HS Sample Set 4, Round 7 from NSB
What is the purpose of cones in gymnosperms?
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Name the plant type that has one seed leaf when it germinates, leaf veins that are parallel to each other, and includes plants such as corn, wheat, lilies, daffodils, and palms.
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The lengths of two sides of a triangle are 4 and 9. If the triangle is isosceles, what is the length of the third side?
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Rebekah wants to fill a spherical piñata with candy. If the radius of her piñata is 6 inches, what is the volume in cubic inches of her piñata in terms of π?
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What ice sheet on Earth contains the largest volume of ice?
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The West Antarctic Ice Sheet and the East Antarctic Ice Sheet are separated by what mountain range? W) Transantarctic Mountains X) Admiralty Mountains Y) Shackleton Range Z) East Antarctic Ranges
W: W) Transantarctic Mountains
X: X) Admiralty Mountains
Y: Y) Shackleton Range
Z: Z) East Antarctic Ranges
Answer: W) W) Transantarctic Mountains
If the volume of a cube is 64 cubic centimeters, then what is the surface area of the cube in square centimeters?
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Which of the following categories of statistical plots displays the first, second, and third quartiles for the data that it represents? W) Box plot X) Scatter plot Y) Histogram Z) Pie chart
W: W) Box plot
X: X) Scatter plot
Y: Y) Histogram
Z: Z) Pie chart
Answer: W) W) Box plot
What are the products for the complete combustion of methane? W) Carbon and hydrogen X) Carbon dioxide and hydrogen Y) Carbon monoxide and water Z) Carbon dioxide and water
W: W) Carbon and hydrogen
X: X) Carbon dioxide and hydrogen
Y: Y) Carbon monoxide and water
Z: Z) Carbon dioxide and water
Answer: Z) Z) Carbon dioxide and water
For the complete combustion of butane, butane plus oxygen produces carbon dioxide and water vapor. What is the balanced equation for the combustion of butane?
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The mass of a raindrop is 4 milligrams. Which of the following represents the correct mass in grams of the raindrop? W) 4 × 10^-3 X) 4 × 10^-1 Y) 4 × 10^3 Z) 4 × 10^6
W: W) 4 × 10^-3
X: X) 4 × 10^-1
Y: Y) 4 × 10^3
Z: Z) 4 × 10^6
Answer: W) W) 4 × 10^-3
A freely falling object has a constant acceleration of 9.8 meters per second squared. Which of the following is correct? W) The object’s displacement changes by 9.8 meters every second squared X) The object’s acceleration increases by 9.8 meters per second squared each second Y) The object travels 9.8 meters each second Z) The object’s speed increases by 9.8 meters per second each second
W: W) The object’s displacement changes by 9.8 meters every second squared
X: X) The object’s acceleration increases by 9.8 meters per second squared each second
Y: Y) The object travels 9.8 meters each second
Z: Z) The object’s speed increases by 9.8 meters per second each second
Answer: Z) Z) The object’s speed increases by 9.8 meters per second each second
In which sphere is the “bad” ozone, a volatile compound that contributes to smog, located? W) Stratosphere X) Biosphere Y) Troposphere Z) Lithosphere
W: W) Stratosphere
X: X) Biosphere
Y: Y) Troposphere
Z: Z) Lithosphere
Answer: Y) Y) Troposphere
In which sphere is the “good” ozone that absorbs harmful ultraviolet rays located?
