LSAT 157 – Section 3 – Question 23

LSAT 157 - Section 3 - Question 23

June 2020

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Question QuickView	Type	Tags	Answer Choices	Curve	Question Difficulty	Psg/Game/S Difficulty	Explanation
PT157 S3 Q23	+LR	Most strongly supported +MSS	A 21% 154 B 14% 152 C 18% 154 D 3% 147 E 44% 163	151 161 171	+Hardest	145.111 +SubsectionEasier

Superstring theory is a controversial new theory in physics that purports, unlike more established physical theories, to explain the nature and existence of gravity. A major problem with superstring theory is that to test it we would have to build a particle accelerator 100 trillion kilometers long. Another problem is that superstring theory has had no success in adequately explaining why the force of gravity is not stronger or weaker than it is.

Summary

Superstring theory tries to explain gravity. Other kinds of physics theories don’t try to explain gravity. One problem with superstring theory is that testing it requires building a particle accelerator 100 trillion kilometers long (which sounds impossible to do). Another problem is that superstring theory hasn’t successfully explained why gravity is as strong as it is.

Strongly Supported Conclusions

We do not know whether superstring theory’s explanation of gravity is correct.
Inability to be tested is a problem for a theory.
Lack of success in explaining why a force is not stronger or weaker is a problem for a theory that tries to explain that force.

Superstring theory would be more successful if superstring theorists attempted to explain why the force of gravity is not stronger or weaker than it is.

Unsupported. A problem with superstring theory is the lack of success it has had in explaining the strength of gravity. But this doesn’t mean theorists haven’t tried. They may have tried and failed.

Physical theories that are better established than superstring theory provide better explanations of physical phenomena than does superstring theory.

Unsupported. Although superstring theory hasn’t successfully explained the strength of gravity, that doesn’t imply there are other theories that provide better explanations of gravity or other physical phenomena.

Some physical theory more established than superstring theory has had at least some success in explaining why the force of gravity is not stronger or weaker than it is.

Antisupported. We’re told that more established physical theories don’t even attempt to explain the nature and existence of gravity.

A physical theory cannot be true if testing that theory would require us to build a particle accelerator 100 trillion kilometers long.

Unsupported. The fact superstring theory can’t be tested doesn’t mean it can’t be true. It could still be true, even if we can’t confirm that it’s true.

A theory that purports to explain the nature of a force is deficient if it cannot account for the strength of that force.

Strongly supported. We know superstring theory hasn’t been able to explain why gravity isn’t stronger or weaker. That means it hasn’t been able to “account” (explain) for the strength of gravity. We also know this is a “problem.” That means it’s a deficiency in the theory.

LSAT 157 – Section 3 – Question 23

LSAT 157 - Section 3 - Question 23

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Review Results

LSAT PrepTest 157 Explanations

Section 1 - Reading Comprehension

Section 2 - Logical Reasoning

Section 3 - Logical Reasoning

Section 4 - Reading Comprehension

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