Tech Support: Straight Track



Helpful Tips

  • Try this! Compare the speed of the plastic marble with the speed of the steel marble at different places on the straight track. Students will be amazed to see that the marbles travel at the same speed!


Q: Why does the end of the track swivel?

A: You can position the end so that it catches the marble, or you can swivel it around so that the marble is launched and you can study projectile motion.

Q: Can I use different types of marbles on the track? I would like to try larger and smaller marbles?

A: For photogate data to be valid, the marble's diameter must pass through the beam. The track is engineered to work with 1.9 cm diameter marbles. If you use other sizes, please do not trust any of the photogate data!