MS Sample Set 10, Round 3 from NSB
Which of the following is closest to the ratio of nitrogen molecules to oxygen molecules in the air? W) 1 to 4 X) 1 to 3 Y) 3 to 1 Z) 4 to 1
W: W) 1 to 4
X: X) 1 to 3
Y: Y) 3 to 1
Z: Z) 4 to 1
Answer: Z) Z) 4 to 1
Assuming that the following numbers represent measurements, and giving your answer with the correct number of significant figures, simplify the following expression: 2.5 + 0.50 + 0.055.
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Evaluate the following expression: $$14 - 6 \times 5$$
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A right triangle has leg lengths 3 and 4. A similar triangle has its shorter leg of length 12. What is the length of the hypotenuse in the larger triangle?
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What is the Earth's most abundant energy source?
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Approximately 45% of biomass energy production in the US comes from what fuel source? W) Landfill gas X) Solid waste Y) Wood Z) Biogas
W: W) Landfill gas
X: X) Solid waste
Y: Y) Wood
Z: Z) Biogas
Answer: Y) Y) Wood
One kilogram of which of the following has the most energy? W) Ice at 0 degrees Celsius X) Water at 0 degrees Celsius Y) Water at 100 degrees Celsius Z) Steam at 100 degrees Celsius
W: W) Ice at 0 degrees Celsius
X: X) Water at 0 degrees Celsius
Y: Y) Water at 100 degrees Celsius
Z: Z) Steam at 100 degrees Celsius
Answer: Z) Z) Steam at 100 degrees Celsius
What element in coal has the greatest mass fraction?
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In what layer of Earth's atmosphere does nearly all weather occur?
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In general, what is the minimum number of land-based seismic station measurements needed to determine the location of an earthquake?
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What term is used to describe organisms that help break down existing plant or animal tissue?
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If birth and death rates are equal and a population is growing, what is the most likely relationship between immigration and emigration? W) More immigration than emigration X) Less immigration than emigration Y) The same amount of immigration as emigration Z) Emigration, but no immigration
W: W) More immigration than emigration
X: X) Less immigration than emigration
Y: Y) The same amount of immigration as emigration
Z: Z) Emigration, but no immigration
Answer: W) W) More immigration than emigration
What two elements primarily make up the core of the Earth?
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Most of the CO₂ presently entering Earth's atmosphere is generated by human activities. Which of the following is closest to the percentage of CO₂ released into the atmosphere by land and sea volcanoes combined? W) 1 X) 5 Y) 10 Z) 15
W: W) 1
X: X) 5
Y: Y) 10
Z: Z) 15
Answer: W) W) 1
If you were to design an experiment to see how high a ball bounces in response to the height from which it is dropped, what would be your independent variable?
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What temperature in degrees Celsius is equivalent to 50 degrees Fahrenheit?
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Prokaryotic cells divide by the process of: W) Fusion X) Osmosis Y) Mitosis Z) Binary fission
W: W) Fusion
X: X) Osmosis
Y: Y) Mitosis
Z: Z) Binary fission
Answer: Z) Z) Binary fission
What is the limiting factor for phytoplankton productivity in the tropical open ocean? W) Temperature X) Sunlight Y) Salinity Z) Nutrients
W: W) Temperature
X: X) Sunlight
Y: Y) Salinity
Z: Z) Nutrients
Answer: Z) Z) Nutrients
A hula hoop with a radius of 20 inches is cut into 5 congruent pieces. What is the length of each piece? W) 4π X) 5π Y) 8π Z) 10π
W: W) 4π
X: X) 5π
Y: Y) 8π
Z: Z) 10π
Answer: Y) Y) 8π
Two dice are tossed. What is the probability that both results are five or higher?
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What scientist first proposed that energy is quantized in order to explain the emission spectrum of a black body?
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Which of the following can be said about a single, unchanging mass M that is moving at a constant speed? W) The object's kinetic energy is a constant X) No outside forces act on the object Y) The object's potential energy is a constant Z) No internal forces act on the object
W: W) The object's kinetic energy is a constant
X: X) No outside forces act on the object
Y: Y) The object's potential energy is a constant
Z: Z) No internal forces act on the object
Answer: W) W) The object's kinetic energy is a constant
What country is the world’s largest producer of natural gas? W) Austria X) United States Y) Russia Z) Kazakhstan
W: W) Austria
X: X) United States
Y: Y) Russia
Z: Z) Kazakhstan
Answer: X) X) United States
In 2014, the United States and China agreed to reduce their greenhouse gas emissions. The US agreed to reduce emissions from the 2005 level by 2025 by what percentage range? W) 12–14 X) 19–21 Y) 26–28 Z) 33–35
W: W) 12–14
X: X) 19–21
Y: Y) 26–28
Z: Z) 33–35
Answer: Y) Y) 26–28
In what geologic era did dinosaurs live? W) Jurassic X) Paleozoic Y) Mesozoic Z) Cenozoic
W: W) Jurassic
X: X) Paleozoic
Y: Y) Mesozoic
Z: Z) Cenozoic
Answer: Y) Y) Mesozoic
From the following four measurements made on a collection of stars, identify the two that can be plotted against each other to create an H-R diagram: 1) Absolute magnitude; 2) Age; 3) Temperature; 4) Mass.
