In the Late 1800s,Kelvin and Helmholtz Suggested That the Sun

question 95

Multiple Choice

In the late 1800s,Kelvin and Helmholtz suggested that the Sun stayed hot due to gravitational contraction.What was the major drawback to this idea?

• A)It predicted that the Sun would shrink noticeably as we watched it,but the Sun appears to be stable in size.
• B)It is physically impossible to generate heat simply by making a star shrink in size.
• C)It predicted that the Sun could shine for about 25 million years,but geologists had already found that Earth is much older than this.
• D)It predicted that Earth would also shrink in size with time,which would make it impossible to have stable geology on our planet.

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Definitions:

Spatial Rotation

The ability to mentally rotate three-dimensional figures accurately.

Prototypes

Original forms or models on which other objects, processes, or concepts are based or derived.

Classifying Objects

The cognitive process of organizing objects into categories based on shared characteristics or criteria.

Mental Sets

The tendency to approach situations in a certain way because that method worked in the past.