If a Star Is Moving Away from Earth, the Doppler

question 46

Multiple Choice

If a star is moving away from Earth, the Doppler effect will cause the frequency of the star's light to shift to a __________ frequency, causing a __________ shift.

• A) higher, red
• B) higher, blue
• C) lower, blue
• D) lower, red

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Definitions:

Protocells

Simple, self-organized, prebiotic structures that mimic living cells, thought to be key in the origin of life.

Metabolic Reactions

Chemical reactions in living organisms that are necessary for the maintenance of the living state, including processes for assembly or breakdown of substances.

Molecule

The smallest unit of a chemical compound that can exist, consisting of two or more atoms bonded together.

Earth

The third planet from the Sun in our solar system, home to diverse ecosystems and the only known place in the universe supporting life.