1.Gravitational Force:
- Sun: The gravitational force exerted by the Sun is much greater due to its immense mass. It is approximately 28 times more massive than Earth.
2.Gravitational Acceleration:
- Sun: The gravitational acceleration on the Sun's surface is approximately 274 m/s² (metres per second squared).
- Earth: The gravitational acceleration on Earth's surface is approximately 9.8 m/s².
3.Impact on Objects:
- Sun: The Sun's strong gravity keeps planets, asteroids, comets, and other celestial bodies in orbit around it, forming our solar system.
- Earth: Earth's gravity keeps objects, including humans, animals, and various materials, firmly on its surface.
4.Weight Differences:
- Sun: If you were to weigh yourself on the Sun's surface (assuming it's possible to survive), your weight would be significantly higher due to the stronger gravitational pull.
- Earth: On Earth, your weight is determined by the gravitational force exerted on your mass by Earth.
5.Orbit and Tides:
- Sun: The Sun's gravity holds planets in their respective orbits around it, controlling the durations of their years.
- Earth: Earth's gravity influences the Moon's orbit and creates ocean tides by exerting a differential gravitational pull on different parts of the Earth.
6.Escape Velocity:
- Sun: The escape velocity required to leave the Sun's gravitational influence is much higher compared to Earth's.
- Earth: Earth's escape velocity is approximately 11.2 km/s, while the Sun's escape velocity is around 617.6 km/s.
It's important to note that while the Sun's gravity is much more potent, we experience and perceive Earth's gravity more directly in our daily lives. The Sun's gravity primarily determines our planet's orbital motion, while Earth's gravity affects objects and keeps them in place on its surface.
