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Q: What is the distance from the centre of the earth to the centre of the moon called?
  • A. Orbital length of the moon
  • B. Orbital length of the earth
  • C. Orbital radius of the moon
  • D. Orbital radius of the earth
Correct Answer: Option C - The distance from the centre of the earth to the centre of the moon is called orbital radius of the moon. On average, the distance is about 382,900 kilometers (238,000 miles) from the Moon's center to the center of Earth. The point on the Moon's orbit closest to Earth is called the perigee and the point farthest away is the apogee.
C. The distance from the centre of the earth to the centre of the moon is called orbital radius of the moon. On average, the distance is about 382,900 kilometers (238,000 miles) from the Moon's center to the center of Earth. The point on the Moon's orbit closest to Earth is called the perigee and the point farthest away is the apogee.

Explanations:

The distance from the centre of the earth to the centre of the moon is called orbital radius of the moon. On average, the distance is about 382,900 kilometers (238,000 miles) from the Moon's center to the center of Earth. The point on the Moon's orbit closest to Earth is called the perigee and the point farthest away is the apogee.