2. How does earth orbits around Sun?

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The Earth's orbit around the Sun is a fascinating topic that involves concepts from physics and astronomy. Here’s a detailed explanation of how it works:

1. **Gravitational Force**: The primary force that governs the Earth's orbit around the Sun is gravity. The Sun, having a much larger mass than the Earth, exerts a gravitational pull on the Earth. This force keeps the Earth in orbit.

2. **Inertia**: According to Newton's first law of motion, an object in motion will stay in motion unless acted upon by an external force. The Earth is moving forward in space due to its initial velocity. If there were no gravitational pull from the Sun, the Earth would continue to move in a straight line.

3. **Centripetal Force**: The gravitational force acts as a centripetal force that pulls the Earth towards the Sun. This force is what keeps the Earth from flying off into space. The balance between the gravitational pull of the Sun and the inertia of the Earth results in a stable orbit.

4. **Elliptical Orbit**: The Earth's orbit is not a perfect circle but an ellipse, as described by Kepler's First Law of Planetary Motion. This means that the distance between the Earth and the Sun varies throughout the year. The point where the Earth is closest to the Sun is called perihelion, and the point where it is farthest is called aphelion.

5. **Orbital Period**: The time it takes for the Earth to complete one full orbit around the Sun is approximately 365.25 days, which defines our year. This period is influenced by the gravitational forces of other celestial bodies, but the Sun's gravity is the dominant force.

6. **Tilt of the Earth's Axis**: The Earth's axis is tilted at an angle of about 23.5 degrees relative to its orbital plane. This tilt is responsible for the changing seasons as the Earth orbits the Sun.

In summary, the Earth orbits the Sun due to the interplay of gravitational forces and inertia, resulting in an elliptical path that takes about a year to complete. The tilt of the Earth's axis also plays a crucial role in the seasonal changes we experience.
The Earth orbits the Sun because of gravity, which pulls it into an elliptical path around the Sun. This orbit takes about 365 days to complete, and the tilt of the Earth's axis causes the seasons.

How does earth orbits around Sun?

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