Which of the Following Is NOT a Way in Which

question 59

Multiple Choice

Which of the following is NOT a way in which astronomers detect dark matter in clusters of galaxies?

• A) by determining the amount of mass necessary to gravitationally collapse clouds of gas to form the number of stars present
• B) by determining the amount of mass necessary to gravitationally hold onto the hot gas surrounding galaxy clusters
• C) by determining the amount of mass necessary to gravitationally hold a cluster of galaxies together
• D) by determining the amount of mass necessary to gravitationally lens images of distant objects
• E) None of the above; all of these are ways that astronomers detect dark matter in galaxy clusters.

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Definitions:

Laboratory Observation

A descriptive research method in which behavior is studied in a laboratory setting.

Experimental Research

A scientific approach that seeks to establish cause-and-effect relationships by manipulating variables and observing their effects on a controlled environment.

Case Study

A research method that involves the intensive examination of an individual or group, providing detailed insights into aspects of their life or condition.

Psychological Tests

Structured assessments used to evaluate mental health, cognitive abilities, personality traits, and behavioral patterns.