In the Very First Phase After the Big Bang, When

question 62

Multiple Choice

In the very first phase after the Big Bang, when the Universe was about a microsecond old, space was filled with____.

• A) high-energy photons
• B) protons and antiprotons
• C) protons, neutrons, electrons, and positrons (anti-electrons)
• D) electrons, and positrons (anti-electrons)
• E) protons, neutrons, electrons

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Definitions:

Plastic Crash Dummies

Models made of plastic and other materials designed to simulate human physical responses in vehicle crash testing to improve safety.

Validity Effect

The phenomenon where a belief or a statement is more likely to be accepted as true the more it is repeated or encountered, regardless of its actual validity.

Exposure Effect

The psychological phenomenon where repeated exposure to a stimulus increases an individual's preference for that stimulus.

Contrast Effect

A psychological phenomenon wherein the perception or judgment of something is influenced by the comparison with something else, often leading to exaggeration of differences.