<?xml version="1.0" encoding="UTF-8"?>
<tem xmlns="http://www.teachengineering.org/tem/elements/1.0/" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.teachengineering.org/tem/elements/1.0/ http://www.teachengineering.org/schemas/tem.xsd"><identifier>http://www.teachengineering.org/view_activity.php?url=collection/wpi_/activities/wpi_ohm_2/wpi_ohm2_act_joy.xml</identifier><docType>activity</docType><format>text/xml</format><language/><title>Ohm's Law 2</title><creator>K-12 Outreach Office, </creator><keywords><keyword>battery</keyword><keyword>circuit components</keyword><keyword>drain</keyword><keyword>electricity</keyword><keyword>light bulb</keyword><keyword>light intensity</keyword><keyword>Ohm's law</keyword><keyword>parallel circuit</keyword><keyword>series circuit</keyword></keywords><summary>In this extension to the Ohm’s Law I activity, students observe just how much time it takes to use up the “juice” in a battery, and if it is better to use batteries in series or parallel. This extension is suitable as a teacher demonstration and may be started before students begin work on the Ohm's Law I activity.</summary><engrConnection>
		
			
				Ohm’s law is the basis of all electrical systems. Electrical engineers use this equation to guide the design of electrical systems. Students need a strong foundation in Ohm’s law while designing circuits on their own.
			
		
	</engrConnection><learningObjectives><learningObjective>Ohm’s law</learningObjective><learningObjective>series/parallel circuits (ways to connect them and have an effect on V and I)</learningObjective><learningObjective>circuit components</learningObjective><learningObjective>power</learningObjective><learningObjective>devices that can be used to measure voltage and current</learningObjective></learningObjectives><cost unit="USDollars">10</cost><timeRequired unit="hours">3</timeRequired><publisher>TeachEngineering.org</publisher><contributors><contributor>Developed by Ozan Baskan; funded by Pratt &amp; Whitney</contributor></contributors><requirements><requires>http://www.teachengineering.org/collection/wpi_/activities/wpi_ohm_2/ohmslaw2questions.pdf</requires><requires>http://www.teachengineering.org/collection/wpi_/activities/wpi_ohm_2/ohmslaw2questions.doc</requires></requirements><eduStandards><eduStandard><id>S10252C4</id><locale>Massachusetts</locale><type>Science</type><description>5.1 Describe the different instruments that can be used to measure voltage, e.g., voltmeter, multimeter.</description><lowgrade>9</lowgrade><highgrade>12</highgrade></eduStandard><eduStandard><id>S101DE1E</id><locale>Massachusetts</locale><type>Science</type><description>5.2 Identify and explain the components of a circuit including a source, conductor, load, and controllers (controllers are switches, relays, diodes, transistors, integrated circuits).</description><lowgrade>9</lowgrade><highgrade>12</highgrade></eduStandard><eduStandard><id>S100C075</id><locale>Massachusetts</locale><type>Science</type><description>5.3 Explain the relationship between resistance, voltage, and current (Ohm's Law). </description><lowgrade>9</lowgrade><highgrade>12</highgrade></eduStandard><eduStandard><id>S1009B50</id><locale>Massachusetts</locale><type>Science</type><description>5.4 Determine the voltages and currents in a series circuit and a parallel circuit.</description><lowgrade>9</lowgrade><highgrade>12</highgrade></eduStandard><eduStandard><id>S1022C30</id><locale>Massachusetts</locale><type>Science</type><description>5.5 Explain how to measure voltage, resistance, and current in electrical systems.</description><lowgrade>9</lowgrade><highgrade>12</highgrade></eduStandard></eduStandards><geoCoverage>United States</geoCoverage><rights>Copyright 2012 - K-12 Outreach Office, Worcester Polytechnic Institute</rights><rights>http://www.teachengineering.org/policy_ipp.php</rights><isPartOf>http://www.teachengineering.org/</isPartOf><created type="W3CDTF">2011-11-08</created><gradeLevel lowerbound="9" upperbound="12">10</gradeLevel><audience>Teacher</audience></tem>

