Test Unit 8

Question 1

The force or push that causes electric charges to move is called:

Answer 1

Voltage difference

U8 C2

Question 2

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

Answer 2

. Movement of clouds causes a buildup of static electricity.
. When electrons build up enough it induces a positive charge on Earth
. Attraction becomes so great that the electrons go to Earth to neutralize.
Which is static discharge.
U8 C1

Question 3

44. Explain how a battery works.

Answer 3

Chemical reaction in the battery creates a voltage difference between the two terminals. When connected this pushes current through wire due to voltage difference. The electrons flow from the negative end to the positive end.
U8 C2

Question 4

49. How do you find the total resistance in a series circuit.

Answer 4

You add up the resistors

U8 C3

Question 5

53. Explain ferromagnetism. Make sure to include what is happening to the electrons in the atoms. You may draw a picture if that helps.

Answer 5

When non-magnetic objects are placed in a string enough magnetic field and become magnetized dues to poles within their atoms aligning(all electrons orient in the same direction)
U8 C4