Which of These Statements Correctly Describes the Rotation of the Milky

question 28

Multiple Choice

Which of these statements correctly describes the rotation of the Milky Way Galaxy?

• A) The disk rotates like a solid object (objects at all distances take the same time to complete an orbit), and the globular clusters have random orbits with no net rotation of the halo about the center of the Galaxy.
• B) Objects in the disk have random orbits with no net rotation of the disk about the center of the Galaxy, and the globular clusters rotate differentially (objects farther from the center take longer to complete an orbit than objects closer to the center).
• C) The disk rotates differentially (objects farther from the center take longer to complete an orbit than objects closer to the center), and the globular clusters rotate differentially (objects farther from the center take longer to complete an orbit than objects closer to the center).
• D) The disk rotates differentially (objects farther from the center take longer to complete an orbit than do objects closer to the center), and the globular clusters have random orbits with no net rotation of the halo about the center of the Galaxy.

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Definitions:

Experimentation

The process of conducting tests or trials to discover or verify something.

Statistical Reasoning

The process of using statistical methods and data analysis to make informed decisions or draw conclusions.

Field Experiments

Research studies conducted in real-world settings outside the laboratory to examine the validity of theoretical concepts in natural environments.

Natural Conditions

The state of the environment or circumstances that exist without human intervention or artificial influence.