is a measurement of molecular kinetic energy, while heat is a form of energy Y) Heat and temperature have different wavelengths Z) Heat and temperature have similar wavelengths but different amplitudes
W: W) Temperature is a form of heat, while heat is a measurement
X: X) Temperature is a measurement of molecular kinetic energy, while heat is a form of energy
Y: Y) Heat and temperature have different wavelengths
Z: Z) Heat and temperature have similar wavelengths but different amplitudes
Answer: X) X) Temperature is a measurement of molecular kinetic energy, while heat is a form of energy
If a car is accelerating along a road, the force acting on the car that causes it to move forward is the reaction force from the car pushing on the ground. What is this reaction force due to?
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If a car is accelerating along a road, what force due to the air does the frictional force have to oppose?
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What is a Robonaut?
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In 10,000 to 13,000 years, what bright star will the Earth's axis point to next?
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Given the equation $$\displaystyle 2x - y + 5 = 0$$, find the slope and y-intercept of the line it represents.
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The equation $$x^2 + y^2 = 121$$ with x > 0 and y < 0 would result in the graph of: W) A semicircle below the x-axis X) A quarter circle in the 2nd quadrant Y) A quarter circle in the 4th quadrant Z) A complete circle with a radius of 11
W: W) A semicircle below the x-axis
X: X) A quarter circle in the 2nd quadrant
Y: Y) A quarter circle in the 4th quadrant
Z: Z) A complete circle with a radius of 11
Answer: Y) Y) A quarter circle in the 4th quadrant
Some plants spread their pollen via the wind while others use animals to spread their pollen. When a plant uses an animal to spread its pollen, this type of pollination is called: W) Vector pollination X) Seed dispersal Y) Evolutionary adaptation Z) Reproductive guarantee
W: W) Vector pollination
X: X) Seed dispersal
Y: Y) Evolutionary adaptation
Z: Z) Reproductive guarantee
Answer: W) W) Vector pollination
What is the most common term for the stage of photosynthesis during which carbon fixation occurs?
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What is the oxidation state of hydrogen in H$_2$?
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What is the oxidation state of hydrogen in LiAlH$_4$?
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What are the two forms of electrical current?
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Which of the following is the most common method of producing alternating current? W) Circuits varying from parallel to series X) Switches automatically turning on and off Y) Turbines rotating backwards and forwards Z) Magnets spinning in a coil of wire
W: W) Circuits varying from parallel to series
X: X) Switches automatically turning on and off
Y: Y) Turbines rotating backwards and forwards
Z: Z) Magnets spinning in a coil of wire
Answer: Z) Z) Magnets spinning in a coil of wire
Which of the following relationships is true? W) 1 food calorie is equal to 4.18 kilojoules X) 1 joule is equal to 1 food calorie Y) 1 joule is equal to 4.18 food calories Z) 1 food calorie is equal to 4.18 joules
W: W) 1 food calorie is equal to 4.18 kilojoules
X: X) 1 joule is equal to 1 food calorie
Y: Y) 1 joule is equal to 4.18 food calories
Z: Z) 1 food calorie is equal to 4.18 joules
Answer: W) W) 1 food calorie is equal to 4.18 kilojoules
In order to calculate the heat of fusion for a piece of ice placed in warm water, you must know: W) The energy released by the warm water and the mass of the water X) The energy released by the warm water and the mass of the ice Y) The energy released by the ice and the mass of the warm water Z) The energy released by the ice and the mass of ice
W: W) The energy released by the warm water and the mass of the water
X: X) The energy released by the warm water and the mass of the ice
Y: Y) The energy released by the ice and the mass of the warm water
Z: Z) The energy released by the ice and the mass of ice
Answer: X) X) The energy released by the warm water and the mass of the ice
If the distribution graph of a set of data has a positive skew, then which tail of the graph is longer?
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Give the median for the following data set: 1, 2, 7, 7, 8, 9, 10, 11.
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A kilowatt-hour is a unit of: W) Charge X) Power Y) Energy Z) Electric potential
W: W) Charge
X: X) Power
Y: Y) Energy
Z: Z) Electric potential
Answer: Y) Y) Energy
What is the Gibbs free energy, in joules, of chlorine gas formation?
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Consider two beaches, both with source material from the same granitic mountains. The beach located further from the mountains would have: W) Dark, more angular particles X) Dark, rounder particles Y) Pink, more poorly sorted sediments Z) Lighter-colored, more well-rounded, finer particles
W: W) Dark, more angular particles
X: X) Dark, rounder particles
Y: Y) Pink, more poorly sorted sediments
Z: Z) Lighter-colored, more well-rounded, finer particles
Answer: Z) Z) Lighter-colored, more well-rounded, finer particles
Which of the following is NOT a mechanism of physical and chemical weathering? W) Mass wasting X) Glaciation Y) Frost wedging Z) Groundwater
W: W) Mass wasting
X: X) Glaciation
Y: Y) Frost wedging
Z: Z) Groundwater
Answer: W) W) Mass wasting