rotation
An orbit. In fact, orbits are not usually exactly circular. They are "elliptical".
A rotation refers to an object moving around its own axis. On the other hand, a revolution refers to a movement of an object around another object - in this case, around the Sun.
because the moon has to rotate around the world
It would be called a revolution.
The movement of one object around something else is called revolution (a rotation is when an object moves around an axis that is part of the object itself). One year = one revolution.
An orbit. In fact, orbits are not usually exactly circular. They are "elliptical".
one complete circular movement made by one object around another object
A rotation is a movement of an object in a circular motion. A two-dimensional object rotates around a center (or point) of rotation. A three-dimensional object rotates around a line called an axis.
For circular movement, you need a force that pulls an object towards the center of the motion. This is a consequence of Newton's Second Law, since circular movement implies acceleration towards the center.
An imaginary line around which an object rotates.
an axis
That imaginary line is called as "ORBIT".. Each space object spins around itself, in a particular path called as "ORBIT"
That would be the axis.
orbit
A force that acts on a body moving in a circular path and is directed around the object which the body is moving
It is called rotation.
Centripetal force is necessary to keep an object in a circular path.