Batteries power much of your daily life. This episode of Crash Course Physics discusses how they work. It also explains how terminal voltage results from the natural internal resistance of every real battery.

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 Data

Crosscutting Concepts: Cause and Effect

Disciplinary Core Idea: Waves and Their Applications in Technologies for Information Transfer

Evidence 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 electricity

Knowledge:

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.