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Flashcards in Static Electricity Deck (12):

What is static electricity?

Charges that remain stationary on the surface of an object


What is the Law of Electric Charges?

Like-charges repel, different charges attract, neutral likes all


What is an insulator?

A material in which electrons can't move easily from 1 atom to another (charge on an insulator stays until neutralized)


What are ways to create static charge?

Friction, conduction, induction (temporary/permanent)


How does a pith ball electroscope work?

The pith ball is an insulator, surrounded by a conductor. If a charged object comes, pith is light so it moves (electric force)


How does the metal leaf electroscope work?

Leaves spread apart when electroscope is charged


What are the 2 ways to discharge an object?

1. Contact/grounding
2. Sparking


How do you discharge an object by contact?

Touching charged object to object with the opposite charge to neutrilize


How do you discharge an object by grounding?

Coming into contact with a large enough neutral object so that it can provide/absorb electrons


How do you discharge an object by sparking?

When an object is so charged, it's electric force is so strong, it is able to move/pull electrons over a distance to become neutral


Why do we get more static shocks in the winter than the summer?

Because the dry, winter air doesn't remove any of the charges our bodies pick up


How do charges in a thundercloud form?

During a storm, particles within the cloud collide. Rising ice crystals & falling hail rub together. Ice crystals become positively charged