MS Sample Set 8, Round 9 from NSB
How many neutrons does fluorine-19 have? W) 8 X) 9 Y) 10 Z) 11
W: W) 8
X: X) 9
Y: Y) 10
Z: Z) 11
Answer: Y) Y) 10
What is the frequency of a wave with a velocity of 10 meters per second and wavelength of 20 meters? W) 0.1 Hz X) 0.5 Hz Y) 5 Hz Z) 10 Hz
W: W) 0.1 Hz
X: X) 0.5 Hz
Y: Y) 5 Hz
Z: Z) 10 Hz
Answer: X) X) 0.5 Hz
What is the term for the dark, broad plains on the surface of the Moon?
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A long stretch of beach is east facing with a southerly longshore current. The construction of an artificial groin will lead to which of the following? W) Increased erosion on both sides of the groin X) Loss of beach south of the groin Y) Sand bar formation south of the groin Z) Change in the direction of the longshore current
W: W) Increased erosion on both sides of the groin
X: X) Loss of beach south of the groin
Y: Y) Sand bar formation south of the groin
Z: Z) Change in the direction of the longshore current
Answer: X) X) Loss of beach south of the groin
A jar contains only red marbles and green marbles. If a marble is selected at random from the jar, the probability that a red marble will be selected is 2/3. If there are 36 green marbles in the jar, how many red marbles are there in the jar? W) 18 X) 24 Y) 54 Z) 72
W: W) 18
X: X) 24
Y: Y) 54
Z: Z) 72
Answer: Z) Z) 72
What is the base-ten equivalent of the base-six number “four five”?
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Photovoltaic solar trackers can track which of the following in order to further increase power production? W) Azimuth angle X) Power angle Y) Power factor Z) Declination angle
W: W) Azimuth angle
X: X) Power angle
Y: Y) Power factor
Z: Z) Declination angle
Answer: W) W) Azimuth angle
How much energy is released when converting 1.5 kilograms of iron oxide to iron if the heat of fusion is 272 kilojoules per kilogram?
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Bacteria are commonly used to produce which of the following? W) Gelatin X) Wine Y) Pasteurized milk Z) Vinegar
W: W) Gelatin
X: X) Wine
Y: Y) Pasteurized milk
Z: Z) Vinegar
Answer: Z) Z) Vinegar
Which of the following terms is used to define benthic organisms that live in the spaces between particles of sediment? W) Epifauna X) Infauna Y) Meiofauna Z) Sessile
W: W) Epifauna
X: X) Infauna
Y: Y) Meiofauna
Z: Z) Sessile
Answer: Y) Y) Meiofauna
Many ducks have oils on their feathers so that their feathers do not get wet. What type of interaction is occurring between the feathers and water? W) Hydrophobic X) Hygroscopic Y) Hydrophilic Z) Heliophobic
W: W) Hydrophobic
X: X) Hygroscopic
Y: Y) Hydrophilic
Z: Z) Heliophobic
Answer: W) W) Hydrophobic
Which cambium layer gives rise to secondary phloem and secondary xylem? W) Primary X) Secondary Y) Tertiary Z) Pro
W: W) Primary
X: X) Secondary
Y: Y) Tertiary
Z: Z) Pro
Answer: X) X) Secondary
Which of the following is a force that will always decrease the efficiency of a mechanical system? W) Gravity X) Spring force Y) Magnetic force Z) Friction
W: W) Gravity
X: X) Spring force
Y: Y) Magnetic force
Z: Z) Friction
Answer: Z) Z) Friction
The mass of most distant stars is estimated by astronomers by measuring which of the following? W) The speed at which a star is rotating on its axis X) The distance between Earth and the star Y) The gravitation attraction of the star and nearby planetary objects Z) The speed of light traveling from that star to Earth
W: W) The speed at which a star is rotating on its axis
X: X) The distance between Earth and the star
Y: Y) The gravitation attraction of the star and nearby planetary objects
Z: Z) The speed of light traveling from that star to Earth
Answer: Y) Y) The gravitation attraction of the star and nearby planetary objects
What element is being produced in abundance by the nuclear reaction in the Sun?
