PASCO


Experimental Setup for ScienceWorkshop:

Part 1: Finding the Parallel and Normal Forces
  1. Connect the ScienceWorskhop interface to the computer and plug a Force Sensor into Analog Channel "A." Plug the other Force Sensor into Analog Channel "B."

  2. Slide the Angle Indicator into the slot of the track.
  1. Slide the Force Sensor Bracket into the slot of the track. Attach a Force Sensor to the bracket. This Force Sensor is referred to as the "Horizontal" Force Sensor.

  2. Using Pivot Clamps, attach 2 rods to the track on opposite sides.
  1. Using Multi-Clamps and another rod, hang the other Force Sensor so that its hook is approximately 15 cm above the track. This Force Sensor is referred to as the "Vertical" Force Sensor.

  2. Make sure the vertical axis of the Force Sensor is perpendicular to the track. Tighten down the Force Sensor.

  3. Tie one end of a 20 cm length of string to one end of the PAScar. Tie the other end of the string to the other end of the PAScar.

  4. Tie a LOOP of string to the string that is already on the PAScar.

  5. Hang the PAScar from the hook of the vertical Force Sensor. Lift the PAScar so that there is no force on the Force Sensor and simultaneously press the "TARE" or "ZERO" button.

  6. Tie string from the hook of the horizontal Force Sensor to the end of the PAScar closest to the bracket.

  7. Level the track.

  8. Adjust the height of the vertical Force Sensor just enough so that the PAScar does not make contact with the track. Make sure the PAScar is level relative to the track.

  9. Adjust the location of the Force Sensor Bracket so that there is NO sagging on the string and NO tension on the string.

  10. With no tension on the string, press the "TARE" or "ZERO" button.

DOWNLOADS for "Newton's Incline": Go to the "Procedures" section of the experiment.


Part 2: Finding the Accelerations

  1. Remove the Force Sensor Bracket, the Force Sensors, and the rigging for the vertical Force Sensor.

  2. Detach the Force Sensors from their interface.

  3. Attach the Motion Sensor and the Base and Rod to the track as in the above photo.

  4. Plug the Motion Sensor into Digital Channels 1 and 2. (Yellow into "1" and Black into "2.")

  5. Make sure the switch at the top of the Motion Sensor is set to "Cart."

  6. Level the track.

  7. (Optional) Place a No-Bounce Pad on the table at the other end of the track.

  8. In DataStudio, minimize the Parallel and Normal Force digits display window.

  9. Select, but do not maximize, the Velocity v. Time graph.
Go to Part 2 of the "Procedures" section of the experiment.