Lesson: Static Electricity Physics • 9th Grade

In this lesson, we will learn how to describe the forces experienced by electrically charged particles and objects.

Lesson Plan

Students will be able to

recall that there are two types of electric charges: positive and negative,
recall that opposite electric charges attract each other,
recall that like electric charges repel each other,
recall that the attractive or repulsive force between charges is greater if the charged objects of particles are closer together,
recall that the attractive or repulsive force between charges is greater if the magnitude of the charge is greater,
interpret graphs of force against the distance between charged objects or particles,
recall that electrons have a negative charge,
recall that protons have a positive charge,
recall that neutrons have no charge,
recall that electrons can be transferred between materials to create a buildup of charge, known as the static electricity,
recall that acetate and polythene rods can be given static charges by rubbing them with cloths.

Q1:

An acetate rod is rubbed with a cloth duster, giving the acetate rod a net positive charge and the duster a net negative charge.

Which object has gained electrons?

Which object has lost electrons?

Q2:

Two positive charges will each other. Two negative charges will each other. One positive charge and one negative charge will each other.

Q3:

What are the two types of electric charge called?