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What mineral is used in its molten state as a necessary part of the Hall-Héroult process? W) Cryolite X) Kaolin Y) Bentonite Z) Malachite
W: W) Cryolite
X: X) Kaolin
Y: Y) Bentonite
Z: Z) Malachite
Answer: W) W) Cryolite
What is the period of semi-diurnal tides? W) 11 hours and 22 minutes X) 12 hours Y) 12 hours and 25 minutes Z) 13 hours and 5 minutes
W: W) 11 hours and 22 minutes
X: X) 12 hours
Y: Y) 12 hours and 25 minutes
Z: Z) 13 hours and 5 minutes
Answer: Y) Y) 12 hours and 25 minutes
What ocean floor feature is found along the South Pacific Ocean that is not found along the South Atlantic Ocean? W) Abyssal plain X) Mid-ocean ridge Y) Deep-ocean trench Z) Continental shelf
W: W) Abyssal plain
X: X) Mid-ocean ridge
Y: Y) Deep-ocean trench
Z: Z) Continental shelf
Answer: Y) Y) Deep-ocean trench
For two particular numbers \(x\) and \(y\), the values of \(x - y\) and \(2x - y\) are consecutive odd integers in increasing order. What is the value of \(x\)? W) –1 X) 0 Y) 1 Z) 2
W: W) –1
X: X) 0
Y: Y) 1
Z: Z) 2
Answer: Z) Z) 2
Simplify the expression: 3/(5 − √10) $$\displaystyle \frac{3}{5 - \sqrt{10}}$$
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Within the chloroplast, where do the light-dependent reactions and light-independent reactions occur, respectively?
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A photosynthetic cell might have more of what organelle than a non-photosynthetic cell? W) Peroxisomes X) Mitochondria Y) Free ribosomes Z) Cytosol
W: W) Peroxisomes
X: X) Mitochondria
Y: Y) Free ribosomes
Z: Z) Cytosol
Answer: W) W) Peroxisomes
Ribosomes are cellular structures critical for protein synthesis. In what specific structure in the nucleus are ribosomes produced?
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El Niño Southern Oscillation can cause all EXCEPT which of the following? W) Increased productivity in South American fisheries X) Increased rainfall in the Western Pacific Y) Weakened equatorial trade winds Z) A deeper thermocline in the south-eastern Pacific
W: W) Increased productivity in South American fisheries
X: X) Increased rainfall in the Western Pacific
Y: Y) Weakened equatorial trade winds
Z: Z) A deeper thermocline in the south-eastern Pacific
Answer: W) W) Increased productivity in South American fisheries
Why does the pressure exerted by a gas against a sealed container increase as the temperature increases? W) The gas molecules move faster and strike the container wall more frequently X) The gas molecules gain more entropy and hence produce more pressure Y) The gas molecules generate more collision energy Z) The increased kinetic energy increases the rate of chemical reactions between gas particles
W: W) The gas molecules move faster and strike the container wall more frequently
X: X) The gas molecules gain more entropy and hence produce more pressure
Y: Y) The gas molecules generate more collision energy
Z: Z) The increased kinetic energy increases the rate of chemical reactions between gas particles
Answer: W) W) The gas molecules move faster and strike the container wall more frequently
During winter in the northern hemisphere, what is the northernmost latitude at which the Sun is visible above the horizon? W) Tropic of Cancer X) Tropic of Capricorn Y) Arctic Circle Z) Antarctic Circle
W: W) Tropic of Cancer
X: X) Tropic of Capricorn
Y: Y) Arctic Circle
Z: Z) Antarctic Circle
Answer: Y) Y) Arctic Circle
What kind of telescope lens will focus two colors of light at the same distance?
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Which of the following margins is considered active? W) Eastern North American X) Western African Y) Eastern Indian Z) Northeastern Eurasian
W: W) Eastern North American
X: X) Western African
Y: Y) Eastern Indian
Z: Z) Northeastern Eurasian
Answer: Z) Z) Northeastern Eurasian
Casey poured sand into a box measuring 4 inches by 16 inches by 8 inches until it was completely full. She then dumped all the sand into a plastic cube and discovered that the cube held the exact same amount of sand. In inches, how long was the edge of the cube?
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Provided \(x\) is a value for which it is defined, simplify the expression: $$\displaystyle \frac{x\sqrt{8} - \sqrt{32}}{x^2 - 4}$$ W) $$\displaystyle \frac{x + 2}{x\sqrt{2}}$$ X) $$\displaystyle \frac{2\sqrt{2}}{x + 2}$$ Y) $$\displaystyle \frac{2 - x}{2\sqrt{2}}$$ Z) $$\displaystyle \frac{x - 2}{2\sqrt{2}}$$
W: W) $$\displaystyle \frac{x + 2}{x\sqrt{2}}$$
X: X) $$\displaystyle \frac{2\sqrt{2}}{x + 2}$$
Y: Y) $$\displaystyle \frac{2 - x}{2\sqrt{2}}$$
Z: Z) $$\displaystyle \frac{x - 2}{2\sqrt{2}}$$
Answer: X) X) $$\displaystyle \frac{2\sqrt{2}}{x + 2}$$
A sea dragon mimics what to stay camouflaged? W) Rock X) Coral Y) Seaweed Z) Kelp
W: W) Rock
X: X) Coral
Y: Y) Seaweed
Z: Z) Kelp
Answer: Y) Y) Seaweed
What is the term for the process of breaking up a molecule with water?
