Kepler's First Law of Planetary Motion Implies That

question 43

Multiple Choice

Kepler's first law of planetary motion implies that

• A)the planets move at a constant speed at all points in their orbits.
• B)the planets all move around Earth in elliptical orbits.
• C)uniform circular motion is adequate to describe the motion of all planets.
• D)planets move in elliptical orbits around the Sun.

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Definitions:

Spending Multiplier

The ratio of change in aggregate output (or income) to a change in spending that caused the change, showing how initial spending leads to increased total spending.

Autonomous Investment

Investment that does not change in response to alterations in the overall economy or income levels, such as public infrastructure investments.

Equilibrium Real GDP

The level of Gross Domestic Product where aggregate supply equals aggregate demand, adjusted for inflation.

Planned Aggregate Expenditure

The total amount households, businesses, and the government plan to spend on goods and services at different levels of national income.