Electric Charges and Static Electricity

Electric Charges and Static Electricity

Open Ended

How are charges (electrons) transferred from the ruler to the metallic rod? Why?

Multiple Choice

Does the transfer of electrons from the ruler to the rod obeys the law of conservation of charges

• Yes since the total amount of charges changed

• Yes , since electrons only moved from the ruler to the rod

• No since since the total amount of charges changed

• No, since electrons only moved from the ruler to the rod

What is Static Electricity?

How is lightning formed?

Open Ended

Lightning is an example of static electricity since charges build up in clouds.

How do particles become charged in clouds?

Open Ended

During a lightning storm, what can cause the ground to become positively charged?

What is Electric Discharge?

Open Ended

Describe electric discharge.

Open Ended

A student places 2 charged objects near each other. The objects repel each other. He concludes that the objects must both be negative. Do you agree? Explain.

Multiple Choice

Two objects have unlike charges. How would the electric force change as they are moved apart?

• The electric force would become stronger.

• The electric force would become weaker.

Open Ended

What was/were the easiest concept(s) in the lesson?

Open Ended

What was/were the most difficult concept(s) in the lesson?

Poll

Rate your understanding.

• I understand and I can teach others.

• I understand and I can do it on my own.

• I sort of understand and I need more practice.

• I don't understand and I need help