Using the Doppler Effect, Astronomers Can

question 31

Multiple Choice

Using the Doppler effect, astronomers can

• A)calculate the velocity Earth's moon is moving toward Earth.
• B)calculate the distance from Earth to the Moon.
• C)detect whether a celestial object is moving away or towards the observer.
• D)detect a celestial object's chemical composition.

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Definitions:

Employer

A person or organization that hires people to work for wages or salary.

Endangerment

The act of putting someone or something at risk or in danger of being harmed or destroyed.

Laws

Rules and guidelines, established by a community or authority, governing behavior.

Static

Persistent or unchanging conditions; in electronics, it refers to random noise that can interfere with signal clarity.