Dynamics refers to the branch of mechanics that deals with the movement of objects and the forces that drive that movement. If you're taking a physics class, you will likely study dynamics.

Dynamics has its origins in the Greek word dynamis, "force, power." In physics, dynamics is the study of bodies in motion and changes in that motion, and that idea can be applied to other areas as well. For example, we refer to "group dynamics" as the way people interact and work together. George W. Bush once observed, "Globalization has altered the dynamics in the White House, as well as between the White House and the Treasury."

Definitions of dynamics
  1. noun
    the branch of mechanics concerned with the forces that cause motions of bodies
    synonyms: kinetics
    see moresee less
    the science of flight dynamics
    type of:
    the branch of physics concerned with the motion of bodies in a frame of reference
Word Family

Test prep from the experts

Boost your test score with programs developed by’s experts.

  • Proven methods: Learn faster, remember longer with our scientific approach.
  • Personalized plan: We customize your experience to maximize your learning.
  • Strategic studying: Focus on the words that are most crucial for success.


  • Number of words: 500+
  • Duration: 8 weeks or less
  • Time: 1 hour / week


  • Number of words: 500+
  • Duration: 10 weeks or less
  • Time: 1 hour / week


  • Number of words: 700+
  • Duration: 10 weeks
  • Time: 1 hour / week