Simple pendulum by photo gate


  1. String.
  2. Different Metallic balls in diameter.
  3. Metallic base.
  4. Metallic rod 80 cm
  5. Interior ruler.
  6. Metallic multi clamp.
  7. Photo gate and its timer.
  8. Metallic stand for photo gate.
  9. Protractor


  • This experiment is used to measure the acceleration of gravity by determining the periodicity of the harmonic motion of the simple pendulum.
  • In this experiment we used photo gate and its timer to evaluate the time directly.