Harmonic Motion

Be sure the simulation has finished loading before you begin.


Click on the problem number to initialize the simulation at the top of the page. Answer the question after you have run the simulation. You may should click and drag inside the animation to read the coordinates in order to obtain numerical values.

  • Problem 1
    The red mass is attached to a spring and set in oscillation as shown. What would be the frequency of oscillation if the mass were doubled?
  • Problem 2
    The red and the green masses are connected to identical (but invisible) vertical springs. What is the ratio of their masses?

The animator can also be used to illustrate concepts.