Simple Harmonic Motion Explorer for A Level Physics

Explore simple harmonic motion with an interactive A Level physics simulator. Compare a mass-spring system and pendulum, then investigate damping, energy and resonance.

What this tool shows

  • How displacement, velocity and acceleration change during SHM
  • The relationship between period, mass, spring constant, length and g
  • Energy transfer between kinetic and potential energy
  • How damping reduces amplitude and changes the response
  • How driving frequency and natural frequency produce resonance

OCR A relevance

  • OCR A Module 5.3: Oscillations
  • The definition a = −ω²x
  • Mass-spring systems and pendulums
  • Free and forced oscillations, damping and resonance

Try these tasks

  • Check how the period changes when you alter mass or spring constant.
  • Compare the measured period with the simple harmonic formula.
  • Increase damping and observe what happens to amplitude and energy.
  • Switch on driving and find the frequency that gives the largest amplitude.