10.1 Flashcards
Electric charges
Charged particles that exert an electric force on each other
Static electricity
Aka static charge
An electric charge that builds up on he surface of an object. The charge is bound to the surface and. Cannot move until it is given a path to escape
Friction
An opposing force that resists the relative motion of two objects
Electron affinity
The tendency of an object to hold onto electrons
Law of attraction
Particles with opposite charges attract each other
Law of repulsion
Particles with the same charge repel each other
Coulomb C
Unit for an electric charge
Otis equal to 6.24 times 10^18 electrons added to or removed from a neutral object
Conductivity
The ability of objects to allow electrons to move freely in them
Insulator
Is a solid liquid or gas that blocks the movement of electrons Ex Pure water Wood Plastic Rubber Metal oxides like rust
Conductors
Materials that allow the movement of electrons and allow them to change position Ex Copper Aluminum Iron Mercury Other metals
Conduction
The movement of transmission of electrons through a substance
Semi conductors
Aka fair conductors Materials that allow electrons to somewhat move but not as freely as in a Conductor Ex Water with dissolved minerals Moist air Human body Carbon Soil
Triboelectric series
A list of materials ranked from those most likely to lose electrons to those most likely to gain electrons
