MS Sample Set 8, Round 10 from NSB
If θ₁ and θ₂ are complementary angles then which of the following is always correct? W) tan θ₁ = – tan θ₂ X) sin θ₁ = sin θ₂ Y) sin θ₁ = cos θ₂ Z) cos θ₁ = cos θ₂
W: W) tan θ₁ = – tan θ₂
X: X) sin θ₁ = sin θ₂
Y: Y) sin θ₁ = cos θ₂
Z: Z) cos θ₁ = cos θ₂
Answer: Y) Y) sin θ₁ = cos θ₂
Evaluate the expression $$x^2 - 6x + 9$$ when $$x = 3 - 2\sqrt{7}$$.
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Which of the following organisms has a carapace? W) Crayfish X) Jellyfish Y) Limpet Z) Starfish
W: W) Crayfish
X: X) Jellyfish
Y: Y) Limpet
Z: Z) Starfish
Answer: W) W) Crayfish
Which of the following is NOT a main class of connective tissue in humans? W) Cellular X) Connective tissue proper Y) Cartilage Z) Osseous
W: W) Cellular
X: X) Connective tissue proper
Y: Y) Cartilage
Z: Z) Osseous
Answer: W) W) Cellular
What is the term for an earthquake’s initial rupture point?
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Which of the following is NOT a consequence of a drought? W) Increased electricity due to wind generation X) Snake migration and increases in snake bites Y) Diminished crop yields Z) Dust storms
W: W) Increased electricity due to wind generation
X: X) Snake migration and increases in snake bites
Y: Y) Diminished crop yields
Z: Z) Dust storms
Answer: W) W) Increased electricity due to wind generation
Which of the following colors has the highest energy photons? W) Yellow X) Green Y) Blue Z) Red
W: W) Yellow
X: X) Green
Y: Y) Blue
Z: Z) Red
Answer: Y) Y) Blue
Performing electrolysis on water results in the production of which two diatomic gases?
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What happens to the wavelength and frequency of a wave when the amplitude of a wave increases? W) It stays the same X) It decreases then increases Y) It decreases Z) It increases
W: W) It stays the same
X: X) It decreases then increases
Y: Y) It decreases
Z: Z) It increases
Answer: W) W) It stays the same
What temperature in degrees Fahrenheit is equivalent to 10 °C?
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Jared has two standard 6-sided dice, one white and one red. If Jared tosses the dice, what is the probability he will get 4 on the white die and an odd number on the red die? W) 1/18 X) 1/12 Y) 1/6 Z) 5/18
W: W) 1/18
X: X) 1/12
Y: Y) 1/6
Z: Z) 5/18
Answer: X) X) 1/12
What fraction of the non-negative integers less than 30 are prime?
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What is the amperage in the following circuit: a 14 V power source and four 7 Ω light bulbs in series? W) 14 A X) 2 A Y) 1/2 A Z) None of these
W: W) 14 A
X: X) 2 A
Y: Y) 1/2 A
Z: Z) None of these
Answer: Y) Y) 1/2 A
What is the name of the process by which humans extract energy from the chemical bonds in food?
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Which of the following types of interactions will NOT occur between enzymes and their substrates? W) Covalent bonding X) Ionic bonding Y) Hydrophobic interactions Z) Van der Waals interactions
W: W) Covalent bonding
X: X) Ionic bonding
Y: Y) Hydrophobic interactions
Z: Z) Van der Waals interactions
Answer: W) W) Covalent bonding
Until recently, it was thought that the ecologically significant process of nitrogen fixation could only happen in the absence of what oxidant?
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Which of the following is a stratovolcano? W) Galapagos Islands X) Olympus Mons Y) Mount St. Helens Z) The Hawaiian Island chain
W: W) Galapagos Islands
X: X) Olympus Mons
Y: Y) Mount St. Helens
Z: Z) The Hawaiian Island chain
Answer: Y) Y) Mount St. Helens
The United States hosts a geologic Sword of Damocles: the supervolcano. Under what national park is this supervolcano located?
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Which organelle is one of the defining characteristics of eukaryotic cells and is not present at all in prokaryotic cells?
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Which of the following is NOT a trait of RNA which has been used to explain why it may have preceded DNA as the first information molecule? W) RNA can be replicated X) RNA can be catalytic Y) RNA is less stable than DNA Z) RNA is more stable than DNA
W: W) RNA can be replicated
X: X) RNA can be catalytic
Y: Y) RNA is less stable than DNA
Z: Z) RNA is more stable than DNA
Answer: Z) Z) RNA is more stable than DNA
Stars are composed of a number of elements at their birth. Which of the following elements has the HIGHEST percent composition when a star is born? W) Hydrogen X) Neon Y) Oxygen Z) Helium
W: W) Hydrogen
X: X) Neon
Y: Y) Oxygen
Z: Z) Helium
Answer: W) W) Hydrogen
Which of the following best describes chlorine at room temperature? W) A colorless gas X) A greenish-yellow gas Y) A reddish-brown liquid Z) A steel-gray solid
W: W) A colorless gas
X: X) A greenish-yellow gas
Y: Y) A reddish-brown liquid
Z: Z) A steel-gray solid
Answer: X) X) A greenish-yellow gas
Which of the following CANNOT be the lengths of the sides of a triangle? W) 1, 1, 1 X) 1, 2, 4 Y) 1, 75, 75 Z) 2, 3, 4
W: W) 1, 1, 1
X: X) 1, 2, 4
Y: Y) 1, 75, 75
Z: Z) 2, 3, 4
Answer: X) X) 1, 2, 4
The average of a set of 6 numbers is 9. When one more number is added, the average increases by 2. What number was added?
