This experiment uses an electroscope to examine the ways of charging and determining the charge on an object.
acetate strips and cotton clothes
vinyl strips and wool clothes
The experiment is broken down into four parts:
I) Temporary Charging
II) Charging by Conduction
III) Determining The Type of Charge
IV) Charging by Induction
Determining The Type of Charge
Each part includes a procedures and a question section. Many of the questions require students to predict how the electrons will move from the stage, needle, scope, and strip.
Two PowerPoint presentations are included: one short one to explain how the strips are charged and a second longer one to review charging at the end of the lab.
The following files are provided:
electroscope_lab.docx (main lab handout)
electroscope_lab_key-.docx (lab key if using the negative strip)
electroscope_notes.docx (this file)
electroscopelab_chargestrips.pptx (PowerPoint on charging of strips)
electroscopelab_charging.pptx (PowerPoint on review of charging)
electroscopelab_objectivers.doc (objectives of lab)
All of the files come in one zipped file.
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Purchaser may duplicate materials for use with all students in their classes only. Purchaser may modify materials but must retain the original copyright notices. None of these materials, even if modified, can be used for commercial purposes or placed on public networks or on the Internet.
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electricity, electrostatics, statics, electroscope, experiment, lab, positive, negative, charge, electrons, protons, stage, needle, scope, plastic strip, cloth