HS Sample Set 5, Round 4 from NSB
Which of the following conditions is necessary and sufficient for an object in equilibrium? W) It is at rest X) It is moving with constant velocity Y) It is either moving with constant velocity or with constant acceleration Z) It is moving with constant acceleration
W: W) It is at rest
X: X) It is moving with constant velocity
Y: Y) It is either moving with constant velocity or with constant acceleration
Z: Z) It is moving with constant acceleration
Answer: X) X) It is moving with constant velocity
An object with a mass of 1 gram is whirled in a horizontal circle with a radius of 0.5 meters at a constant speed of 2 meters per second. What is the work done on the object, in joules, during one revolution?
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What theory states that our solar system formed from the compression of a giant, swirling cloud of gas and dust?
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By name or number, order the following three events from earliest to latest as two air masses of different densities develop into a mid-latitude cyclone: 1) Cyclonic circulation; 2) Wave development; 3) Front development.
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Which of the following will INCREASE the current from a solar panel? W) Using a lead acid cell in series with the solar cells X) Using a wet cell in series with the solar cells Y) Connecting the solar cells in series Z) Connecting the solar cells in parallel
W: W) Using a lead acid cell in series with the solar cells
X: X) Using a wet cell in series with the solar cells
Y: Y) Connecting the solar cells in series
Z: Z) Connecting the solar cells in parallel
Answer: Z) Z) Connecting the solar cells in parallel
Given a DC circuit with a voltage source delivering 20 volts and a circuit resistance of 5 kiloohms, what is the value of the current in amperes?
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An RLC circuit must contain all of the following, EXCEPT: W) A capacitor X) An inductor Y) A diode Z) A resistor
W: W) A capacitor
X: X) An inductor
Y: Y) A diode
Z: Z) A resistor
Answer: Y) Y) A diode
By name or number, identify all of the following four factors that directly affect the amount of electricity generated from hydroelectric dams: 1) Water temperature; 2) Flow; 3) Head; 4) Time of day.
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A line with the equation y = cx + c, where c is a non-zero real number, must intersect which of the following? W) Positive x-axis X) Positive y-axis Y) Negative x-axis Z) Negative y-axis
W: W) Positive x-axis
X: X) Positive y-axis
Y: Y) Negative x-axis
Z: Z) Negative y-axis
Answer: Y) Y) Negative x-axis
Find the slope of the line tangent to the parametric curve at the given point: x = e^t, y = ln t at t = 1.
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Name the three layers of the Sun’s atmosphere.
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The region around Sweden has undergone elastic strain due to pressure from ancient ice cover. What will happen to the elevation of this region over the next 10,000 years?
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Neglecting the effect of air resistance, a stone dropped off of a 197-meter high building lands on the ground at which of the following approximate times in seconds? W) 3 X) 4 Y) 6 Z) 18
W: W) 3
X: X) 4
Y: Y) 6
Z: Z) 18
Answer: Y) Y) 6
A capacitor has a very large capacitance of 10 farads and is charged by placing a potential difference of 2 volts between its plates. How much energy in joules is stored in the capacitor?
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Which of the following BEST describes how planets are distinguishable from stars in the night sky? W) Planets appear brighter than stars X) Planets appear redder than stars Y) Planets appear bigger than stars Z) Planets have periods of retrograde motion while stars do not
W: W) Planets appear brighter than stars
X: X) Planets appear redder than stars
Y: Y) Planets appear bigger than stars
Z: Z) Planets have periods of retrograde motion while stars do not
Answer: Z) Z) Planets have periods of retrograde motion while stars do not
What unit equal to 0.01 millimeters thickness at STP is used to measure Earth’s atmospheric ozone layer?
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Which of the following statements is NOT true about the current electricity system in the United States? W) It is 99.7% reliable X) It consists of more than 9,000 electric generating units Y) It has more than 1,000,000 megawatts of generating capacity Z) It is largely decentralized
W: W) It is 99.7% reliable
X: X) It consists of more than 9,000 electric generating units
Y: Y) It has more than 1,000,000 megawatts of generating capacity
Z: Z) It is largely decentralized
Answer: Z) Z) It is largely decentralized
Taking the latent heat of fusion to be 80 calories per gram, how much energy, in kilocalories, does it take to bring 10 grams of ice at 0° Celsius to liquid water at 20° Celsius?
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Insect symbionts are represented in all EXCEPT which of the following three groups: 1) bacteria; 2) fungi; 3) animals?
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By name or number, list all of the following four pollinators that are members of the order Hymenoptera: 1) Ruby-throated hummingbird; 2) Monarch butterfly; 3) Green bottle fly; 4) Honey bee.
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What is the numerical value of 1152?
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What is the coefficient corresponding to x³ in the binomial expansion of (x + 2)⁵?
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Which of the following is NOT synthesized by the human liver? W) Hemoglobin X) Fibrinogen Y) Albumin Z) Lipoprotein
W: W) Hemoglobin
X: X) Fibrinogen
Y: Y) Albumin
Z: Z) Lipoprotein
Answer: W) W) Hemoglobin
By name or number, give all of the following five choices that are components of bile in vertebrates: 1) Water; 2) Cholesterol; 3) Lymph; 4) Bilirubin; 5) Amylase.
