Spark Timer, United Scientific
Physics Educational Materials
Physics Fundamentals Learning Activities
The spark timer is used for measuring velocity and acceleration of falling or moving objects.
When the tape is pulled through the timer a spark is created which burns tiny dots in the tape at a precise and same interval. The faster the tape is pulled through the timer the larger the distance between the dots. This allows students to calculate the acceleration. Spark tape, carbon disks, weight, and clamp are included.