static electricity

Question 1

conductor

Answer 1

material that lets electrical current move through it (paperclip)

Question 2

insulator

Answer 2

material that doesn’t let electrical current move through it (plastic, rubber)

Question 3

friction

Answer 3

when two objects are rubbed together and electrons are transferred to the other object (uncharged cloth + uncharged plastic rod)

Question 4

electrostatic series

Answer 4

a list of materials that help determine which material will be positively or negatively charged when rubbed together

Question 5

charging by induction

Answer 5

a method that temporarily changes an object without touching it

Question 6

charging by contact (conduction)

Answer 6

when a charged object comes in touch with a neutral object, elections move from high to low concentrations

Question 7

discharging objects

Answer 7

to get rid of any excess charges

Question 8

grounding

Answer 8

when a conductor provides a pathway to direct excess electrons to/from the ground

Question 9

spark

Answer 9

a quick release of electrons between two objects that are oppositely charged (lightning)

Question 10

lightning

Answer 10

when the negative charge at the base of the clouds induces a positive charge on the ground

Question 11

lightning rods

Answer 11

when the lightning hits the rod, the electric charges are carried through a cable down to the ground

Question 12

law of electric charges (attraction + repulsion)

Answer 12

1. opposite charges attract each other
2. charged objects attracted neutral objects
3. like charges repel each other