Stactic electricity Flashcards
What happens when you put like charges close
They repel
What charge do atoms have
Nuetrally charged
What is static electricity
Stactic electricity is the buildup pf electric charge on the surface of an object
How does the build-up of an electric charge happen
When electrons transfer from one material to another
What is an insulator
An insulator is a material that does not allow the easy flow of electric charge (electricity) or heat.
What happens when you rub an insulator
It becomes charged because of friction
What is a conductor
A conductor is a material that allows electrons to flow through it freely
What is action at a point
When an electric charge accumulates at sharp points of a conductor
What is a electric fireld
The region of space where an electric charge experiences force due to other charges
What is action at a distance
When two electrical charges are placed near each other, it causes a force
What casues a object to become positive or negative charged
When rubbed electrons are transferred from one object to the other
What is a Gold-Leaf Electroscope
A device that measueres and compares electrical charge in materials
What is polarazition
The process where charge sin a neutral object shift slightly due to the presence of a nearby charge object
Name and explain 3 dangers of Stacic electricity
1) Lighting
Thunderclouds build up a large static charge. When the charge is too great, it discharges to the ground as a lighting strike
2) Refeuling
When fuel flows through pipes, it can cause friction, which can cause a spark, which can cause an explosion
3) Operation theatres
Static charges can attract dust and germs, which can lead to infection risk.
