If a Light-Emitting Object Is Moving Away from You, You

question 102

Multiple Choice

If a light-emitting object is moving away from you, you observe its wavelengths to be ________ its wavelengths if it were at rest.

• A)longer than
• B)shorter than
• C)the same as

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Definitions:

Variables

Elements, features, or factors that are likely to vary or change within the context of a scientific study or experiment.

Correlation Coefficients

Statistical measures that indicate the extent to which two or more variables fluctuate together, ranging from -1 to 1, where 1 indicates a perfect positive correlation and -1 indicates a perfect negative correlation.

Cause and Effect

A relationship between events or things, where one is the result of the other or others, a combination of action and reaction.

Negatively Correlated

Describes a relationship between two variables where one variable increases as the other decreases.