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WS_Science By You Activity_Resistance is Futile

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Page 1 + ward ' s science 5100 West Henrietta Road • PO Box 92912 • Rochester, New York 14692-9012 • p: 800 962-2660 • wardsci.com Find materials for this activity at wardsci.com. Discover more free activities at wardsworld.wardsci.com Resistance is Futile Submitted by: Chris P. Recommended Grade Level(s): Appropriate for: Grades 10 – 12 Time Requirements: Activity Time: Lab wil take about 1 class period (~55 minutes) for students to collect necessary data, and addition 1 or 2 class periods may be required for discussion and analysis of results. Teaching Topics & Concepts: Physics. Resistance. Voltage. National Science Standards Alignment The lab exercise aligns with the content requirements for the AP Physics 2 Unit 4 on Electric Circuits. It would also align with NGSS standards concerning electric current, resistance and circuits as well as some standards associated with the engineering standards, science methods and data analysis. Materials: • DC Power Supply—Variable Voltage • Knife Switch • Alligator clip leads • Voltmeter • Ammeter • 2 mm diameter graphite drafting pencil leads (2B, 1H, 3H, and 9H grades recommended) Safety: • There are no major hazards present as long as the current and voltage levels are kept relatively low ( <5.0 V ). Students should be forewarned that the pencil lead may become hot to the touch (this will affect pencil lead resistivity also). This content is being brought to you by the Ward's World, Science By You program. This program brings lesson and classroom activity ideas directly from science teachers around the nation right to you. From best practices to activities, Science by You offers inspiration for every subject and every grade level. Interested in sharing your own content? Learn how today. PMS200 Black 70% Cool Gray 10 Black Astra Regular get for free from dafont.com Scan the QR code for a digital copy of this activity.

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