MS Sample Set 8, Round 15 from NSB
Which of the following figures can result when a plane intersects a cube? W) Circle X) Octagon Y) Line Z) Pentagon
W: W) Circle
X: X) Octagon
Y: Y) Line
Z: Z) Pentagon
Answer: Z) Z) Pentagon
If dog food can be purchased in packages of either 3 pounds or 5 pounds, in how many different ways can exactly 150 pounds be purchased?
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In the Kingdom Animalia, what is the only phylum that lacks true tissues?
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Which of the following processes is directly related to coral bleaching? W) Loss of the zooxanthellae X) Air pollution Y) Red tides Z) Climate change
W: W) Loss of the zooxanthellae
X: X) Air pollution
Y: Y) Red tides
Z: Z) Climate change
Answer: W) W) Loss of the zooxanthellae
Which of the following is a good way to prevent erosion? W) Moldboard plowing X) Growing crops in terraces Y) Disc plowing Z) River channelization
W: W) Moldboard plowing
X: X) Growing crops in terraces
Y: Y) Disc plowing
Z: Z) River channelization
Answer: X) X) Growing crops in terraces
Tornado alley is a region in the Midwest including parts of Texas, Oklahoma, Kansas and Nebraska. Tornadoes are common here because of the confluence of cold dry air from the northwest and what from the Gulf of Mexico?
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What is the name for the in vitro technique that rapidly generates large amounts of DNA from a small amount of template DNA?
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Which of the following was NOT a component of the Earth’s early atmosphere? W) Oxygen X) Hydrogen gas Y) Methane Z) Ammonia
W: W) Oxygen
X: X) Hydrogen gas
Y: Y) Methane
Z: Z) Ammonia
Answer: W) W) Oxygen
How is the speed of a wave affected when the amplitude increases?
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Which of the following are NOT emitted by radioactive materials? W) Gamma rays X) Phonons Y) Alpha particles Z) Electrons
W: W) Gamma rays
X: X) Phonons
Y: Y) Alpha particles
Z: Z) Electrons
Answer: X) X) Phonons
The volume of a cube with an edge that is an integer is represented by the value $$72n$$, where $$n$$ is an integer. What is the smallest possible value for $$n$$?
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Suppose a two digit number is added to the number formed by interchanging its digits. The result is how many times the sum of the original digits?
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Particle Man is attacking a video game hero with gamma rays. A shield made from which of the following would be most effective in protecting our hero? W) Paper X) A leaf Y) Aluminum Z) Lead
W: W) Paper
X: X) A leaf
Y: Y) Aluminum
Z: Z) Lead
Answer: Z) Z) Lead
What is the difference in kinetic energy of a 10 pound object moving at 10 feet per second on Earth vs. the same object moving at 10 feet per second on the Moon?
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What age-related process in plants is characterized by fruits, flowers, and leaves falling from trees after they have completed development?
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If a flower is said to be incomplete and perfect, which of the following would apply? W) The flower is missing petals X) The flower is missing carpels Y) The flower has extra sepals Z) The flower is missing stamens
W: W) The flower is missing petals
X: X) The flower is missing carpels
Y: Y) The flower has extra sepals
Z: Z) The flower is missing stamens
Answer: W) W) The flower is missing petals
Which of the following is NOT true of a lahar? W) It can be very destructive X) It can occur long after the eruption that caused it Y) It must involve material at high temperatures Z) It contains more water than a pyroclastic flow
W: W) It can be very destructive
X: X) It can occur long after the eruption that caused it
Y: Y) It must involve material at high temperatures
Z: Z) It contains more water than a pyroclastic flow
Answer: Y) Y) It must involve material at high temperatures
Compressive forces dominate which of the following tectonic plate boundaries? W) North American and Eurasian X) Arabian and Eurasian Y) Nazca and Antarctic Z) Indo-Australian and Antarctic
W: W) North American and Eurasian
X: X) Arabian and Eurasian
Y: Y) Nazca and Antarctic
Z: Z) Indo-Australian and Antarctic
Answer: X) X) Arabian and Eurasian
Which of the following is the oldest mountain chain, geologically? W) Himalayas X) Rockies Y) Appalachians Z) Alps
W: W) Himalayas
X: X) Rockies
Y: Y) Appalachians
Z: Z) Alps
Answer: Y) Y) Appalachians
List the four lobes of the cerebral cortex.
