True or False. A piece of clear plastic that has alternating stripes of black paint and clear areas on it. The photogate consists of an infrared LED and a detector that can sense infrared light. We can tell, using the computer, when this light is blocked by the black stripes on the Picket Fence. 5. D t is measured using the photogate.
D t is the time it takes for one black stripe to pass by the photogate.
Choose two points on the line that you draw through your data points.