Saturday, 25 July 2015

RC Set 4 - SOLUTION

91. (E). A falsifiable idea is "one that can be shown to be false." The statement no human being lives forever can
only be shown to be false if one observes a human being that lives forever. However, this would be impossible
(because of the word forever), and thus the idea is not falsifiable. In addition, answer choices (A) through (D) are
incorrect. The statement all birds are black is falsifiable by identifying a single bird that is not black. The statement
Earth is the only planet in the universe with intelligent life can be proven false by finding intelligent life on any
planet in the universe except Earth. The statement It rains on Mars everyday can be proven false by observing Mars
on a single non-rainy day. The statement The sun will explode in 100,000 years can be proven false by waiting more
than 100,000 years and verifying that the sun has not exploded. Note that choices (D) and (E) seem somewhat similar
— however impractical it is to wait 100,000 years to falsify something, there is still a big difference between
"100,000 years" and "forever."

92. (B). The author states in the last paragraph that a theory that is unable to be proven true is very unlikely to be
formed. Therefore, it appears that he/she believes that "confirmability" lacks a practical application. The author states,
it is understandable that Popper does not devote that much time to the criterion of 'confirmability,' inferring that
confirmability is less important that falsifiability, not more. You can eliminate (A). Regarding (C), the author states
that a theory that is unable to be proven true is unlikely to be formed, therefore it is unlikely he/she believes that
confirmability applies to a broad range of theories. As for (D), in the first sentence of the last paragraph, the author
states that confirmability follows the same logic as falsifiability ("By that logic,…") and thus it appears he/she
believes that comfirmability is reasonable. As for (E), the author states, it is understandable that Popper does not
devote that much time to the criterion of 'confirmability'. Thus, the author is unlikely to agree that Popper should
have developed the idea of confirmability

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93. (C). The second paragraph focuses on the significance of the two definitions of 'political', as (C) states. (A) is
incorrect because no alternative is offered in the second paragraph. (B) is incorrect because there is no "revision" —
this choice might describe the third paragraph. Similarly, in (D), there is no "exception." (E) is closer to the point of
the first paragraph.

94. (B). The author mentions the play as an example, or "illustration," of when speech is political, which is the aspect
discussed in that paragraph. (A) is incorrect, as it is used as an example, not counterpoint. (C) is wrong because the
passage does not advocate a position. (D) and (E) miss the point of the example, which is neither about universality
nor a fallacy.

95. (E). The passage states that the hegemonic model believed governments to operate exclusively through law and
the threat and enforcement of concrete punishment, such as imprisonment, monetary penalties, etc… which
legitimizes law and supports the exercise of power. (A), (B), and (C) all exemplify a using the rule of law to exact
concrete punishments. (D) does not demonstrate a clear punishment, but does represent a clear exercise of power (the
ability to censor an exhibit). Only (E) does not represent the use of law and punishment, as a coup would necessarily
not be legal.


96. (A). The answer to this type of question is always explicit in the passage. In the third paragraph, the passage cites
Hanna Pitkin: public-spirited conversation happens when citizens speak in terms of 'justice.' None of the other
choices is mentioned in this section of the passage.


97. Such a definition is not precisely wrong, but rather is outdated and falls short… (second sentence of first
paragraph). This is the only one of the four sentences in paragraphs 1 and 2 that includes an explicit criticism.


98. (B). The passage describes two different ideas, explanationism and predictionism, that have both been used to
verify or disprove different scientific theories. As for (A), the passage never states that either theory is superior to the
other. Although (C) is true, the passage only mentions the two models of the solar system as an example of the
workings of explanationism. Therefore, it cannot be the main idea of the passage. Regarding (D), the passage does not
describe what is required to posit a physical theory. As for (E), a predictionist and an explanationist will always
diverge on how to prove that a scientific theory is true, but they might still agree on whether or not the theory is
correct.

99. (E). Before citing the example of the Copernicus and Brahe models of the universe, the author states, it could be
the case that a theory predicts something and yet does not provide the best explanation of it. The author goes on
to use Copernicus and Brahe as an example, stating that both of their theories have predictive power, but obviously
Brahe's does not offer the best explanation for the workings of the solar system. As for (A), the author is actually
arguing the opposite: that predictive power alone is never enough to verify a theory. (B) does reveal that some
theories have more or less of an ad-hoc quality, but this is not the author's reason for citing this example. The main
reason must be related back to explanationism. As for (C), the example showed the opposite — both theories were
found to accurately predict future events, and thus they must have both made the same predictions for those future
events. Although it is true that the more complicated model failed (D), the author's intent was to show that an
incorrect model can still make correct predictions.



100. I and II only. The words for example at the beginning of the sentence containing the crowd analogy follow a
sentence about the Pauli exclusion principle. This principle says that fermions cannot inhabit the same fundamental
state. Electrons, which are fermions, are likened to members of a crowd in a stadium; the fact that electrons cannot
circle the nuclei of atoms in precisely the same orbits (just as crowd members cannot sit on top of one another) is a
"consequence" of the Pauli exclusion principle. Thus, the first statement is justified. These electrons must occupy
more and more distant locations; the crowd analogy certainly illustrates that behavior, so the second statement is
justified. As for the third, incorrect statement, while you do know that electrons cannot occupy the same orbits as one
another and must instead occupy more and more distant locations, you do not know that those orbits are "concentric"
or "evenly-spaced."


