1. Forward motion: The object in orbit is constantly moving forward, tangent to the circle of its orbit. This motion is similar to throwing a ball horizontally - it wants to continue in a straight line.

2. Gravitational pull: The object is also being pulled towards the center of the larger object it's orbiting (like a planet around a star or a moon around a planet). This pull acts as a constant inward force.

How it works:

* The forward motion tries to make the object fly off in a straight line, but gravity keeps pulling it back towards the center.

* The balance between these two forces results in a curved path - an orbit.

Think of it like a ball on a string being swung in a circle. The ball wants to go in a straight line, but the string (like gravity) pulls it back towards the center, resulting in a circular path.