The Hubble Relation Links Which Two Characteristics of Distant Objects

question 154

Multiple Choice

The Hubble relation links which two characteristics of distant objects in the universe?

• A) distance and recessional velocity
• B) luminosity and surface temperature
• C) state of organization and the ages of clusters of stars
• D) stellar mass and luminosity

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Definitions:

Autonomous Investment

Investment in an economy that does not depend on the current level of income or production, often driven by innovation or governmental policy.

Aggregate Expenditure

The total amount of spending in the economy that includes consumption, investment, government purchases, and net exports.

Simple Spending Multiplier

The ratio of a change in real GDP demanded to the initial change in spending that brought it about; the numerical value of the simple spending multiplier is 1/(1 + MPC); called “simple” because only consumption varies with income.

Marginal Propensity

Describes the portion of additional income that an individual is willing to spend on consumption rather than saving.