What term describes the movement of an object in an orbit around another object?

• A. Rotation
• B. Geocentric model
• C. Ocean Basin
• D. Revolution

Answer: (D)

The movement of an object in an orbit around another object is described by revolution. This term captures the orbital path the body follows around a central body, such as a planet circling the Sun or a moon circling a planet. Rotation, by contrast, is spinning on an object's own axis and does not describe motion around another body. The geocentric model is a historical idea about Earth's position in the cosmos, not a type of motion, and an ocean basin is a geographic feature unrelated to orbital movement. So, revolution best fits the concept of moving along an orbital path around another object.