• In class today we learned that Mobility is the most generalized term that refers to all types of movements.short term and repetitive acts of mobility are referred to as circulation. Example: college students going to school and then coming home every year for holidays and summer. Permanent move to a new location is migration . Ravenstein's laws for the distance that migrants typically move . most migrants relocate a short distance and remain in the same country. long distance migrants to other countries head for major centers because of economic activity . International migration- permanent move, voluntary or forced, to a different country.