Chapter 11.1 Flashcards
Who built the first electrostatic generator?
Otto von Guericke
What is a device that produces static electricity?
Electrostatic generator
What is the most common electrostatic generator in use today?
Van de Graff generator
Where does electric charge always move to?
The outside of the charged object
What happens if lightning strikes a metal-roofed car?
The charge from the lightning bolt passes over the outer surface of the car and jumps to the ground.
Where does charge most concentrate on a conductor?
At the corner or point.
How does a lightning bolt form?
The negative charge at the bottom of the cloud induces a positive charge on the Earth’s surface, which then creates a channel between the two. Positive charge surges upward to the cloud and becomes a bolt of lightning.
Who discovered that lightning is caused by static electricity?
Benjamin Franklin
What is a device for protecting buildings and other structures from lightning strikes?
Lightning rod
Who invented the lightning rod?
Benjamin Franklin
What is the phenomenon also known as corona discharge in which a large number of electrons accumulates at a point and creates a bluish glow?
St. Elmo’s fire
Who created the Leyden jar?
Pieter van Mussshenbroek
What is an early device used to store an electric charge?
Leyden jar
Where is the charge held inside the Leyden jar?
Foil
The Leyden jar is considered an early type of what device used to store electric charge?
Capacitor
