Static Electricity

Question 1

Electroscope

Answer 1

a device used to determine if an object contains a positive or negative charge

Question 2

Electrostatic charges

Answer 2

voltage developed by an excess or lack of electrons on an object

Question 3

Lightning

Answer 3

a natural static charge that can produce extremely high voltage arcs

Question 4

Lightning arrestor

Answer 4

device designed to help prevent damage to equipment by transferring the energy of a lightning strike safely to the ground

Question 5

Lightning bolts

Answer 5

high-voltage arcs caused by lightning discharge

Question 6

What are the different ways lightning bolts can flow

Answer 6

cloud to cloud
cloud to ground
ground to cloud

Question 7

Lightning rods

Answer 7

metal poles that are generally pointed on one end ad mounted above a structure that is to be protected from a lightning strike

Question 8

Precipitators

Answer 8

devices that empty static electric charges to help capture and remove small particles from the aire

Question 9

Selenium

Answer 9

an element that exhibits photosensitive properties; its resistance changes inversely with illumination

Question 10

Static

Answer 10

stationary/not moving

Question 11

Thundercloud

Answer 11

a cloud that contains charged particles

Question 12

What causes static electricity

Answer 12

an imbalance of electrical charges

Question 13

Useful applications of static charges

Answer 13

copy machines
sand paper
air filters

Question 14

Is static electricity a current?

Answer 14

No

Question 15

Are static charges on insulators or conductors

Answer 15

insulators

Question 16

When does lightning travel from ground to cloud

Answer 16

when the ground is negative and the cloud is positive

Question 17

When does lightning travel from cloud to ground

Answer 17

when the cloud is negative and the ground is positive

Question 18

What material does a dry copy machine use on the drum

Answer 18

selenium