* Force of Gravity: This is a force, a push or pull, exerted by objects with mass. The more massive an object, the stronger its gravitational pull.
* Acceleration: This is a change in velocity over time. It's how fast an object's speed or direction is changing.
The Connection:
The force of gravity *causes* acceleration. When an object experiences the force of gravity, it starts to accelerate.
Here's how it works:
1. Newton's Law of Universal Gravitation: This law states that every object in the universe attracts every other object with a force proportional to their masses and inversely proportional to the square of the distance between them.
2. Newton's Second Law of Motion: This law states that the acceleration of an object is directly proportional to the net force acting on it and inversely proportional to its mass (F = ma).
Therefore, the force of gravity (F) acting on an object causes it to accelerate (a) according to Newton's second law.
Example:
When you drop an apple, it falls to the ground due to the force of gravity between the apple and the Earth. This force causes the apple to accelerate downwards.
In summary:
* Force of gravity is a fundamental force of nature that attracts objects with mass.
* Acceleration is a change in velocity over time, caused by forces like gravity.
The force of gravity *causes* acceleration, but they are not the same thing.