Gravitation:
* Definition: A fundamental force of attraction between any two objects with mass. It's what keeps us on the ground, holds the Earth in orbit around the Sun, and governs the formation of galaxies.
* Nature: It's always attractive, meaning objects with mass pull on each other.
* Strength: The force of gravitation depends on the masses of the objects and the distance between their centers. Larger masses exert a stronger gravitational pull, and the force decreases rapidly as the distance between objects increases.
Acceleration Due to Gravity (g):
* Definition: The acceleration experienced by an object due to the force of gravity. It's the rate at which an object's velocity changes as it falls freely under the influence of gravity.
* Value: On Earth's surface, the acceleration due to gravity is approximately 9.81 m/s². This means that for every second an object falls, its downward velocity increases by 9.81 meters per second.
* Relationship to Gravitation: Acceleration due to gravity is a *result* of the gravitational force. It's the *effect* of the pull of Earth's mass on any object near its surface.
Key Points:
* Not the same thing: Gravitation is a force, while acceleration due to gravity is the effect of that force on an object.
* Dependent on location: The value of 'g' is not constant. It varies slightly depending on factors like altitude and the density of the Earth's crust beneath you.
* Newton's Law of Universal Gravitation: This law mathematically describes the relationship between gravitation, mass, and distance. It allows us to calculate the gravitational force between any two objects.
In summary: Gravitation is the fundamental force that causes objects to attract each other. Acceleration due to gravity is the specific acceleration that an object experiences because of that force.
