PPT Slide
Long range force example:
planets in orbit (sun on planets),
electrons in orbit around a nucleus (nucleus on electron),
earth on you (your weight),
force between socks from dryer (static electricity),
force between refrigerator and magnets, etc.
Both gravity and EM are fundamentally long range forces
(the long range aspects of the EM force will be covered in 9C)
Long Range Forces act over a distance