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Ducklings learn to recognize and follow the first moving object that they see, usually their mother. What is this behavior called? W) Instinct X) Imprinting Y) Remote sensing Z) Classical conditioning
W: W) Instinct
X: X) Imprinting
Y: Y) Remote sensing
Z: Z) Classical conditioning
Answer: X) X) Imprinting
A pigeon is placed in a box. Sooner or later, the pigeon accidentally presses a button or lever that releases food. Eventually, the pigeon learns how to press the button whenever it wants food. This kind of learning is called: W) Habituation X) Classical conditioning Y) Insight learning Z) Operant conditioning
W: W) Habituation
X: X) Classical conditioning
Y: Y) Insight learning
Z: Z) Operant conditioning
Answer: Z) Z) Operant conditioning
Determine the solubility product constant (or Ksp) of silver bromide, given that its molar solubility is 5.71 × 10^-7 moles per liter. W) 3.26 × 10^-13 X) 5.71 × 10^-7 Y) 1.14 × 10^-6 Z) 2.14 × 10^-4
W: W) 3.26 × 10^-13
X: X) 5.71 × 10^-7
Y: Y) 1.14 × 10^-6
Z: Z) 2.14 × 10^-4
Answer: W) W) 3.26 × 10^-13
Which of the following are strong bases in aqueous solution: 1) potassium hydroxide; 2) ammonia; 3) sodium chloride; 4) calcium hydroxide; 5) beryllium hydroxide?
Choices:
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Which of the following is most likely a descendent of dinosaurs? W) Frog X) Cockroach Y) Turtle Z) Robin
W: W) Frog
X: X) Cockroach
Y: Y) Turtle
Z: Z) Robin
Answer: Z) Z) Robin
Oxygen-rich blood leaves the left ventricle to enter the largest blood vessel in the body. What is this blood vessel called?
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A poorly designed fishing bob does not float in a sucrose solution. Which of the following actions could be taken so the fishing bob would float? W) Increase the volume of the solution X) Decrease the volume of the solution Y) Increase the concentration of the solution Z) Decrease the concentration of the solution
W: W) Increase the volume of the solution
X: X) Decrease the volume of the solution
Y: Y) Increase the concentration of the solution
Z: Z) Decrease the concentration of the solution
Answer: Y) Y) Increase the concentration of the solution
Water tank A has width W₁ and tank B has width W₂, where W₁ > W₂. The two water tanks are the same height, H. If both tanks are completely filled with water, which of the following is true about the water pressure at the bottom of the tank? W) Pressure cannot be determined X) The pressure is greater in tank A Y) The pressure is greater in tank B Z) Both tanks have the same pressure
W: W) Pressure cannot be determined
X: X) The pressure is greater in tank A
Y: Y) The pressure is greater in tank B
Z: Z) Both tanks have the same pressure
Answer: Z) Z) Both tanks have the same pressure
What is the most abundant element in the universe?
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Our solar system formed approximately how many billion years ago? W) 2 X) 3 Y) 5 Z) 7
W: W) 2
X: X) 3
Y: Y) 5
Z: Z) 7
Answer: Y) Y) 5
Given the function $$y = 4x - x^2$$, what is the largest possible value for y?
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Express the following in standard polynomial form: the quantity $$(3x + 2)^3$$.
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In the 1980s, Europeans began to be diagnosed with mad cow disease, a disease which affects the brain. What is the type of infectious agent that causes this disease? W) Virus X) Bacteria Y) Fungi Z) Prion
W: W) Virus
X: X) Bacteria
Y: Y) Fungi
Z: Z) Prion
Answer: Z) Z) Prion
The prions that cause mad cow disease lack DNA. What does current research suggest that prions are?
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What is the mass of an electron relative to a proton? W) 9.1 x 10^-31 X) 8.2 x 10^-14 Y) 1/1836 Z) 0.51
W: W) 9.1 x 10^-31
X: X) 8.2 x 10^-14
Y: Y) 1/1836
Z: Z) 0.51
Answer: Y) Y) 1/1836
Sulfuric acid is used to neutralize a solution of sodium hydroxide. Calculate the number of moles of sodium hydroxide required to completely neutralize two moles of sulfuric acid.
