What Is the Evidence for an Accelerating Universe

question 10

Multiple Choice

What is the evidence for an accelerating universe?

• A)White-dwarf supernovae are the same brightness regardless of redshift.
• B)White-dwarf supernovae are slightly brighter than expected for a coasting universe.
• C)White-dwarf supernovae are slightly dimmer than expected for a coasting universe.
• D)The Andromeda Galaxy is moving away from the Milky Way at an ever-increasing speed.
• E)There is far more dark matter than visible matter in the universe.

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Definitions:

Specific, Challenging

Goals that are clear and precise, requiring effort and commitment to achieve, and are often motivating.

Expectancy Theory

A motivation theory that suggests an individual's motivation is influenced by their expectation that their effort will lead to desired performance and that performance will lead to a desired reward.

First Level Outcome

The immediate results or effects that are directly attributable to a specific action or intervention.

Distal Goals

Long-term objectives that are often more abstract and challenging to measure, serving as the ultimate targets in planning.