Physics - Electricity - Static - Electric charge - Electric Charge
A 4-step lesson for younger students. Step 1: 'Everything is made of atoms. Atoms have: Protons (+ charge, in nucleus), Electrons (- charge, orbit nucleus), Neutrons (no charge, in nucleus). Normally, protons = electrons → object is neutral (no overall charge).' Step 2: 'Charging by friction: When y