Physics A First Course Electricity Chapter 15
Electricity Electrical Charges and Forces 15.1 Electric Charge and Current 15.2 Electric Current, Resistance, and Voltage 15.3 Capacitors
14A Investigation: Electric Charge Key Question: What is "static" electricity? *Students read text section 15.1 AFTER Investigation 15A
15A Investigation Topics Observe electric charge. Build an electroscope. Charge electroscope with objects. Observe behavior of electroscope.
Chapter 15.1 Objectives and Vocabulary Distinguish between a positive and negative net charge. Explain the meaning of Coulomb's law. Describe different ways of charging an electroscope. coulomb electrically neutral charged static electricity Coulomb's law electroscope charging by contact charging by friction polarized charging by induction
15B Investigation: The Flow of Electric Charge Key Question: How many electrons move when current flows? *Students read text section 15.2 AFTER Investigation 15B
15B Investigation Topics Build electric circuits. Use resistors. Measure voltage. Use potentiometers. Use capacitors. Measure current. Graph current vs. time. Calculate flow of charge. Estimate number of electrons flowing in a current. Calculate number of electrons flowing in a current.
Chapter 15.2 Objectives and Vocabulary superconductor Describe the relationship between electrons and current. Explain, at the atomic level, the difference between insulators, semiconductors, and conductors. Identify how voltage and charge are related.
Chapter 15.3 Objectives and Vocabulary Calculate power in a circuit. Calculate the cost of running an appliance. Distinguish between alternating and direct current. kilowatt
Three Factors Determine Capacitance