1. Chapter 20 Study Guide Wednesday, January 27, 2010

2. Chapter 20, Section 1 Be able to discuss the interaction of like and unlike electric charges. Understand what electric fields are and how they surround a charge. Be able to describe static discharge. Be able to state how charges are built up. Understand how charges are transferred (3 methods). Know the vocabulary words for Section 1.

3. Chapter 20, Section 2 Understand the concept of potential energy. Be able to explain electrical potential. Be able to discuss resistance. Know Ohm’s Law. Know the vocabulary words from Section 2.

4. Chapter 20, Section 3 Know the difference between series and parallel circuit. Know the advantages and disadvantages of the series and parallel circuit. Be able to discuss household circuits. Know the vocabulary words in Section 3.

5. Chapter 20, Section 4 Be able to list and describe the safety devices that are used to protect us from electrical hazards. Be able to explain how grounding works. Be able to explain the relationship between voltage and resistance. Know the vocabulary words in Section 4.