3D GRIDBUILDING - SCIENCE - PHYSICS

CHARGE

Charge is a fundamental property of matter; the exhibiting of a power of electrostatic attraction or repulsion over other matter, whether at the sub-atomic or grosser levels.



Charge can be either positive or negative:   like charges repel, whilst unlike charges attract.


For example, protons have a unit positive charge and electrons have a unit negative charge.



The magnitude of the electrostatic force between two points is proportional to the size of the charge at each point, and inversely proportional to the distance between them.



All electrically-charged matter produces (and is influenced by) magnetic fields.


This relationship between electricity and magnetism (electro-magnetism) is responsible for every single interaction within the Universe, large and small, apart from those arising from gravity.



Scientists are looking for a single unified force that can unite them together.



Anne Evans