According to the Models of the Universe We Discussed in This

question 29

Multiple Choice

According to the models of the universe we discussed in this course, why do the galaxies move apart (why do we have Hubble's law) ?

• A) gravity is a repulsive force, once you get outside the Milky Way Galaxy
• B) each galaxy has net charge on it, and they repel by the laws of electricity
• C) supernova explosions happen more frequently on one side of each galaxy, giving the entire galaxy a push that moves it away from its neighbors
• D) as a result of the Big Bang, space itself is stretching, and this stretching carries the galaxies away from each other
• E) strong political and religious disagreements among the galaxies
• Section 29.5: What is the Universe Really Made of?

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Definitions:

Roman Catholic Natural Law Ethics

An ethical theory based on the belief that the moral law is discoverable by every person through the use of reason and is grounded in human nature and purpose, as taught within Roman Catholic theology.

Utilitarianism

A moral theory that emphasizes the best action is the one that maximizes utility, generally defined as that which produces the greatest well-being of the greatest number of people.

Kantian Ethics

A deontological ethical theory developed by Immanuel Kant, focusing on the principle that actions are morally right if they are done out of duty and adhere to a universal moral law.

Rawls's Ethics

A theory of justice proposed by philosopher John Rawls, focusing on fairness, equality, and moral decision-making under a veil of ignorance.