Gravity is a fundamental force that exists in the universe and affects everything around us. It is the force that pulls objects towards each other. Without gravity, everything would simply float away. This force plays a crucial role in everyday life, from keeping our feet on the ground to the orbits of planets around the sun.

One of the most famous examples of gravitational force is the apple falling from a tree, which led Sir Isaac Newton to discover the law of gravity. This force also determines the weight of objects, meaning how heavy or light they are.

Let's consider an example. Imagine you are on a roller coaster going down a steep slope. As the roller coaster descends, you feel a force pushing you into your seat. This force is caused by gravity. The steeper the slope, the stronger the force you feel. That's why you feel lighter when the roller coaster goes up a hill and heavier when it goes down.

In summary, gravitational forces are the forces that attract objects towards each other. They are responsible for keeping us grounded, determining the weight of objects, and influencing various natural phenomena. Understanding gravitational forces is crucial for exploring the wonders of the universe and comprehending how things work in our daily lives.