Solving Real-World Problems with Electrical Engineering

Solving Real-World Problems with Electrical Engineering — page 3
Everything in the universe is made of tiny objects called atoms Each atom has even tinier particles called protons and electrons An electron has what is called a negative charge A proton has a positive charge Positive and negative charges try to pull each other together However two positive charges or two negative charges will push each other away Electricity results when electrons are pushed and pulled from atom to atom WHAT IS ELECTRICITY Electrons move around the center of an atom in oval-shaped patterns called ellipses 6