A Synodic Month Is About Two Days Longer Than a Sidereal

question 3

Multiple Choice

A synodic month is about two days longer than a sidereal month.Why?

• A) The Earth-Moon system is revolving around the Sun.
• B) The Moon's orbit around Earth is tilted with respect to Earth's orbit around the Sun.
• C) The Moon must follow the ecliptic.
• D) The Moon's distance from Earth varies across its orbit.

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Definitions:

Ex Post Facto Design

Ex Post Facto Design is a research approach where investigators study variables after the events have occurred, analyzing the effects of naturally occurring differences without manipulation.

Correlational Study

A research method that examines the relationship between two or more variables to determine if a change in one is associated with a change in others.

Retrospective Study

A research design that looks back in time to analyze data from past records to investigate a particular outcome or phenomenon.

Prospective Study

A research design that follows participants forward in time to examine the relationship between specific exposures and outcomes.