Test - Unit 8 Electricity and Magnetism

Question 1

43. Explain how lightening is created. Include which type of electric charge transfer it is.

Answer 1

• movement in the clouds cause a buildup of static electricity’s in clouds.
• when electron buildup becomes great enough, a positive charge is induced on Earth.
• eventually attraction is so great that the electrons travel from the clouds to the Earth to neutralize the charge imbalance.
  Unit 8 Concept 1 pg. 5

Question 2

Which of the following statements about electric charge is true?

Answer 2

electrical forces act at a distance

Unit 8 Concept 1 pg. 3