That and the magnetic force
gravity/rotation
orbits of the planet around the sun
Rotation around the planets central axis.
The rotation of the planet on its axis of spin. The spin is responsible for the day and the night.
The force due to gravity of a planet is dependent on the mass of that planet (and to a lesser extent the radius/diameter). If a planet is less massive then it will have a lower gravitational force.
That would be gravity and inertia.
The gravity of Earth pulls the water onto the surface of the planet and is responsible for some of the propagation of waves. The gravity of the Moon and Sun pull on Earth's water and are responsible for the tides.
Gravity for the real motion, the Earth's rotation for the apparent motion.
It is necessary for a planet to rotate around a sun, or other large mass, because it is what allows the planet to stay at a fairly consistent distance away from the larger mass. If there was no rotation, the planet would go hurtling toward the mass. The rotation adds an outward acceleration to counteract the force of gravity from the larger mass.
The motion of a planet about it axis is called the rotation of a planet.
The motion of a planet about it axis is called the rotation of a planet.
The Earth's rotation on its axis creates day and night, while its orbital motion around the Sun causes the changing of seasons. These movements also influence the planet's shape and gravitational forces, affecting ocean tides and weather patterns. Additionally, Earth's rotation and orbit contribute to the planet's overall habitability and biodiversity.