The gravity on Earth is relatively strong. It is not the strongest gravity in the solar system, but it is stronger than the gravity on most planets and moons. The acceleration due to gravity on Earth is approximately 9.8 meters per second squared. This means that an object that is dropped from a height of one meter will fall at a speed of approximately 9.8 meters per second after one second. The gravity on Earth is strong enough to keep people and objects on the ground, and it also prevents the Earth from flying away from the sun.