# ALEX Classroom Resource

## AC Circuits: Crash Course Physics #36

Classroom Resource Information

Title:

AC Circuits: Crash Course Physics #36

URL:

https://www.pbs.org/video/ac-circuits-crash-course-physics-36-z6ave0/

Content Source:

PBS
Type: Audio/Video

Overview:

This episode of Crash Course Phyics delves into the world of AC Circuits (or Alternating Currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much more to the physics of AC circuitry.

Content Standard(s):
 Science SC2015 (2015) Grade: 9-12 Physics 12 ) Use the principles of Ohm's and Kirchhoff's laws to design, construct, and analyze combination circuits using typical components (e.g., resistors, capacitors, diodes, sources of power). Unpacked Content Scientific And Engineering Practices:Analyzing and Interpreting DataCrosscutting Concepts: Cause and EffectDisciplinary Core Idea: Waves and Their Applications in Technologies for Information TransferEvidence Of Student Attainment:Students: Design combination circuits using typical components. Construct combination circuits using typical components. Analyze combination circuits using Ohm's and Kirchhoff's laws.Teacher Vocabulary:ammeter voltmeter series parallel model Kirchhoff's laws Ohm's law resistance current electric potential multimeter positive negative electrical components circuit voltage source conductors resistor color code circuit diagram heat charge static electricityKnowledge:Students know: The color code for the resistance of resistors. The basic principles of static electricity. How to construct electrical circuits. Several different components can be used to build an electrical circuit.Skills:Students are able to: Design and use models. Develop an appropriate experimental procedure. Create a data sheet. Collect and organize experimental data. Follow written and verbal instructions. Make measurements using standard units. Effectively manipulate laboratory equipment. Work safely in collaborative lab groups. Manipulate equations. Interpret graphical data. Solve mathematical equations. Use a multimeter.Understanding:Students understand that: Circuits are complete pathways through which current will flow predictably and will provide energy to the connected component(s). Circuits may be simple or complex.AMSTI Resources:ASIM Module: This standard could be met by minimal use of mathematics, however, the incorporation of more rigorous mathematics would deepen the students' knowledge. Circuit Basics; Ohm's Law; Resistors in Series; Resistors in Parallel; Kirchhoff's Rules.
Tags: ac circuit, alternating currents, capacitor, current, inductor, physics, resistor, voltage