101. (B). The author begins by naming the two classes of subatomic particles, and then divides the remainder of the
passage into descriptions of each class and their relation to each other. Regarding (A) and (D), the author explains
both of these concepts within the passage, but it is subordinate to the main idea of describing the two types of
subatomic particles, and thus is not the primary purpose of the passage. As for (C) and (E), the author's primary
purpose in writing is not to provide examples or to argue.

102. (C). The author states that fermions, not bosons, are the constituents of ordinary matter. All other answers are
mentioned in the second paragraph of the passage.

103. (D). The passage states that Cooper pairs of electrons will flow in perfect harmony and with zero resistance
through the metal. As an example of the same phenomenon, you are told that a swirl in a cup of superfluid helium will
never dissipate. Therefore, it is correct to infer that a current through a superconducting wire will never dissipate. If
you were not certain that you could be sure of this, you can still eliminate the other choices through process of
elimination. As for (A), the passage states that an even number of fermions (which, according to the first paragraph,
include electrons, protons, and neutrons) constitute a boson, but not an odd number (1/2 integer times an odd will
not give an integer). The last paragraph states that scientists argue for the existence of skyrmions in a medium that
might permit them to be formed, implying that they have not yet been discovered, so eliminate (B). In (C), the author
states that two electrons cannot circle a nucleus in the same orbit, but they could spin in different orbits that are the
same distance from the nucleus. Finally, in (E), the author gives two examples of fermions becoming bosons at cooled
temperatures, but does not say this is the only situation in which this can occur.

104. (A). The first paragraph states that fermions obey the Pauli principle, according to which no two particles can
occupy the same fundamental state. The second paragraph states that bosons tend to bunch together in exactly the
same state. This is the opposite of (E), thus (E) is incorrect. (D) is also the opposite of what the passage claims.
Bosons have integral spin values and fermions have half-integer spin. Answer (B) is incorrect because the passage
does not discuss the total number of particle types for bosons for fermions and answer (C) is incorrect because the
passage explicitly states that both fermions and bosons can exist in groups.

105. (A). The passage states that the Pauli principle prohibits any two particles from inhabiting the same fundamental
state. Further, you know that the Pauli principle should be applied to fermions, which include electrons, protons, and
neutrons, but not bosons (from the second paragraph). Answer choice (A) discusses electrons, which are fermions,
avoiding occupation of identical energy levels, so (A) is relevant and thus the correct answer. As for (B), a charged
particle in a magnetic field neither provides the criteria for a fermion nor references inhabitance of the same state.
Answer (C) does not specify the type of particle. Answer (D) is about photons, which are stated in the passage as
bosons, to which the Pauli principle does not apply. Regarding (E), the passage explicitly states that the Higgs particle
is a boson, so the Pauli exclusion principle definitely wouldn't apply here (the beginning of the second paragraph
explains this quite clearly).

106. III only. You are told that Frey points out that humans are often intrinsically motivated, and that such
motivation explains heroism, craftsmanship, and other drives that do not fit neatly into the model of a narrowly
focused gain-seeker. The first statement is incorrect because the craftsman in question is working for money, rather
than for the inherent love of the work. The second statement is incorrect because even though the journalist may
appear to act heroically, his motivations are related to his career. The third statement is correct because the
economist in question is working without hope of monetary reward.

107. (D). (A) is incorrect because the passage never says that Homo economicus is a useful way to form mathematical
models. (B) is incorrect because the passage never says Homo economicus is a theoretically useless construction,
only that it is a problematic one. (C) is wrong because there's no reason to believe that the people who criticize the
theory don't fully understand its function. (D) is correct because the second paragraph of the passage describes
numerous problems with Homo economicus, all of which center around simplifying people's motivations and
assuming they understand more than they actually do. (E) is incorrect because the passage never says that Homo
economicus fell out of favor. You don't know that the handful of critics cited is representative of "most economists."

108. I and III only. Statement I is correct because of Veblen and Keynes, who allege that homo economicus assumes
far too great an understanding of macroeconomics on the part of humans. II is incorrect (and too extreme)
because, although Tversky says that people are unconcerned by small chances of large losses, but quite risk-averse
regarding small losses, he does not imply that there is a broader pattern. Statement III is correct because of Amartya
Sen, who says that people can and do commit to courses of action out of morality, cultural expectations, and so
forth.


109. (D). The gist of this sentence is that while scientists condemn certain practices as flawed, the methods they
themselves use are subject to many of the same flaws, according to Feyerabend. You are thus looking for a word,
synonymous with repudiate, that means to "condemn, censure," or "denounce." Decry is the right word.


