If I held a ball high in the air but didn’t let it go, is this a demonstration of kinetic or potential energy? If you answer potential: what kind of potential energy is being stored? If you answer kinetic: how do you think kinetic energy is being used here?

i think potential because of gravitational potential energy being stored?

Explanation:

when insulating materials rub against each other, they may become electrically charged . electrons , which are negatively charged, may be 'rubbed off' one material and on to the other. the material that gains electrons becomes negatively charged. the material that loses electrons is left with a positive charge.

learn it on the intertant so you can solve