Electrostatics Flashcards
laws of electrostatics
similar repelles
opposites attract
charged objects attract neutral
force of attraction is always the same as the magnitude of charge
what is the rule of the electrostatic series
orderd form most-least lilley to attain electrons
if you rub rabbit fur and ebonite together, teh rabbit fur will becomes positivley charged and the ebonite iwll become negatiley charged (bc of how close they are to each end of hte scale)
what is grounding
add a wire
if the rod is (-), then the electrons will flow to teh ground bc it got repelled. if the rod is (+), then your electrons will flow from the ground.
what is the theory
if we bring a (+) charged rod to the neutral object, the electrons will attract
ONLY THE ELECTRONS MOVE
induced charged seperation
in what way of charging an electroscope includes the trasnfer of electrons
conduction
where do the electrons go? (conduction)
to the object with teh least amounts of electrons
what are the 3 ways of charging an electroscope
induction
conduction
grounding
what are conductors
allow electrons to flow freely
what are insulators
dont let electrons pass freely
paper, wood, glass
semi-conductor
allows electrons to flow, not easily
humans, water, carbon, sillicon (phones + electronics)
what is the diff between having no net charge and having no charge
having no net charge means the protons and neutrons cancel out
what is an example of a good electricity conducter AND HOW
if you have 2 diff ions that could seperate in water (salt), you now have a positive + negative charge.
what ar ehte 2 thigns you should always remember whne asnwering questions
- nature (+ or -)
- magnitude (+3 / -1)
