Electric Charge and Electric Force Lesson

Noncontact forces can cause objects to move toward or away from one another. What information do you need to predict which way objects with electric charges will move?

The arrows on the balloons show the direction of the force on each balloon. Why do you think that the arrows above the bottom balloons than the arrows on the top balloons?

What is one way you can make the electric forces between two objects stronger?

A metal rod has a negative electric charge. What will happen if the rod is placed close to a tennis table ball that has a negative electric charge?