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Which of the following describes an electromagnet? W) Straight wire carrying a current X) Current-carrying wire wrapped around a core Y) Permanent bar magnet Z) Rock that is iron attracting
W: W) Straight wire carrying a current
X: X) Current-carrying wire wrapped around a core
Y: Y) Permanent bar magnet
Z: Z) Rock that is iron attracting
Answer: X) X) Current-carrying wire wrapped around a core
A voltage difference of 10 volts delivers how much power, in watts, to a 1-ohm resistor?
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Which of the following is NOT a strong acid? W) Hydrofluoric acid X) Hydrochloric acid Y) Hydrobromic acid Z) Hydroiodic acid
W: W) Hydrofluoric acid
X: X) Hydrochloric acid
Y: Y) Hydrobromic acid
Z: Z) Hydroiodic acid
Answer: W) W) Hydrofluoric acid
Which of the following would be the resulting pH from the reaction of equal amounts of a strong acid with a strong base? W) Less than 7 X) Equal to 7 Y) More than 7 Z) The reaction is independent of the pH
W: W) Less than 7
X: X) Equal to 7
Y: Y) More than 7
Z: Z) The reaction is independent of the pH
Answer: X) X) Equal to 7
Where do the lines $$y = \frac{2x}{3} + 5$$ and $$3y = 2x - 21$$ intersect?
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Where do the lines $$3x - 4y = 12$$ and $$5x + 4y = 20$$ intersect?
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The largest reserve of energy in the United States is in which of the following? W) Natural gas X) Coal Y) Nuclear Z) Offshore oil
W: W) Natural gas
X: X) Coal
Y: Y) Nuclear
Z: Z) Offshore oil
Answer: X) X) Coal
The Organization of the Petroleum Exporting Countries (OPEC) produces about what percentage of the world’s crude oil? W) 20% X) 40% Y) 60% Z) 80%
W: W) 20%
X: X) 40%
Y: Y) 60%
Z: Z) 80%
Answer: X) X) 40%
The world’s largest desert is on which continent?
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What property of many meteors makes Antarctica a good place to go meteor hunting?
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What type of collision occurs when two objects collide and stick together? W) Partially elastic X) Perfectly elastic Y) Partially inelastic Z) Perfectly inelastic
W: W) Partially elastic
X: X) Perfectly elastic
Y: Y) Partially inelastic
Z: Z) Perfectly inelastic
Answer: Z) Z) Perfectly inelastic
For all collisions, all of the following properties are conserved except: W) Total mass X) Center of mass Y) Kinetic energy Z) Momentum
W: W) Total mass
X: X) Center of mass
Y: Y) Kinetic energy
Z: Z) Momentum
Answer: Y) Y) Kinetic energy
What is the final three-carbon product of glycolysis?
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Which acidic compound is the major product of fermentation in skeletal muscle?
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Two triangles are similar. If the smaller one has a perimeter of 18 and the ratio between them is 5:3, what is the perimeter of the larger triangle?
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If all of the interior angles of a polygon sum to 3060 degrees, how many sides does the polygon have?
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Ocean thermal energy conversion systems convert solar radiation to electric power. Which of the following describes the source of energy in ocean thermal energy conversion systems? W) Magma below the ocean floor X) Oceanic thermal vents Y) Wave motion Z) The difference in temperatures between surface and deep waters
W: W) Magma below the ocean floor
X: X) Oceanic thermal vents
Y: Y) Wave motion
Z: Z) The difference in temperatures between surface and deep waters
Answer: Z) Z) The difference in temperatures between surface and deep waters
What is the minimum temperature difference, in degrees Celsius, needed to develop an ocean thermal energy conversion system? W) 10˚ X) 15˚ Y) 20˚ Z) 25˚
W: W) 10˚
X: X) 15˚
Y: Y) 20˚
Z: Z) 25˚
Answer: Y) Y) 20˚
Which of the following describes Jupiter's great red spot? W) A storm X) An aurora Y) A magnetotail Z) A volcano
W: W) A storm
X: X) An aurora
Y: Y) A magnetotail
Z: Z) A volcano
Answer: W) W) A storm
Saturn’s rings are made mostly of:
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