Methods of Electrostatic Charging

JJ Thompson

He discovered negatively charged particles known as Electrons.

Ernest Rutherford

He discovered positively charged particles known as Protons.

Charging by Rubbing

When two objects are rubbed together, electrons transfer from one object to the other.

negatively; positively

In charging by rubbing, the object that gains electrons becomes _____ charged, while the one that loses electrons becomes _____ charged.

Charging by Induction

This allows an object to becomes charged without direct contact.

Coulomb’s Law

This law states that “as distance increases, the forces and electric fields decrease”.

Directly

The force between charges is _____proportional to the magnitude, or amount, of each charge.

Doubles

Doubling one charge _____ the force

Quadruples

Doubling both charges _____ the force.