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Mon Sep 23, 2019 2:27 am
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Question 1
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
45%
(medium)
Question Stats:
60% (02:51) correct
40%
(02:46) wrong
based on 894
sessions
History
Date
Time
Result
Not Attempted Yet
Question 2
B
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
35%
(medium)
Question Stats:
63% (01:04) correct 37%
(01:14) wrong
based on 913
sessions
History
Date
Time
Result
Not Attempted Yet
Question 3
A
Be sure to select an answer first to save it in the Error Log before revealing the correct answer (OA)!
Difficulty:
25%
(medium)
Question Stats:
67% (01:00) correct 33%
(01:13) wrong
based on 895
sessions
History
Date
Time
Result
Not Attempted Yet
By regarding the expanding universe as a motion picture, you can easily imagine ―running the film backward. If you do so, you find the universe getting smaller and smaller, and eventually you come to the moment when its whole mass is crammed into an infinitely dense point. Before that time it didn‘t exist, or at least it didn‘t exist in its present form.
Though there is some controversy about its exact age, most cosmologists would be inclined to agree that the universe has existed for about ten to twenty billion years. For scale, this can be compared to the four-and-a-half-billion-year age of the solar system, the time since the disappearance of the dinosaurs (sixty-five million years), and the age of the human race (about three million years).
The event that marked the beginning of the universe was christened the Big Bang; the term has now entered the vernacular of our culture. Originally the name referred only to the single initiating event; now, however, astronomers have come to use it to mean the entire developmental process of the birth and expansion of the cosmos.
The simple statement that the universe had a beginning in time is by now so obvious to astrophysicists that few give it a second thought. Yet it is a statement that has profound implications. Most civilizations embrace one of two opposite concepts of time. Linear time has a beginning, a duration, and an end; cyclical time, as its name suggests, continues around and around forever. In a universe that functions through cyclical time, the question of creation never arises; the universe always was and always will be. The minute you switch to linear time you immediately confront the vexing question not only of creation, but also of the Creator. Although there is no logical reason for the assumption, many people believe that if something comes into existence, it must do so in response to the actions of some rational being. Because of that belief, astronomers, even though they resist becoming involved in theological discussion, find themselves in one when they posit the Big Bang universe. It puts them squarely in the middle of an age-old debate.
One common misconception about the Big Bang that should be disposed of immediately is the notion that the universal expansion is analogous to the explosion of an artillery shell. The galaxies are not like bits of shrapnel speeding away from a central explosion. The raisin-in-dough analogy is a more satisfactory way to think about the whole process.
Though there is some controversy about its exact age, most cosmologists would be inclined to agree that the universe has existed for about ten to twenty billion years. For scale, this can be compared to the four-and-a-half-billion-year age of the solar system, the time since the disappearance of the dinosaurs (sixty-five million years), and the age of the human race (about three million years).
The event that marked the beginning of the universe was christened the Big Bang; the term has now entered the vernacular of our culture. Originally the name referred only to the single initiating event; now, however, astronomers have come to use it to mean the entire developmental process of the birth and expansion of the cosmos.
The simple statement that the universe had a beginning in time is by now so obvious to astrophysicists that few give it a second thought. Yet it is a statement that has profound implications. Most civilizations embrace one of two opposite concepts of time. Linear time has a beginning, a duration, and an end; cyclical time, as its name suggests, continues around and around forever. In a universe that functions through cyclical time, the question of creation never arises; the universe always was and always will be. The minute you switch to linear time you immediately confront the vexing question not only of creation, but also of the Creator. Although there is no logical reason for the assumption, many people believe that if something comes into existence, it must do so in response to the actions of some rational being. Because of that belief, astronomers, even though they resist becoming involved in theological discussion, find themselves in one when they posit the Big Bang universe. It puts them squarely in the middle of an age-old debate.
One common misconception about the Big Bang that should be disposed of immediately is the notion that the universal expansion is analogous to the explosion of an artillery shell. The galaxies are not like bits of shrapnel speeding away from a central explosion. The raisin-in-dough analogy is a more satisfactory way to think about the whole process.
1. In the context of the passage, the phrase "age-old debate" (Highlighted) refers to:
A. the question of whether ―the Creator‖ created the universe.
B. the controversy over linear versus cyclical time.
C. the debate over the disappearance of the dinosaurs.
D. the disagreement over the movement of galaxies
E. whether God exists or not
A. the question of whether ―the Creator‖ created the universe.
B. the controversy over linear versus cyclical time.
C. the debate over the disappearance of the dinosaurs.
D. the disagreement over the movement of galaxies
E. whether God exists or not
2. According to the passage, which of the following statements is NOT true?
A. Many people believe that a rational impetus created the universe.
B. The solar system was created immediately after the Big Bang.
C. The universe is larger today than it was in the past.
D. Different societies measure time differently.
E. Most cosmologists believe the universe to be 10 to 20 billion years old
A. Many people believe that a rational impetus created the universe.
B. The solar system was created immediately after the Big Bang.
C. The universe is larger today than it was in the past.
D. Different societies measure time differently.
E. Most cosmologists believe the universe to be 10 to 20 billion years old
3. Why does the author compare the universe to a motion picture?
A. illustrate that the universe has operated according to linear time.
B. demonstrate that the universe is actually older than most astronomers believe.
C. show that galaxies were formed about five billion years ago.
D. prove that the universe was created by a rational being.
E. to show the analogy between "God" and a "director"
A. illustrate that the universe has operated according to linear time.
B. demonstrate that the universe is actually older than most astronomers believe.
C. show that galaxies were formed about five billion years ago.
D. prove that the universe was created by a rational being.
E. to show the analogy between "God" and a "director"
Tue Feb 11, 2020 2:30 am
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Official Explanation
2. According to the passage, which of the following statements is NOT true?
Explanation
Review the gist of the passage and keep the author‘s main points in mind while evaluating the choices. Three of the choices match points the author makes, but (B) directly contradicts the time frames mentioned in Para 2, which indicate that the solar system is much younger than the universe itself. Note that your research for question 4 helps you here.
