How Everything Works on Instagram: "Static electricity is simply the buildup of electric charge on the surface of a material. It forms when two objects rub together and swap electrons — one ends up with extra electrons (a negative charge), while the other is left with fewer (a positive charge). Because opposite charges attract, a charged object can cling to or pull on nearby materials. That’s why a balloon rubbed on your hair makes the strands lift or stick to it. You notice static electricity m

Physics Uncovered on Instagram: "static friction is the force that keeps two surfaces from moving when they’re touching but not sliding. it resists motion and stops an object from moving when a small push is applied. as the push increases, the friction force also increases until it reaches its maximum limit, known as limiting friction. once that limit is passed, the object begins to move and static friction is replaced by kinetic friction. example: a box won’t slide across the floor until you pu