MS Sample Set 10, Round 10 from NSB
What is the slope-intercept equation of the line through the origin that contains the point (3, 6)?
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The mean of the numbers of weekly work hours for 11 part-time employees at Happy Dan’s is 24. The mean number of hours for 4 of the employees is 19. To the nearest whole number, what is the mean number of hours for the rest of Dan’s employees?
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What term is used to describe the natural separation of leaves from the body of the plant?
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Experiments crossing different colored pea plants demonstrate what genetic concept? W) Gametophyte reproductive cycles X) Haploid and diploid variation Y) Recessive and dominant genes Z) Mitotic division
W: W) Gametophyte reproductive cycles
X: X) Haploid and diploid variation
Y: Y) Recessive and dominant genes
Z: Z) Mitotic division
Answer: Y) Y) Recessive and dominant genes
What type of battery is commonly found in rechargeable consumer electronics? W) Alkaline X) Lead acid Y) Lithium-ion Z) Aluminum-air
W: W) Alkaline
X: X) Lead acid
Y: Y) Lithium-ion
Z: Z) Aluminum-air
Answer: Y) Y) Lithium-ion
In order for bioethanol to be miscible with gasoline, what contaminant must first be removed?
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How many electrons does argon have in its valence electron shell?
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How much work, in joules, is required to raise a 37-newton sofa 5 meters upward?
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The Gulf of Mexico Dead Zone is an ocean region with extremely low dissolved oxygen. What is the primary cause of this Dead Zone? W) Oil drilling X) Deep ocean upwelling Y) High salt content Z) Agricultural run-off
W: W) Oil drilling
X: X) Deep ocean upwelling
Y: Y) High salt content
Z: Z) Agricultural run-off
Answer: Z) Z) Agricultural run-off
Identify all of the following three solar system objects on which NASA has successfully soft-landed unmanned exploration vehicles: 1) Earth’s Moon; 2) The planet Mercury; 3) The asteroid Eros.
Choices:
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Which of the following is a best practice for immediate treatment of chemical burns of the skin? W) Moisturize with a light oil and cover X) Flush with copious amounts of water Y) Flush with a solution of silver nitrate and water Z) Neutralize with weak alkaline solutions
W: W) Moisturize with a light oil and cover
X: X) Flush with copious amounts of water
Y: Y) Flush with a solution of silver nitrate and water
Z: Z) Neutralize with weak alkaline solutions
Answer: X) X) Flush with copious amounts of water
Assuming the following numbers represent measured quantities, what is the quotient of 2.000 divided by 20.0? (Note: read all of the zeros.)
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What is the common name of the type of blood cells found in elevated numbers in a person who has an infection?
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The human retina is made up of tiny, light-sensitive cells. Which of these cells enable us to distinguish colors?
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What part of the sun is normally visible from Earth? W) Core X) Photosphere Y) Corona Z) Solar nebula
W: W) Core
X: X) Photosphere
Y: Y) Corona
Z: Z) Solar nebula
Answer: X) X) Photosphere
What two elements are the most abundant in the Earth’s crust?
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The first step of any vertebrate dissection laboratory should include which of the following? W) Examining any openings before making an incision X) Making a single cut along the ventral side Y) Properly mounting the specimen to the dissection tray Z) Identifying external features of your specimen
W: W) Examining any openings before making an incision
X: X) Making a single cut along the ventral side
Y: Y) Properly mounting the specimen to the dissection tray
Z: Z) Identifying external features of your specimen
Answer: Z) Z) Identifying external features of your specimen
What gas is most commonly found inside incandescent lightbulbs?
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What is the adjective for a chemical reaction that emits heat?
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Together, the Lorentz force law and Maxwell’s equations govern the behavior of what fundamental force?
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Mike works in sales at a video gaming store. This week the total amount that he sold is represented by V dollars. His manager tells him to increase his sales next week by 15%. Which of the following is a correct representation for the desired sales next week? W) V + 0.15 X) V + 15 Y) 0.15V Z) 1.15V
W: W) V + 0.15
X: X) V + 15
Y: Y) 0.15V
Z: Z) 1.15V
Answer: Z) Z) 1.15V
What is $\displaystyle \frac{8}{15} - \frac{22}{35}$?
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The use of coal to generate electricity in the U.S. has declined recently due to an abundance of what other fuel?
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What is the derivative of coal that is commonly used as the reducing agent when smelting metals?