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Which of the following lists the primary gases found in the Earth’s atmosphere from the most to the least common? W) Argon, nitrogen, oxygen, carbon dioxide X) Oxygen, carbon dioxide, nitrogen, argon Y) Nitrogen, oxygen, carbon dioxide, argon Z) Nitrogen, oxygen, argon, carbon dioxide
W: W) Argon, nitrogen, oxygen, carbon dioxide
X: X) Oxygen, carbon dioxide, nitrogen, argon
Y: Y) Nitrogen, oxygen, carbon dioxide, argon
Z: Z) Nitrogen, oxygen, argon, carbon dioxide
Answer: Z) Z) Nitrogen, oxygen, argon, carbon dioxide
Rank the following mountain chains from shortest to longest:
Choices:
Correct Order:
Air drag opposes any motion of an object through air and is proportional to the velocity of the object. In free fall, what is the common name for the speed at which the drag force equates the gravitational force acting on a given object?
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A modern camera allows light to hit its sensor through a circular opening called an aperture. Assuming the amount of light per area is uniform, by what factor must the radius of the aperture be multiplied to double the amount of light hitting the sensor? W) 1/2 X) √2 Y) 2 Z) 4
W: W) 1/2
X: X) √2
Y: Y) 2
Z: Z) 4
Answer: X) X) √2
What is the theoretical maximum voltage that can be produced from a hydrogen fuel cell? W) 0.41 volts per cell X) 0.75 volts per cell Y) 1.23 volts per cell Z) 2.54 volts per cell
W: W) 0.41 volts per cell
X: X) 0.75 volts per cell
Y: Y) 1.23 volts per cell
Z: Z) 2.54 volts per cell
Answer: Y) Y) 1.23 volts per cell
What is the total resistance of a circuit with the following resistors in series: 6 Ω, 0.5 Ω, and 1.5 Ω, all in parallel with a 3 Ω resistor?
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What constellation occupies the largest area in the sky?
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The lack of foraminiferal and other carbonate oozes at depths greater than 4 km is explained by which of the following? W) Foraminifera or other shelled organisms cannot exist at this depth due to pressure X) Deep sea decomposers break down carbonate shells Y) Carbonate shells dissolve at depths below the carbonate compensation depth Z) Hydrothermal vent activity at depths exceeding 4 km create highly acidic deep ocean environments, limiting the ability for organisms to live
W: W) Foraminifera or other shelled organisms cannot exist at this depth due to pressure
X: X) Deep sea decomposers break down carbonate shells
Y: Y) Carbonate shells dissolve at depths below the carbonate compensation depth
Z: Z) Hydrothermal vent activity at depths exceeding 4 km create highly acidic deep ocean environments, limiting the ability for organisms to live
Answer: Y) Y) Carbonate shells dissolve at depths below the carbonate compensation depth
For real values of \(n\) and \(k\), which of the following expressions is equal to \(5^n \times 5^k\)? W) $$5^{n+k}$$ X) $$5^{nk}$$ Y) $$5^{n-k}$$ Z) $$5^{\frac{n}{k}}$$
W: W) $$5^{n+k}$$
X: X) $$5^{nk}$$
Y: Y) $$5^{n-k}$$
Z: Z) $$5^{\frac{n}{k}}$$
Answer: W) W) $$5^{n+k}$$
What is the tangent of angle A if the cosine of angle A measures 3/5 and the sine of angle A measures 4/5?
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What are the four traditional kingdoms of the domain Eukarya?
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What is the purpose of the Eustachian tube? W) It improves outer ear transmission of sound X) It improves vibration of the malleus Y) It assists in decreasing hearing Z) It clears mucous from the middle ear into the throat
W: W) It improves outer ear transmission of sound
X: X) It improves vibration of the malleus
Y: Y) It assists in decreasing hearing
Z: Z) It clears mucous from the middle ear into the throat
Answer: Z) Z) It clears mucous from the middle ear into the throat
Which of the following models primary succession of a region? W) Soil, trees, grasses X) Grasses, trees, shrubs, flowering plants Y) Bare rock, pioneer community, climax community Z) Regolith, colonial community, domestic community
W: W) Soil, trees, grasses
X: X) Grasses, trees, shrubs, flowering plants
Y: Y) Bare rock, pioneer community, climax community
Z: Z) Regolith, colonial community, domestic community
Answer: Y) Y) Bare rock, pioneer community, climax community
What is the difference between basic and applied science? W) Basic science is less difficult than applied science X) Basic science describes fundamental phenomena while applied science seeks to address practical problems Y) Basic science seeks to address practical problems while applied science seeks to describe fundamental phenomena Z) Basic science is essential to understanding the world whereas applied science does not have practical implications
W: W) Basic science is less difficult than applied science
X: X) Basic science describes fundamental phenomena while applied science seeks to address practical problems
Y: Y) Basic science seeks to address practical problems while applied science seeks to describe fundamental phenomena
Z: Z) Basic science is essential to understanding the world whereas applied science does not have practical implications
Answer: X) X) Basic science describes fundamental phenomena while applied science seeks to address practical problems