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Difficulty: HardTranslating Literal Statements to Paraphrases

While early twentieth-century physicists initially conceptualized the atom as a miniature solar system where electrons orbited a dense nucleus in tidy, predictable paths, this classical model quickly proved inadequate. The advent of quantum mechanics revealed that an electron’s position is not a deterministic trajectory but rather a cloud of probabilities. Specifically, Werner Heisenberg’s formulation demonstrated that the very act of measuring a particle’s momentum inevitably introduces an uncertainty into its position, rendering simultaneous precise measurements of both properties physically impossible. Consequently, instead of tracing definite orbits, electrons are now understood to occupy wave-like orbitals, which represent regions of space where there is a high mathematical likelihood—but never an absolute certainty—of locating the electron at any given moment.

According to the passage, Werner Heisenberg’s formulation indicates that which of the following occurs when measuring a particle?

  1. A
    measuring a particle's position is the action that inevitably introduces uncertainty into its momentum.
  2. the process of determining a particle's momentum prevents an observer from simultaneously identifying its exact location.Answer
  3. C
    physicists can achieve precise measurements of both momentum and position if they avoid using Werner Heisenberg’s specific measurement techniques.
  4. D
    accurate calculations of a particle's momentum are only possible when its position is completely certain.

Answer

the process of determining a particle's momentum prevents an observer from simultaneously identifying its exact location.
The passage explicitly states that 'measuring a particle’s momentum inevitably introduces an uncertainty into its position, rendering simultaneous precise measurements of both properties physically impossible.' The correct answer is a direct paraphrase of this statement, replacing 'measuring momentum' with 'determining momentum' and 'uncertainty into its position... rendering simultaneous precise measurements... impossible' with 'prevents an observer from simultaneously identifying its exact location.'

Step-by-Step Solution

1
Identify the key detail in the question stem regarding Werner Heisenberg’s formulation.
The target text in the passage is: 'Werner Heisenberg’s formulation demonstrated that the very act of measuring a particle’s momentum inevitably introduces an uncertainty into its position, rendering simultaneous precise measurements of both properties physically impossible.'
This establishes the literal statement that must be translated into an accurate paraphrase.
2
Analyze the options to find the one that accurately restates the target detail using different words without altering the meaning.
The correct paraphrase must convey that measuring momentum creates uncertainty about location, rendering simultaneous precise measurements impossible.
To eliminate distractors that distort the meaning by reversing causality, misassociating modifiers, or introducing unsupported conditions.
3
Select the option that mirrors this meaning and verify that the other options contain paraphrase distortions.
The option stating that determining momentum prevents simultaneously identifying the exact location is the correct paraphrase.
This matches the meaning of the passage precisely while avoiding the logical distortions found in the other options.

Key Concept

Translating Literal Statements to Paraphrases
Estimated Time:2m 0s
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Translating Literal Statements to Paraphrases

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