Astronauts Orbiting Earth in the Space Shuttle Feel Weightless in Space

question 11

Multiple Choice

Astronauts orbiting Earth in the space shuttle feel weightless in space because

• A) they are farther away from the Earth.
• B) they eat less food while in orbit.
• C) the added gravitational pull of the Moon balances the Earth's gravitational pull.
• D) they are in constant free fall around the Earth.

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Definitions:

Quantity

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Key Input

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Supply

The total amount of a good or service available for purchase at any given price level in a market.

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Improvements or innovations in technology that enhance productivity, efficiency, or product quality.