(A): Opposite. This is stated in Para 4.
(B): The correct answer
(C): Opposite. This is just another way of saying that the universe is expanding.
(D): Opposite. This is a main point of the first part of Par 4.
(E): Opposite. This is stated in Para 2
Answer: B
Explanation
Review the gist of the passage and keep the author‘s main points in mind while evaluating the choices. Three of the choices match points the author makes, but (B) directly contradicts the time frames mentioned in Para 2, which indicate that the solar system is much younger than the universe itself. Note that your research for question 4 helps you here.
(A): Opposite. This is stated in Para 4.
(B): The correct answer
(C): Opposite. This is just another way of saying that the universe is expanding.
(D): Opposite. This is a main point of the first part of Par 4.
(E): Opposite. This is stated in Para 2
Answer: B
Sat Feb 22, 2020 1:21 am
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Official Explanation
3. Why does the author compare the universe to a motion picture?
Explanation
Go back to the comparison to a motion picture described in para 1. What is the author‘s purpose in the first paragraph? To argue that the universe had a beginning in time. The comparison is used to reinforce this point: (A) reflects this.
(A): The correct answer
(B): Out of Scope. The author never makes this argument.
(C): Out of Scope. This point isn‘t made either.
(D): Out of Scope. The author doesn‘t argue that this must be true, but rather that it‘s a point of debate.
(E): Out of Scope. The author never makes this argument.
Answer: A
Explanation
Go back to the comparison to a motion picture described in para 1. What is the author‘s purpose in the first paragraph? To argue that the universe had a beginning in time. The comparison is used to reinforce this point: (A) reflects this.
(A): The correct answer
(B): Out of Scope. The author never makes this argument.
(C): Out of Scope. This point isn‘t made either.
(D): Out of Scope. The author doesn‘t argue that this must be true, but rather that it‘s a point of debate.
(E): Out of Scope. The author never makes this argument.
Answer: A
Hope it helps
Mon Mar 02, 2020 10:09 pm
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Passage Map
Topic and Scope
The author describes the evolution of the universe and its impact on old debates concerning time and creation.
Mapping the Passage
Para 1 argues that the universe had a beginning in time.
Para 2 provides specific dates to put the universe‘s age in context.
Para 3 describes the Big Bang and its relevance to the idea of an expanding universe.
Para 4 argues that the expanding universe has significant implications for cultural ideas of time and argues that science intersects with philosophy in this area.
Para 5 provides a metaphor that elucidates the nature of the universe‘s expansion.
Strategy Point:
Try to visualize abstract processes that are described in passages; it’s a useful way to “paraphrase” what’s happening and to avoid getting lost in the passage.
The author describes the evolution of the universe and its impact on old debates concerning time and creation.
Mapping the Passage
Para 1 argues that the universe had a beginning in time.
Para 2 provides specific dates to put the universe‘s age in context.
Para 3 describes the Big Bang and its relevance to the idea of an expanding universe.
Para 4 argues that the expanding universe has significant implications for cultural ideas of time and argues that science intersects with philosophy in this area.
Para 5 provides a metaphor that elucidates the nature of the universe‘s expansion.
Strategy Point:
Try to visualize abstract processes that are described in passages; it’s a useful way to “paraphrase” what’s happening and to avoid getting lost in the passage.
Official Explanation
1. In the context of the passage, the phrase "age-old debate" (Highlighted) refers to:
Explanation
What is the ―age-old debate discussed at the end of para 4? Read the previous lines for clues: astronomers are involved in a ―theological discussion‖ which involves the idea of a Creator. (A) summarizes this point in Para 4.
(A): The correct answer
(B): Out of Scope. The author notes that the problem of a Creator only arises when linear time is considered, and the phrase ties into the question of a Creator. Therefore, a debate between the two times is outside the scope.
(C): Out of Scope. The disappearance of the dinosaurs is mentioned in para 2 in a discussion of time frames, not the debate referred to in the phrase.
(D): Out of Scope. The author doesn‘t mention any debate about the movement of galaxies.
(E): Outside the scope.
Answer: A
Explanation
What is the ―age-old debate discussed at the end of para 4? Read the previous lines for clues: astronomers are involved in a ―theological discussion‖ which involves the idea of a Creator. (A) summarizes this point in Para 4.
(A): The correct answer
(B): Out of Scope. The author notes that the problem of a Creator only arises when linear time is considered, and the phrase ties into the question of a Creator. Therefore, a debate between the two times is outside the scope.
(C): Out of Scope. The disappearance of the dinosaurs is mentioned in para 2 in a discussion of time frames, not the debate referred to in the phrase.
(D): Out of Scope. The author doesn‘t mention any debate about the movement of galaxies.
(E): Outside the scope.
Answer: A
Hope it helps
