The Figure Below Uses a Rubber Sheet as an Analogy

question 28

Multiple Choice

The figure below uses a rubber sheet as an analogy for Hubble expansion, with coins representing galaxies.The illustration demonstrates that

• A) galaxies may be sitting still, but will move farther apart as space expands.
• B) galaxies stand still, and distances are unchanged by the expanding universe.
• C) galaxies are repelled from each other, causing them to move away from each other.
• D) space is expanding in two dimensions only.
• E) galaxies are being flung outward by the Big Bang.

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Definitions:

Micelle

An aggregate of surfactant molecules dispersed in a liquid colloid, forming a structure with hydrophobic tails in the center and hydrophilic heads on the outside.

Carbon-carbon Double Bond

A strong chemical bond involving the sharing of two pairs of electrons between two carbon atoms, characterized by its reactivity and presence in unsaturated compounds.

Unsaturated Fatty Acid

A type of fatty acid that contains one or more double bonds within its hydrocarbon chain, often found in vegetable oils and associated with health benefits.

Hydrolyzed

Refers to the chemical process where a molecule is split into two or more parts by the addition of a water molecule.