HomeSciencePhysicsWhat is Gravity?
Science·2 min·Updated Mar 11, 2026

What is Gravity?

Gravity

Quick Answer

It is a force that pulls objects toward each other, giving weight to physical objects and keeping planets in orbit. Essentially, gravity is what keeps us grounded on Earth and governs the motion of celestial bodies in space.

Overview

Gravity is a fundamental force in nature that attracts two bodies toward each other. It is what gives weight to physical objects and is responsible for keeping everything from apples falling from trees to planets orbiting the sun. The strength of this force depends on the mass of the objects and the distance between them, which means larger objects like Earth exert a stronger gravitational pull than smaller objects like a ball. In simple terms, when you jump, gravity is what pulls you back down to the ground. This force is essential for life on Earth; it keeps our atmosphere in place and allows water to flow in rivers and lakes. Without gravity, everything would float away into space, making it impossible for us to live as we do. Gravity also plays a crucial role in the universe by influencing the movement of stars, galaxies, and other celestial bodies. For example, the moon orbits Earth due to gravitational attraction, which creates the tides in our oceans. Understanding gravity helps scientists explore the universe and comprehend phenomena such as black holes and the expansion of space.


Frequently Asked Questions

Gravity is caused by the mass of an object. The more mass an object has, the stronger its gravitational pull.
On Earth, gravity keeps everything anchored to the ground, allowing us to walk, run, and move without floating away. It also affects how objects fall and how we experience weight.
Yes, gravity can change based on the mass of objects and their distance from each other. For instance, gravity is weaker on the moon than on Earth due to its smaller mass.