centrifugal force is not a force. its centripetal. the reason something moves to the outside when spun is because it tends to try moving in a straight line. but whatever is turning it in a circle wont let it move strsight, so therefore it pushes toward the outside. Centrifugal force is what you might feel when you are in a car going around a turn and you get pushed to the outside. The reason for this is because you have momentum going straight and the car door is merely keeping you in the car, that is what centrifugal force is. What it feels like or seems like is happening.