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In a fission nuclear reactor, which of the following processes occurs, resulting in released energy? W) Neutrons split uranium atoms X) Uranium atoms spontaneously decay Y) Uranium atoms fuse Z) Alpha particles bombard uranium atoms
W: W) Neutrons split uranium atoms
X: X) Uranium atoms spontaneously decay
Y: Y) Uranium atoms fuse
Z: Z) Alpha particles bombard uranium atoms
Answer: W) W) Neutrons split uranium atoms
Which of the following correctly explains why cellulosic ethanol is more expensive to produce than starch ethanol? W) Cellulose is an expensive feedstock X) Conversion of glucose into ethanol is expensive Y) Cellulose contains many impurities that are expensive to remove Z) More chemical reactions must be performed
W: W) Cellulose is an expensive feedstock
X: X) Conversion of glucose into ethanol is expensive
Y: Y) Cellulose contains many impurities that are expensive to remove
Z: Z) More chemical reactions must be performed
Answer: Z) Z) More chemical reactions must be performed
What term describes the lowest temperature at which vapors will ignite given an ignition source?
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A 3-volt battery is connected to two 4-ohm resistors that are connected in parallel. What is the power, in watts, dissipated by this circuit?
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A student tests the germination of seeds to see if the amount of water affects the rate of germination. She uses 15 seeds wrapped in paper towels with varying amounts of water. What is her independent variable? W) The amount of water on each towel X) The type of seeds used Y) The number of seeds used Z) The rate of germination
W: W) The amount of water on each towel
X: X) The type of seeds used
Y: Y) The number of seeds used
Z: Z) The rate of germination
Answer: W) W) The amount of water on each towel
Which of the following statements is NOT true regarding Charles Darwin’s voyages aboard the HMS Beagle? W) Darwin formulated his famous theory of evolution during the voyages X) He traveled for nearly five years with the Beagle Y) He was an unpaid volunteer while onboard Z) He brought home thousands of skins, bones, and carcasses
W: W) Darwin formulated his famous theory of evolution during the voyages
X: X) He traveled for nearly five years with the Beagle
Y: Y) He was an unpaid volunteer while onboard
Z: Z) He brought home thousands of skins, bones, and carcasses
Answer: W) W) Darwin formulated his famous theory of evolution during the voyages
What chemical is released from mast cells during allergic response?
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In the body, beta-carotene is produced from what vitamin?
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Which of the following contain the most groundwater? W) Caves and lakes X) Pores and cracks Y) Tubes and tunnels Z) Rivers and streams
W: W) Caves and lakes
X: X) Pores and cracks
Y: Y) Tubes and tunnels
Z: Z) Rivers and streams
Answer: X) X) Pores and cracks
What layers of the Earth’s atmosphere are characterized by temperatures that increase with altitude?
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What is the degree measure of an angle that is the supplement of a one-degree angle?
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Solve the following equation for x: $$\sqrt{x + 20} = x$$
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What thermodynamic cycle describes a perfectly reversible engine?
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A chemical reaction will always be spontaneous under which of the following conditions? W) When it is endothermic and with a decrease in entropy X) When it is exothermic and with an increase in entropy Y) When it is exothermic and with a decrease in entropy Z) When it is endothermic and with an increase in entropy
W: W) When it is endothermic and with a decrease in entropy
X: X) When it is exothermic and with an increase in entropy
Y: Y) When it is exothermic and with a decrease in entropy
Z: Z) When it is endothermic and with an increase in entropy
Answer: X) X) When it is exothermic and with an increase in entropy
What is the term for the stalk of a leaf?
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What is the name of an infolding of the plasma membrane that is involved in photosynthesis and also extends into the cytoplasm?
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What is $$112 - 9^2$$?
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If the ratio of the heights of two similar circular cylinders is 3 to 2 and the surface area of the smaller cylinder is 268, what is the surface area of the larger cylinder?
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What is the term for an underground layer of permeable rock or loose sediments whose pore spaces are filled with water? W) Water table X) Aquifer Y) Well Z) Aquiclude
W: W) Water table
X: X) Aquifer
Y: Y) Well
Z: Z) Aquiclude
Answer: X) X) Aquifer
Which of the following describes one way that changes in land use may exacerbate global warming? W) By increasing the pH of the oceans X) By sequestering carbon from the atmosphere Y) By releasing stored carbon to the atmosphere Z) By reducing the solar constant
W: W) By increasing the pH of the oceans
X: X) By sequestering carbon from the atmosphere
Y: Y) By releasing stored carbon to the atmosphere
Z: Z) By reducing the solar constant
Answer: Y) Y) By releasing stored carbon to the atmosphere
Heating an endothermic reaction will shift equilibrium towards which of the following? W) An exothermic reaction X) The products Y) An explosion Z) The reactants
W: W) An exothermic reaction
X: X) The products
Y: Y) An explosion
Z: Z) The reactants
Answer: X) X) The products
When referring to the ground state and excited states of a molecule, what specific subatomic particles are changing in energy?
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