noun
In economics, refers to the study of how economic variables change over time, often contrasted with statics (静学).
経済学では、動学と静学の両方を学ぶ必要がある。
In economics, it is necessary to study both dynamics and statics.
noun
Obsolete term for mechanics or dynamics in physics; modern Japanese uses 力学 (りきがく) instead.
See also: 力学
The term 動学 was once used for a branch of physics, but nowadays 力学 is the common term.