electricity chapter Flashcards
1
Q
What is static electricity
A
The build up of charge in insulating materials, it can cause a spark when dishcharged
2
Q
Why are most materials neutral in charge
A
Most materials contain a charge and have positive protons but negative electrons and these cancel each other out
3
Q
What happens when materials are rubbed together (in conducting materials too)
A
The friction between the two materials causes electrons to be rubbed off one of them and onto the other one.
For conducting materials the electrons just flow straight back again to the other material so no charge is built up.
4
Q
What does the way in which the electrons get transferred depend on
A
The specific materials involved
5
Q
During static electricity what heats transferred
A
Only negative electrons.
