The Earth completes one full revolution around the Sun in approximately 365.25 days, which is known as a tropical year. To determine the number of spins the Earth would have made during this period, we need to convert the number of days to hours and then calculate the number of complete rotations.
Number of hours in a day = 24 hours
Number of spins = Number of hours in a year / Number of hours per spin
Since the Earth completes one full rotation (spin) in 24 hours, we can substitute the values:
Number of spins = Number of hours in a year / 24 hours
Number of spins = 365.25 days × 24 hours/day / 24 hours
Calculating the expression:
Number of spins ≈ 365.25
Therefore, the Earth would have made approximately 365.25 spins when it moves around the Sun once.