The gravitational force of the sun on the earth is

Question

Accepted Answer

The gravitational force of the sun on the earth is about half of the gravitational force of the moon.

**Explanation:**

Option 3 is correct because, despite the Sun's immense mass, its distance from the Earth is significantly greater than the Moon's distance. Gravitational force is directly proportional to the product of the masses and inversely proportional to the square of the distance between them (Newton's Law of Universal Gravitation: F = G * (m1 * m2) / r^2).

While the Sun's mass is much larger than the Moon's, the Earth is much closer to the Moon. This closer proximity to the Moon has a greater impact on the gravitational force than the Sun's larger mass. The net effect is that the Sun's gravitational force on the Earth is *less* than what one might intuitively expect, and it turns out to be approximately half the gravitational force exerted by the Moon. This is primarily due to the inverse square relationship with distance.

**Why other options are incorrect:**

*   **Option 1: Equal to the gravitational force of the moon:** This is incorrect. As explained above, the Sun's gravitational force on Earth is not equal to the Moon's. The Moon's proximity plays a significant role.

*   **Option 2: Almost double to the gravitational force of moon:** This is incorrect. The Sun's gravitational force is *less* than the Moon's, not double.

*   **Option 4: Three times greater than the gravitational force of moon:** This is incorrect. The Sun's gravitational force is significantly *less* than the Moon's, not three times greater. The Moon's proximity to Earth is the key factor here.