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Multiple Choice 1 - Name Date 1 The charge on a glass rod...

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Name: __________________________ Date: _____________ 1. The charge on a glass rod that has been rubbed with silk is called positive: A) by arbitrary convention B) so that the proton charge will be positive C) to conform to the conventions adopted for G and m in Newton's law of gravitation D) because like charges repel E) because glass is an insulator 2. An electrical insulator is a material: 3. A conductor is distinguished from an insulator with the same number of atoms by the number of: Page 1
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4. The diagram shows two pairs of heavily charged plastic cubes. Cubes 1 and 2 attract each other and cubes 1 and 3 repel each other. Which of the following illustrates the forces of 2 on 3 and 3 on 2?
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