Choices:
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The production of water from barium hydroxide and ammonium chloride is an example of what type of reaction? W) Endothermic X) Isothermic Y) Exothermic Z) Xerothermic
W: W) Endothermic
X: X) Isothermic
Y: Y) Exothermic
Z: Z) Xerothermic
Answer: W) W) Endothermic
Assume the acceleration due to gravity is 10 meters per second squared, and you are holding a 5 newton weight hanging from a relatively weightless string. You pull up on the string, causing both the string and mass to accelerate upwards at a rate of 4 meters per second squared. How many newtons of tension exist in the string during this motion? W) 3 X) 5 Y) 7 Z) 9
W: W) 3
X: X) 5
Y: Y) 7
Z: Z) 9
Answer: Y) Y) 7
If \(\sqrt{x} = \sqrt{a} + \sqrt{b}\), then which of the following is equivalent to \(x\)? W) \(a + b + 2\sqrt{ab}\) X) \(a + b + 2ab\) Y) \(a + b + ab\) Z) \(a + b\)
W: W) \(a + b + 2\sqrt{ab}\)
X: X) \(a + b + 2ab\)
Y: Y) \(a + b + ab\)
Z: Z) \(a + b\)
Answer: W) W) \(a + b + 2\sqrt{ab}\)
Arrange the following four in historical order, earliest to most recent: 1) Newton’s calculus; 2) Euclidean geometry; 3) Pythagorean theorem; 4) Boolean algebra.
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Correct Order:
Photosynthesis has both light and dark reactions. Which of the following occurs WITHOUT the presence of light? W) Water is split to produce oxygen X) Carbon dioxide is transformed to sugar Y) NADP+ is converted to NADPH Z) ADP is converted to ATP
W: W) Water is split to produce oxygen
X: X) Carbon dioxide is transformed to sugar
Y: Y) NADP+ is converted to NADPH
Z: Z) ADP is converted to ATP
Answer: X) X) Carbon dioxide is transformed to sugar
You come home from school to discover your grandmother making fresh bread from scratch. You tell her that you don’t want to eat it because it contains a fungus. To what specific ingredient do you object?
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Which of the following is NOT a mechanism of erosion? W) Flowing water X) Freeze thaw cycles Y) Photolytic breakdown Z) Movement of dust by wind
W: W) Flowing water
X: X) Freeze thaw cycles
Y: Y) Photolytic breakdown
Z: Z) Movement of dust by wind
Answer: Y) Y) Photolytic breakdown
A space plasma is a combination of what two things?
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What term is used to refer to all of a person’s genetic information, including the DNA in chromosomes and the mitochondria?
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Which of the following diseases is NOT caused by a microbial infection? W) Trypanosomiasis X) Lyme disease Y) Cystic fibrosis Z) Coccidiomycosis
W: W) Trypanosomiasis
X: X) Lyme disease
Y: Y) Cystic fibrosis
Z: Z) Coccidiomycosis
Answer: Y) Y) Cystic fibrosis
What is the major source of energy for protostars? W) Gravitational potential energy X) Fusion Y) Fission Z) Thermal energy
W: W) Gravitational potential energy
X: X) Fusion
Y: Y) Fission
Z: Z) Thermal energy
Answer: W) W) Gravitational potential energy
What is the temperature, in degrees Fahrenheit, of 15 pounds of water at atmospheric pressure after 40 minutes, if the initial temperature of the water was 192°F and 15 BTU per minute is added?
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Copper is known for many properties, two of which in particular make it excellent for power lines. One of them is that it has a rather high electrical conductivity. The other property is that it is relatively easy to stretch it into great lengths of wire without breaking. What is the scientific name of the latter property? W) Masonoriety X) Malleability Y) Ductility Z) Softness
W: W) Masonoriety
X: X) Malleability
Y: Y) Ductility
Z: Z) Softness
Answer: Y) Y) Ductility
In a sample of a radioactive element, 75% of the nuclei have undergone radioactive decay after 10 years. What is the half-life of this element?
