Question

1. be able to identify...

a. time it takes for the moon to revolve around the earth
b. time it takes to complete one lunar cycle (8 moon phases), and
c. the time it takes for the moon to complete one rotation.
d. what does this tell us about the length of a moons day and year.

1. during what moon ph

Explanation:

Step1: Recall moon - Earth revolution time

The time it takes for the moon to revolve around the Earth is approximately 27.3 days. This is called the sidereal month.

Step2: Recall lunar cycle time

The time it takes to complete one lunar cycle (with 8 moon - phases) is about 29.5 days. This is called the synodic month.

Step3: Recall moon rotation time

The moon takes about 27.3 days to complete one rotation on its axis. Since the moon's rotation period is the same as its revolution period around the Earth, we always see the same side of the moon from Earth.

Step4: Analyze moon's day and year implications

The moon's day (time for one rotation) and its year (time for one revolution around the Earth) are approximately the same, about 27.3 days.

Answer:

a. Approximately 27.3 days (sidereal month)
b. Approximately 29.5 days (synodic month)
c. Approximately 27.3 days (sidereal month for rotation)
d. The moon's day and year are approximately the same (about 27.3 days), which is why we always see the same side of the moon from Earth.