Definition:Ideal (Physics)

Definition
An ideal (or idealized) object is one in which certain attributes are approximated to zero or infinity.

Examples

 * A particle is a body whose size is approximated to zero.


 * An ideal chain is an inelastic thread whose stiffness and width are approximated to zero.


 * An ideal cord is an ideal chain whose mass is approximated to zero.


 * A sraightedge is a tool for drawing straight lines of unlimited length and perfect straightness.


 * A rod is a stiff body of a specified length whose width and mass are approximated to zero.