Electrostatics
No description yet. This curated deck is ready for daily study.
Card preview (18)
Protons are found where
Protons are tightly bound in the nucleus and I’m not free to move
Where are electrons found
Electrons move from one substance to another because it is on the outside of the orbitals
I’m charged or neutral objects have an ….Protons and Electrons
Equal
Conductors are charged by…
Friction
Positively charged object have… Protons than Electrons they have… Electrons
More protons and they had lost electrons
Static electricity
Charges at rest
Negatively charged objects have… Electrons than protons they have… Electrons
They have more electrons and protons and have gained electrons
Like electrostatic forces…
Repel
Opposite electrostatic forces…
Attract
Conductor
Substance through which charge can flow contacts electric current and example is an metal
Insulator
Does not allow charge to move from one part to another cannot conduct electrical current i.e. non-metals
Semi conductors
Only allow movement of electrons and a certain conditions i.e.silicon
PVC
Retains charge for a long time as a strong attraction for electrons electrons are wrapped on to it it is negatively charged
Perspex
Retains its charge for a long time it has loosely bound electrons electrons around off of it is positively charged
Principle of conservation of charge
The number of electrons lost from one substance is equal to the number of electrons gained by the other substance charge cannot be created or destroyed
Triboelectric charging
Charging true contact negatively charged has in excess of electrons neutral and also positively charged have a lack of electrons when a charged object such as a neutral object both object end up with the same charge
Earthing
To ensure that the object is neutral use your hand and transfer the electrons to or from the ground
Polarisation
The separation of charge in an object in the presence of another charged object