Planet 1 and Planet 2 Are Both in Circular Orbits

question 36

Multiple Choice

Planet 1 and planet 2 are both in circular orbits around the same central star.The orbit of planet 2 has a radius that is much larger than the radius of the orbit of planet 1.This means that:

• A)the period of planet 1 is greater than the period of planet 2 and the speed of planet 1 is greater than the speed of planet 2
• B)the period of planet 1 is greater than the period of planet 2 and the speed of planet 1 is less than the speed of planet 2
• C)the period of planet 1 is less than the period of planet 2 and the speed of planet 1 is less than the speed of planet 2
• D)the period of planet 1 is less than the period of planet 2 and the speed of planet 1 is greater than the speed of planet 2
• E)the planets have the same speed and the same period

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Definitions:

Egocentrism

The cognitive inability to differentiate between one's own perspective and another person's perspective, often noticed in children but can also occur in adults.

Conservation

The act of preserving, protecting, or restoring natural environments and wildlife to prevent depletion or extinction.

Abstract Thought

The ability to think about objects, principles, and ideas that are not physically present. It is a level of thinking that involves processing ideas beyond concrete reality.

Reversibility

In cognitive development, reversibility refers to the understanding that objects can be changed and then returned back to their original form or condition, a concept introduced by Jean Piaget.