Choices:
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What is the term for the minimum amount of energy required to remove an electron from an atom in the gaseous phase?
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Which of the following is a rare earth metal? W) Lutetium X) Gallium Y) Bismuth Z) Osmium
W: W) Lutetium
X: X) Gallium
Y: Y) Bismuth
Z: Z) Osmium
Answer: W) W) Lutetium
What type of symbiosis benefits both organisms involved?
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Monocytes develop into what phagocytic cells?
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Which of the following elements is commonly used to control the chain reaction inside the reactor vessel of a nuclear power plant? W) Boron X) Nitrogen Y) Hydrogen Z) Carbon
W: W) Boron
X: X) Nitrogen
Y: Y) Hydrogen
Z: Z) Carbon
Answer: W) W) Boron
Which of the following types of coal has the highest carbon content? W) Anthracite X) Lignite Y) Sub-bituminous Z) Bituminous
W: W) Anthracite
X: X) Lignite
Y: Y) Sub-bituminous
Z: Z) Bituminous
Answer: W) W) Anthracite
What is the multiplicative inverse of $$-\frac{1}{5}$$?
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You are going to meet a friend at a skate park that is 4 miles from your house. You will ride your bike at a constant rate of 10 miles per hour. Your friend lives 1.5 miles from the skate park and will walk at a constant rate of 3 miles per hour. If each of you starts from your respective houses, how many minutes before you leave should your friend leave, so that you meet at the skate park at the same time?
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Which of the following is true about your area if a weather watch is issued? W) A weather hazard may develop X) There is a weather hazard forming Y) There is an active weather hazard with potential for significant damage Z) A weather hazard has caused significant damage
W: W) A weather hazard may develop
X: X) There is a weather hazard forming
Y: Y) There is an active weather hazard with potential for significant damage
Z: Z) A weather hazard has caused significant damage
Answer: W) W) A weather hazard may develop
A biology teacher is working with bacterial cultures in class and does not properly seal the inoculated samples. This poses the highest health risk for which of the following groups of students? W) Students who have not been immunized X) Students with autoimmune disorders Y) The youngest students Z) All of the students equally
W: W) Students who have not been immunized
X: X) Students with autoimmune disorders
Y: Y) The youngest students
Z: Z) All of the students equally
Answer: X) X) Students with autoimmune disorders
What is the leading coefficient of the polynomial $$x^4 - 2x^2 - 2x + 4$$?
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How many positive integers less than 300 are divisible by 3 but not by 21?
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What idealized object absorbs all radiation directed at it and emits all of its energy in the form of electromagnetic radiation?
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Which of the following is an extensive property of a material? W) Temperature X) Volume Y) Electrical conductivity Z) Density
W: W) Temperature
X: X) Volume
Y: Y) Electrical conductivity
Z: Z) Density
Answer: X) X) Volume
What is the equivalent of the Aurora Borealis in the Southern hemisphere?
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Which of the following is closest to the number of major and minor tectonic plates into which Earth's lithosphere is divided? W) 5 X) 15 Y) 25 Z) 35
W: W) 5
X: X) 15
Y: Y) 25
Z: Z) 35
Answer: X) X) 15
Rickets is caused by a deficiency of what vitamin?
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A small population of native red-backed salamanders is migrating downhill towards a vernal pool. Along the way, half of the population is lost while crossing a road. This would possibly lead to which of the following outcomes? W) Genetic drift X) More competition among members of the population Y) Increased body size Z) Stationary individuals that do not migrate to vernal pools
W: W) Genetic drift
X: X) More competition among members of the population
Y: Y) Increased body size
Z: Z) Stationary individuals that do not migrate to vernal pools
Answer: W) W) Genetic drift
In which quadrant does the point $$(3, -4)$$ lie?
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If a $15^\circ$ sector of a circle has area $$20\pi$$, then, to the nearest whole number, what is the radius of the circle?
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