Tech Support: Colliding Pendulum



Helpful Tips

  • The most important part of setting up this piece of equipment is to be sure the stand is level. Follow the instructions for assembling the apparatus. There are several steps to perform to insure that the pendulum is level.
  • If you wrap each pendulum bob string a couple of times around the outer posts that project from the sides of the top piece, you can study pendulum motion. Try demonstrating in-phase and out-of-phase pendulums with this setup.


Q: No matter how hard my students try to launch the projectile straight toward the target, the projectile hits the photogate! What's wrong?

A: Collision problems are almost always due to a pendulum that is out of level. Please follow instructions for leveling the apparatus.