Here's why:
* Newton's Law of Universal Gravitation: This law states that the force of gravity between two objects is proportional to the product of their masses and inversely proportional to the square of the distance between their centers.
* Gravitational Field Strength: This is a measure of the gravitational force exerted on a unit mass at a specific location. It's often represented by "g".
On Earth:
* The average gravitational field strength on Earth's surface is approximately 9.81 m/s².
* So, the gravitational force on a 1 kg mass on Earth's surface is:
Force = mass x gravitational field strength
Force = 1 kg x 9.81 m/s²
Force ≈ 9.81 Newtons
In other locations:
* The gravitational field strength varies slightly depending on your location on Earth (altitude, latitude, local geological features).
* On other celestial bodies, the gravitational field strength is different. For example, on the Moon, it's about 1/6th of Earth's gravity.
Therefore, you can't give a definitive answer to "how many Newtons of gravitational force are exerted on a 1 kg mass" without knowing the location of the mass.
