static electricity Flashcards
(9 cards)
what do two things with opposite charge do
attract
what do two things with the same charge do
repel
what is static charge
a charge which builds up in one place and is not free to move
what is static charge common in
insulators where current cant flow
how does static charge in friction happen
when two insulating materials are rubbed together, and the electrons will be scarped off one and put on the other
what kind of electrostatic charge does friction leave on the insulating materials
one positive and one negative electrostatic charge
what is a positive static charge always caused by
electrons moving elsewhere
what increases when static charge builds up
the voltage
what happens if the voltage gets large enough in static electricity
electrons can jump through the gap between the charged object and the earth- the spark
