Gravity: Using two Light gates to measure g

Note: A suitable single interrupt card is available as part of the Dynamics Extension Kit 1 (Product No 3801) or the Interrupt card set (Product No. 3803)

 Position a Light gate near the top of the vertical pillar and connect to input A on the EasySense data logger. Position a second Light gate lower down the pillar and connect to input B.  Open the EasySense program and select Timing. Select to record Acceleration from A to B with a single interrupt card, and enter the length of the interrupt card (e.g. 100 mm).  Select Start and drop the interrupt card through the Light gates. Ensure the card drops vertically through both gates, if not select the measurement and Delete.