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Mrs. Brooks gave Devon and Coco each a red rod and a blue rod. Each red rod was equal in measure, and the blue rods were equal in measure. She told them to create a triangle using these side lengths. The third side could be any length they wanted. She also told them one angle of their triangle must measure 50 degrees. Which of the following statements best describes their triangles? W) Possibly but not necessarily congruent X) Definitely similar but not necessarily congruent Y) Definitely congruent but not necessarily similar Z) Definitely both congruent and similar
W: W) Possibly but not necessarily congruent
X: X) Definitely similar but not necessarily congruent
Y: Y) Definitely congruent but not necessarily similar
Z: Z) Definitely both congruent and similar
Answer: W) W) Possibly but not necessarily congruent
Solve the following inequality for \(d\): \(\lvert 7 + 8d\rvert < 14\).
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What small, regularly-shaped cell fragments circulate in the blood of mammals and lead to the formation of blood clots?
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What do mad-cow disease, hantavirus, and malaria all have in common? W) They all affect the nervous system X) They all have mortality rates of 100% Y) They are diseases that primarily affect people living in tropical environments Z) They are all passed from animals to humans
W: W) They all affect the nervous system
X: X) They all have mortality rates of 100%
Y: Y) They are diseases that primarily affect people living in tropical environments
Z: Z) They are all passed from animals to humans
Answer: Z) Z) They are all passed from animals to humans
What is the primary reason for irradiating food? W) To make the food taste better X) To increase the shelf life of food Y) To kill pathogens in the food Z) To make the food more interesting visually
W: W) To make the food taste better
X: X) To increase the shelf life of food
Y: Y) To kill pathogens in the food
Z: Z) To make the food more interesting visually
Answer: Y) Y) To kill pathogens in the food
What is a tremendous source of natural gas in the U.S. that is responsible for the current low prices of natural gas?
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Saturn’s moon, Enceladus, has a surface reflectivity of about 100% and an average surface temperature of 75 Kelvin. What does this indicate about the chemical surface composition?
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Which of the following is NOT true about terrigenous ocean sediments? W) They are formed through chemical and physical weathering processes on land X) They are transported by surface water, often rivers, to the ocean Y) Bed load tends to settle out and be deposited along river beds before rivers meet the ocean Z) Fine clay particles from rivers can remain in suspension for years in the ocean
W: W) They are formed through chemical and physical weathering processes on land
X: X) They are transported by surface water, often rivers, to the ocean
Y: Y) Bed load tends to settle out and be deposited along river beds before rivers meet the ocean
Z: Z) Fine clay particles from rivers can remain in suspension for years in the ocean
Answer: Y) Y) Bed load tends to settle out and be deposited along river beds before rivers meet the ocean
Mitosis is the process by which nuclei divide, creating two new nuclei, each with identical sets of DNA. Meiosis is the process that involves only which of the following types of cells? W) Skin cells X) Sex cells Y) Parenchyma cells Z) Bacteria
W: W) Skin cells
X: X) Sex cells
Y: Y) Parenchyma cells
Z: Z) Bacteria
Answer: X) X) Sex cells
Which of the following is NOT part of humans’ innate immune system? W) Skin X) Antibodies Y) Phagocytic cells Z) Mucous membranes
W: W) Skin
X: X) Antibodies
Y: Y) Phagocytic cells
Z: Z) Mucous membranes
Answer: X) X) Antibodies
Which of the following types of radiation has the greatest ability to penetrate matter? W) Gamma rays X) Beta particles Y) Alpha particles Z) Positrons
W: W) Gamma rays
X: X) Beta particles
Y: Y) Alpha particles
Z: Z) Positrons
Answer: W) W) Gamma rays
Which of the following statements best describes a vehicle traveling at 60 miles per hour on a uniform circular track, assuming the vehicle stays on the track? W) The vehicle experiences zero net acceleration, as it continually travels at a speed of 60 miles per hour X) The vehicle experiences zero net acceleration because the circular track does not move Y) The vehicle experiences a forward acceleration as it must speed up to continue moving in a circle Z) The vehicle experiences an acceleration toward the center of the circle
W: W) The vehicle experiences zero net acceleration, as it continually travels at a speed of 60 miles per hour
X: X) The vehicle experiences zero net acceleration because the circular track does not move
Y: Y) The vehicle experiences a forward acceleration as it must speed up to continue moving in a circle
Z: Z) The vehicle experiences an acceleration toward the center of the circle
Answer: Z) Z) The vehicle experiences an acceleration toward the center of the circle