Electrostatic Quiz

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Electrostatic Quiz

  1. 1. Electrostatic Quiz
  2. 2. When you hop out of a car and touch the metal door handle –what happens and why?
  3. 3. How can a comb become charged when rubbed?
  4. 4. Why does your hair stand up when you hold a van de graaf?
  5. 5. Which objects would be attracted to each other? _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ + + + + + + + + + + + + + + + + + +
  6. 6. Given this field pattern is the atom positive or negatively charged?
  7. 7. What charge do the balloons have? Why do you know that?
  8. 8. Name three benefits of charge
  9. 9. What is Earthing?
  10. 10. Give two dangers of charge?
  11. 11. How do electrons stay in orbit? nucleus electrons
  12. 12. How many electrons in a million coulombs? <ul><li>If an electron has a charge of -1.6 x10 -19 C </li></ul>
  13. 13. Coulomb’s Law is <ul><li>Use this to calculate the force between a 4C charge and a -10C charge that are held 2cm apart. (1/4 πε = 9000000000) </li></ul>
  14. 14. What is the force when? <ul><li>An electron is orbiting a calcium nucleus at a distance of 3 x 10 -11 m. Calcium has atomic number 20 </li></ul>

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