The Kelvin Temperature Scale Is Used in Astronomy Because

question 63

Multiple Choice

The Kelvin temperature scale is used in astronomy because

• A) at 0 K an object has absolutely zero energy.
• B) water freezes at 0 K.
• C) water boils at 100 K.
• D) hydrogen freezes at 0 K.

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Definitions:

External Ear

Portion of the ear that includes the auricle and external acoustic meatus; terminates at the eardrum.

Depth Perception

Ability to distinguish between near and far objects and to judge their distance.

Pupillary Dilation

The enlargement of the pupil, controlled by the muscular iris, in response to low light conditions or other factors.

Vitamin D

A fat-soluble vitamin essential for maintaining normal calcium metabolism and bone health.