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As the grade of coal increases, how do the concentrations of carbon and sulfur change, respectively?
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If burned over the course of a minute, providing your answer to the nearest ten, about how many kilowatts of power would a pound of human fat release?
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What is the phrase that refers to the energy required by an incident photon to cause the photoelectric effect?
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By name or number, identify all of the following four household items that make use of the Bernoulli principle: 1) Refrigerator; 2) Can opener; 3) Washing machine; 4) Vacuum cleaner.
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Name the plant tissue beneath the epidermis that makes up the cells that surround a stoma.
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Mineral salts participate in enzymatic activity as which of the following? W) Co‐factors X) Activators Y) Stabilizers Z) Catalysts
W: W) Co‐factors
X: X) Activators
Y: Y) Stabilizers
Z: Z) Catalysts
Answer: W) W) Co‐factors
Which of the following statements is NOT true about Taylor series? W) Taylor series are defined for infinitely differentiable functions X) All Taylor series are power series Y) All Taylor series are convergent Z) The first n terms of a Taylor series approximate a function with a polynomial
W: W) Taylor series are defined for infinitely differentiable functions
X: X) All Taylor series are power series
Y: Y) All Taylor series are convergent
Z: Z) The first n terms of a Taylor series approximate a function with a polynomial
Answer: Y) Y) All Taylor series are convergent
Considering the function f(x) = 3x² – 4x + 1, what is the average rate of change from x = 2 to x = 5?
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Which of the following statements is TRUE of ceramics? W) They are homogeneous X) They are heterogeneous Y) They are chelates Z) They are a form of glass
W: W) They are homogeneous
X: X) They are heterogeneous
Y: Y) They are chelates
Z: Z) They are a form of glass
Answer: X) X) They are heterogeneous
Which of the following elements has the valence electron configuration of 3s²3p³? W) Phosphorus X) Oxygen Y) Bromine Z) Nitrogen
W: W) Phosphorus
X: X) Oxygen
Y: Y) Bromine
Z: Z) Nitrogen
Answer: W) W) Phosphorus
What term is often used to describe a winter storm that strikes the East Coast of the United States, involving a low pressure system that picks up moisture from the ocean and often dumps snow on land?
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What optical device completely eliminates chromatic aberration in telescopes?
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Which of the following represents the electron-pair geometry of the central oxygen atom of ozone? W) Linear X) Trigonal planar Y) Tetrahedral Z) Trigonal bipyramidal
W: W) Linear
X: X) Trigonal planar
Y: Y) Tetrahedral
Z: Z) Trigonal bipyramidal
Answer: X) X) Trigonal planar
Within a single atom, what is the maximum number of electrons that can fit in an atomic shell defined by the quantum numbers n = 3 and l = 2?
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One group of carbohydrates is known as polyhydroxylated aldehydes. By what other term is this group described?
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Bacteria depend on cell membrane lipids to provide structure and stability. What physical environmental factor is most likely to cause these membranes to lose stability?
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What is the IUPAC name for SnCl₂ · 6H₂O?
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By name or number, list all of the following five substances that are NOT Newtonian fluids: 1) Gasoline; 2) Yogurt; 3) Water; 4) Blood; 5) Ketchup.
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Which of the following statements is NOT an advantage of a repeated-measures design compared to an independent-measures design to compare two treatment conditions? W) It requires fewer subjects X) It is better suited to study development that takes place over time Y) It reduces problems caused by individual differences Z) It reduces the confounding effects of other factors
W: W) It requires fewer subjects
X: X) It is better suited to study development that takes place over time
Y: Y) It reduces problems caused by individual differences
Z: Z) It reduces the confounding effects of other factors
Answer: Z) Z) It reduces the confounding effects of other factors
The linear function y = f(x) contains the two points (2, 1) and (5, 8). In simplest form, what is f(13)?
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A population has a mean of 73 and a standard deviation of 8. If the distribution is standardized to create a new distribution with a mean of 100 and a standard deviation of 20, what is the new value of a score of 65 from the original distribution?
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What are, respectively, the amplitude, period, horizontal shift, and vertical shift of $$y = -5 + 7\cos\!\bigl(\tfrac{\pi}{6}(x + \tfrac{\pi}{12})\bigr)\;?$$
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If a person suffers an injury and is no longer able to walk but the heart was not affected, which peripheral nervous system component is most likely to have been damaged?
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What is the technical name of the process, usually occurring in the fall, through which deciduous plants systematically shed their leaves?
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Which of the following can bond to a metal ion? W) Ligand X) Lewis acid Y) Brønsted–Lowry acid Z) Enantiomer
W: W) Ligand
X: X) Lewis acid
Y: Y) Brønsted–Lowry acid
Z: Z) Enantiomer
Answer: W) W) Ligand
How many milliliters of 0.75 M HCl are required to completely neutralize 25.0 mL of 0.15 M Ba(OH)₂?
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