Suppose That,when the Stars in a Particular Open Star Cluster

question 22

Multiple Choice

Suppose that,when the stars in a particular open star cluster are plotted in a Hertzsprung-Russell diagram,the turnoff point is at an absolute magnitude of +3.What is the approximate age of this cluster? (See Figure 11-28,Comins,Discovering the Essential Universe,6th ed.)

• A) 100 million years
• B) 500 million years
• C) 4 billion years
• D) 1 billion years

---

Definitions:

Cause-and-Effect

A relationship where one event (the cause) makes another event happen (the effect).

Dependent Variable

In experimental research, it's the outcome or response that is measured to assess the effect of the independent variable.

Test Scores

Quantitative measurements derived from educational or psychological tests designed to assess various aspects of knowledge, skills, abilities, or performance.

Negatively Correlated

A relationship between two variables in which one variable increases as the other decreases.