Evaluate angular speed in the circular motion and gravitation topic and ask a (curious) question about it.
Evaluate centripetal accelerations and forces in action in the circular motion and gravitation topic and ask a (curious) question about it.
Evaluate gravitational field strength in the circular motion and gravitation topic and ask a (curious) question about it.
Evaluate linking orbits and gravity in the circular motion and gravitation topic and ask a (curious) question about it.