110. (A). According to the passage, Feyerabend wants to demonstrate that historic instances of scientific progress
were themselves marked by these flaws, and thus should not be seen as flaws at all. To this end, he describes a
situation that any scientist would agree is an example of progress, and shows how it made use of practices that are now
condemned by scientists, including "begging the question," the practice of using a conclusion as evidence for that
same conclusion (a little bit like using a vocabulary word in the definition for that same word), and using
"propaganda." Feyerabend basically implies that scientists have a choice between throwing this out as an example of
good science or accepting these practices as part of good science. Since scientists are unlikely to say that the
introduction of heliocentrism was a bad thing, they will be forced to revise their account of what is and is not
acceptable scientific practice. Choice (B) is wrong because the point of the case study is that Galileo is a good
example of science. As for choice (C), "subjectivity" is called "seriously flawed" in the first paragraph. Choice (D) is
nonsensical — it basically says tautological reasoning is acceptable only when it's being tautological. It's certainly
not why Feyerabend makes use of a case study. (E) misses the point completely — Feyerabend is using an example
from history to defend certain ways of doing science.

111. (C). The first sentence of this paragraph defines Boal's work as a response to a culture of apathy. (A) is incorrect
— the paragraph describes a response, not an elaboration. (B) is incorrect because it is not until the last paragraph that
the author provides a rationale for the two theatres. (D) is beyond the scope of the passage. (E) is incorrect because
there is no evaluation and the styles are not contrasting.


112. (D). This is essentially a vocabulary question. "Power" is one meaning of agency, and this is the only meaning
that makes sense in the context of creating ways to free themselves. (A) and (B) are other meanings of agency that do
not make sense in context. (C) might be related to agent but has no relationship to agency or the passage here. (E) is
incorrect as it implies domination over others.

113. (E). The last paragraph defines a "spect-actor" as someone who simultaneously witnesses and creates theater.
In the second paragraph, the passage states that at image events everyone is at once theater-maker and witness. (A) is
incorrect, as theater is not mentioned. In (B), Boal specifically says that catharsis keeps people passive (also, the
audience member is not acting, which is crucial to being a "spect-actor"). (C) is incorrect and, to an extent, backwards
— the passage said that Boal found that position analogous to that of a passive audience. (D) is too broad, given the
first paragraph about traditional theater.


114. (A). At the end of the first paragraph, the author paraphrases Boal: theater etiquette creates a kind of culture of
apathy where individuals do not act communally… and remain distanced from art. (C) and (E) can be eliminated.
(B) and (D) are wrong because Boal states that traditional theater discourages political action by providing catharsis.
(A) is correct because Boal states that actors do go into the audience, so they are not prevented from doing so.


115. (D). This choice is a characteristic of an Image workshop, not a Forum workshop. In the second paragraph, the
passage states that Forum workshops begin with a narrative skit (A) then the facilitator — or mediator (E) —
encourages spectators to assume the role of the protagonist (B). Choice (C) is justified as the paragraph states that
performances do not always arrive at a satisfactory solution.


116. II only. In the third paragraph, the natural rotation of a galaxy, surrounding supernovae, and density waves
are listed as examples of the outside influence evidently required for a theoretically unstable cloud to initiate
collapse. The first statement is a trap — fusion appears in the first paragraph and the author does not suggest that it
leads to cloud contraction. (While the passage does suggest that fusion is related to supernovae and that supernovae
can contribute to cloud collapse, don't fill in the gaps yourself — the passage simply does not provide enough
information for you to infer that fusion is part of a series of events that begins cloud contraction.) The second
statement is true (realizing this requires you to match up "explosions of stars" in the answer choice with "supernovae"
in the third paragraph). The third statement is a distortion — forcing debris inward, not outward, may cause cloud
contraction to begin.


117. (D). Choice (A) is true in real life, of course, but is not mentioned in the passage. (B) refers to the molecular
clouds in the second paragraph, not to our solar system. (C) is reminiscent of this sentence in the third paragraph —
The natural rotation of a galaxy can slowly alter the structure of a cloud — which does not refer to our solar
system. Correct answer (D) reflects that for a system of planets such as our solar system to form around a star
during cloud contraction, the presence of these heavy elements in the cloud is a necessity. (You are also told that
these heavy elements make up the Earth and even human bodies — so, they sound pretty necessary!) Choice (E) gets
the story backwards — heavy elements were needed to create the solar system, not vice-versa.


118. (C). The outward thermal pressure of the constituent gases (of the molecular cloud) is what is overcome in the
process of the collapse of the cloud. This is something that inhibits, or holds back, cloud collapse.


119. III only. The Norton-Polk-Mathis House uses typical Renaissance ideals as well as materials prevalent in the
Italian Renaissance. However, the passage certainly does not say that the house itself was built in the Renaissance.
(For one, it is in San Antonio!) The first statement is not true. According to the passage, the primary purpose of the
building is "to impress," so its purpose is not primarily utilitarian. The second statement is also not true. You are told
that the house radiates an air of strength, especially when juxtaposed with the other, seemingly fragile brick and
wood homes of the neighborhood, so you definitely can infer that the house "appears stronger than other nearby
homes." The phrase "radiates an air" and the word seemingly in the passage indicate that you are talking about
appearances of strength, so the word appears in the third statement is a very good match (you would not be justified
in inferring that the other neighborhood homes are actually weak — they just look that way).

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