Quiz 1
Part 1 of 1 - 92.0/ 100.0 Points
Question 1 of 25 4.0/ 4.0 Points
Which one of the following is not a system? A. a leaf B. a tree C. a mountain range D. Earth
Correct
E. All of these are examples of systems
Answer Key: E
Feedback: See "The system concept" in Chapter 1. All of the above examples are described as systems.
“A system may be large or small, simple or complex (Figure 1.6). It could be the contents of the beaker in a laboratory experiment or the contents of an ocean. A leaf is a system, but it is also part of a larger system (a tree), which is part of a still larger system (a forest).
“This figure shows a variety of systems. The entire diagram – mountains, river, lake – is one kind of system known as a watershed. The individual pieces enclosed by boxes, such as the river, are also systems. Even a small volume of water or lake sediment (foreground boxes) can be considered a system.” Figure 1.6, p. 9
“The Earth itself is a very close approximation to a closed system.”
Question 2 of 25 4.0/ 4.0 Points
In the illustration below, which of the three models depicts an "open system?
A. Model A B. Model B
Correct
C. Model C D. Models A and B E. None of the above
Answer Key: C
Feedback: “A closed system is one that does not allow matter to pass through its boundaries (but may allow energy). An open system allows both matter and energy to pass through its boundaries.”
Question 3 of 25 4.0/ 4.0 Points
The figure below depicts the evolution of the solar system. During which stage would the process of nuclear fusion begin?
A. Stage 1 B. Stage 2
Correct
C. Stage 3 D. Stage 4 E. Choices 3 and 4
Answer Key: C
Feedback: “3. Contraction raises temperature; process of nuclear fusion begins in central bulge – Sun begins to shine. Outer disk cools – now contains wide swath of rock debris. Larger chunks of debris begin to
Question 1 of 25 4.0/ 4.0 Points
Which one of the following is not a system? A. a leaf B. a tree C. a mountain range D. Earth
Correct
E. All of these are examples of systems
Answer Key: E
Feedback: See "The system concept" in Chapter 1. All of the above examples are described as systems.
“A system may be large or small, simple or complex (Figure 1.6). It could be the contents of the beaker in a laboratory experiment or the contents of an ocean. A leaf is a system, but it is also part of a larger system (a tree), which is part of a still larger system (a forest).
“This figure shows a variety of systems. The entire diagram – mountains, river, lake – is one kind of system known as a watershed. The individual pieces enclosed by boxes, such as the river, are also systems. Even a small volume of water or lake sediment (foreground boxes) can be considered a system.” Figure 1.6, p. 9
“The Earth itself is a very close approximation to a closed system.”
Question 2 of 25 4.0/ 4.0 Points
In the illustration below, which of the three models depicts an "open system?
A. Model A B. Model B
Correct
C. Model C D. Models A and B E. None of the above
Answer Key: C
Feedback: “A closed system is one that does not allow matter to pass through its boundaries (but may allow energy). An open system allows both matter and energy to pass through its boundaries.”
Question 3 of 25 4.0/ 4.0 Points
The figure below depicts the evolution of the solar system. During which stage would the process of nuclear fusion begin?
A. Stage 1 B. Stage 2
Correct
C. Stage 3 D. Stage 4 E. Choices 3 and 4
Answer Key: C
Feedback: “3. Contraction raises temperature; process of nuclear fusion begins in central bulge – Sun begins to shine. Outer disk cools – now contains wide swath of rock debris. Larger chunks of debris begin to