ALEX Classroom Resource


AC Circuits: Crash Course Physics #36

  Classroom Resource Information  


AC Circuits: Crash Course Physics #36


Content Source:

Type: Audio/Video


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):
SC2015 (2015)
Grade: 9-12
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 Data
Crosscutting Concepts: Cause and Effect
Disciplinary Core Idea: Waves and Their Applications in Technologies for Information Transfer
Evidence Of Student Attainment:
  • 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 electricity
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.
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.
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
License Type: Custom Permission Type
See Terms:
For full descriptions of license types and a guide to usage, visit :
AccessibilityVideo resources: includes closed captioning or subtitles

PBSLearningMedia is free for teachers. Teachers need to create a free account to access all available resources. 

  This resource provided by:  
Author: Stephanie Carver