Question

how long will it take for the moon to move from position 1 to position 5 in the diagram below? (what is half the approximate revolution of the moon around earth, or how long does it take for the moon to change from 1st quarter to 3rd quarter?) light from sun 2 weeks 4 days 1 month 1 week

Explanation:

Step1: Know the lunar cycle

The Moon's full cycle (from new moon to new moon) is about 29.5 days, approximately 4 weeks.

Step2: Calculate half - cycle

Half of the lunar cycle (from 1st quarter to 3rd quarter) is \( \frac{4}{2}=2 \) weeks.

Answer:

2 weeks