Consider a Star with 2 Planets

question 9

Multiple Choice

Consider a star with 2 planets. The mass of planet A is the same as the mass of planet B. The orbit of Planet A is on average, closer to the star than the orbit of Planet B. Which of the following statements is true?

• A) Planet A is on average, moving faster than Planet B.
• B) Planet A is on average, moving slower than Planet B.
• C) The relative orbital speeds depend on the masses of the planets.
• D) Planet A moves with the same speed as Planet B.

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Definitions:

Familiar Place

A location known to an individual through previous experience or frequent visitation, evoking recognition and often comfort.

Forgetting Curves

A graphical representation of how information is lost over time when there is no attempt to retain it.

Long-Term Memory

A type of memory capable of storing large amounts of information for potentially unlimited duration.

Short-Term Memory

A component of human memory system that is capable of holding a small amount of information in mind in an active, readily available state for a short period of time.