layla2525 said:
Welcome to Physics Forumslayla2525 said:
The circular motion of the Earth around the sun is caused by the force of gravity. The sun's massive gravitational pull keeps the Earth in its orbit.
The Earth takes approximately 365.24 days, or one year, to complete one orbit around the sun.
The Earth's orbital velocity, or the speed at which it is moving around the sun, counteracts the sun's gravitational pull and keeps the Earth in its orbit.
No, the Earth's orbit is not a perfect circle. It is slightly elliptical, meaning that the distance between the Earth and the sun varies slightly throughout the year.
Yes, the Earth's orbit can change over time due to various factors such as gravitational interactions with other planets, the sun's changing mass, and the Earth's own internal processes. However, these changes are very small and occur over long periods of time.