review1 - Physics 2020 Exam 1 Review Questions Dr...

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Physics 2020 Exam 1 Review Questions Dr. Luttermoser’s Class 1. Robert Millikan made a fundamental discovery about electric charges in 1909. What was it? 2. What is the difference between conductors, semiconductors, and insulators? 3. What is meant by a conductor being grounded ? 4. What is Coulomb’s Law ? Compare it to Newton’s Law of Gravity. What is the principle of superposition? 5. Describe the electric field for a proton in isolation, and electron in isolation, an electron- proton pair, and a proton-proton pair. What is the magnitude of the electric field of a point charge? 6. What is meant by electrostatic equilibrium? 7. What is the electric flux and what does it measure? What is Gauss’s law ? 8. Review the summary of Chapter 15 in the textbook and learn the definition of all boldface terms in this chapter. 9. Review Examples I-1 (Coulomb’s force), I-2 (one-dimensional motion for charges), I- 3 (superposition principle of E -fields), I-4 (Serway & Vuille Textbook Problem: SV 15.30, electric field lines), and I-5 (SV 15.41, electric flux) in the class notes.
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