The Formation of a Star Requires the Consideration of the Effects

question 63

Multiple Choice

The formation of a star requires the consideration of the effects of gravity and the energy from nuclear reactions and a star will form only when both the temperature and density are sufficiently high.In the birth of a star:

• A) gravity produces the initial required high temperature and density.
• B) nuclear reactions produce the initial high temperature.
• C) nuclear reactions produce the initial required high density.
• D) nuclear reactions produce the initial required high temperature and density.

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Definitions:

Working Memory

A cognitive system responsible for temporarily holding and manipulating information in the mind for complex tasks such as reasoning and learning.

Sensory Memory

The first stage of memory, where sensory information is stored in its raw form for a very brief period, allowing the brain to process it further.

Information-Processing Model

A framework used in cognitive psychology that compares human thought processes to computer processing, involving the coding, storage, and retrieval of information.

Short-Term Memory

Activated memory that holds a few items briefly, such as digits of a phone number while calling, before the information is stored or forgotten.