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Which animal might live in a kelp forest? W) Beaver X) Otter Y) Seal Z) Oyster
W: W) Beaver
X: X) Otter
Y: Y) Seal
Z: Z) Oyster
Answer: X) X) Otter
The seed coat of angiosperm seeds typically develops from which of the following? W) Integuments X) Polar nuclei Y) Nucleus Z) Cotyledons
W: W) Integuments
X: X) Polar nuclei
Y: Y) Nucleus
Z: Z) Cotyledons
Answer: W) W) Integuments
Which of the following is NOT an important component of the hydrologic cycle? W) Transpiration X) Condensation Y) Runoff Z) Respiration
W: W) Transpiration
X: X) Condensation
Y: Y) Runoff
Z: Z) Respiration
Answer: Z) Z) Respiration
What kind of tide should be expected on June 10 if the last full moon was May 21?
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Endoplasmic reticulum is the site inside the cell where proteins and membranes are formed. There are two types: smooth and rough. What is the name of the structures present only on rough but absent on smooth endoplasmic reticulum?
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What is another name for hurricanes or tropical cyclones in the western Pacific area and China seas?
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Which of the following represents a typical rechargeable battery? W) Carbon zinc X) Alkaline Y) Magnesium aluminum Z) Nickel cadmium
W: W) Carbon zinc
X: X) Alkaline
Y: Y) Magnesium aluminum
Z: Z) Nickel cadmium
Answer: Z) Z) Nickel cadmium
Some devices use electricity even after they are turned off. What is the term for this phenomenon? W) Efficiency load X) Phantom load Y) Voltage drop Z) Wattage reduction
W: W) Efficiency load
X: X) Phantom load
Y: Y) Voltage drop
Z: Z) Wattage reduction
Answer: X) X) Phantom load
Which of the following loses its valence electrons the most readily? W) Active nonmetal X) Active metal Y) Inactive nonmetal Z) Inactive metal
W: W) Active nonmetal
X: X) Active metal
Y: Y) Inactive nonmetal
Z: Z) Inactive metal
Answer: X) X) Active metal
What is happening when an atom gives up an electron to another atom, thus forming two ions of opposite charge and greater stability?
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At what point do the lines x = 4 and y = x – 4 intersect when graphed in the coordinate plane? W) (0, 4) X) (4, 0) Y) (0, –4) Z) (–4, 0)
W: W) (0, 4)
X: X) (4, 0)
Y: Y) (0, –4)
Z: Z) (–4, 0)
Answer: X) X) (4, 0)
What is the 21st term of the arithmetic sequence with first three terms –18, –12, –6?
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Which of the following is a major reason for “dead zones” in the ocean? W) Too many predators X) Use of fertilizers Y) Lack of upwelling Z) Recreational ocean use
W: W) Too many predators
X: X) Use of fertilizers
Y: Y) Lack of upwelling
Z: Z) Recreational ocean use
Answer: X) X) Use of fertilizers
In an experiment, you expect a plant to photosynthesize optimally with 440 nm of light. Instead you observe optimal photosynthesis at 460 nm. This is most likely due to the presence of what pigment?
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What type of highly efficient battery is used for electric vehicles?
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In watts, how much power is consumed by a circuit that has a resistance of 10 Ω at a current of 3 A? W) 30 X) 45 Y) 90 Z) 180
W: W) 30
X: X) 45
Y: Y) 90
Z: Z) 180
Answer: Y) Y) 90
Which of the following is NOT associated with active margins? W) Earthquakes X) Subduction zones Y) Transform faults Z) Hot spot volcanism
W: W) Earthquakes
X: X) Subduction zones
Y: Y) Transform faults
Z: Z) Hot spot volcanism
Answer: Z) Z) Hot spot volcanism
A long straight shoreline faces northeast. Waves approach the beach from the north and wave refraction bends the waves to the shore. In what direction will the resulting longshore current flow? W) Southeast X) Southwest Y) Northeast Z) Northwest
W: W) Southeast
X: X) Southwest
Y: Y) Northeast
Z: Z) Northwest
Answer: W) W) Southeast
What is a common example of a seasonal immune system response?
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How many phases does the Moon have? W) 4 X) 6 Y) 8 Z) 10
W: W) 4
X: X) 6
Y: Y) 8
Z: Z) 10
Answer: Y) Y) 8
Thermal energy spontaneously flows from which of the following? W) Gas to a liquid X) A liquid to a solid Y) A warmer region to a cooler region Z) A freezing material to a boiling material
W: W) Gas to a liquid
X: X) A liquid to a solid
Y: Y) A warmer region to a cooler region
Z: Z) A freezing material to a boiling material
Answer: Y) Y) A warmer region to a cooler region
The penultimate fate of most low mass stars is which of the following? W) Blue dwarf X) Neutrino Y) Black hole Z) White dwarf
W: W) Blue dwarf
X: X) Neutrino
Y: Y) Black hole
Z: Z) White dwarf
Answer: Z) Z) White dwarf