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®

Model No. ME-8089

 Centripetal Force Accessory

5

Note:

 If using a PASPORT interface, connect the photogate to a PASPORT Photogate Port.

4. 

Slide the pivot block through the groove to the center of the platform. (Note: The indent 

mark on the pivot block must face the zero position on the measuring tape.)  Tighten in 
place.

5. 

Slide the fixed mass holder onto the platform. Slide the nuts into the T-slot and tighten the 

thumbscrews over the nuts.

6. 

Insert the sliding mass holder through the groove on the top of the platform, such that the 

side indent faces the measuring tape.

7. 

Mount a 90 cm stainless steel rod vertically into a second “A” base stand.

8. 

Attach a Multi-Clamp to the upper end of the stainless steel rod (See Figure 3a).

9. 

Insert the shorter stainless steel rod (45 cm) horizontally into the Multi-Clamp.

Note:

 With an additional rod and clamp, you can insert another rod into the base stand and a 

longer crossbar(rod) into the clamp.  This creates a more stable structure.

10. 

Slide a Force Sensor onto the stainless steel rod and adjust the top screw to anchor it to the 

rod (Figure 3a). (Note: Be sure to keep the cords from the sensor out of the path of the 
rotating arm.) 

11. 

Attach the ball bearing swivel to the bottom of the Force Sensor.

12. 

Thread the cable from the swivel hook through the pulley and over the screw of the 

“sliding mass” holder (Figure 3b).

13. 

 Move the Force sensor directly over the pivot block in the center of the platform. (

Note:

 

You can adjust the radius of the sliding mass holder by moving the crossbar higher or 
lower.)

Figure 3a: Mounting the Force Sensor 

Figure 3b: Threading the cable through 
the sliding mass holder

sliding mass 

pulley

 cable

swivel

holder

clamp

Force

Sensor

cable

pivot block

Summary of Contents for ME-8089

Page 1: ...Instruction Manual Manual No 012 08425A Computer Based Centripetal Force Accessory Model No ME 8089...

Page 2: ...nt Setup 4 7 Suggested Experiment 7 10 Part I Centripetal Force vs Velocity 7 9 Part II Centripetal Force vs Mass 9 Part III Centripetal Force vs Radius 10 Sample Data Results 10 Appendix A DataStudio...

Page 3: ...nal Equipment Required Model Number 1 Connecting Cable 1 623 038 Rotating Platform ME 8951 2 Ball Bearing Swivel 12 5 g 1 648 08386 A computer N A 3 Pivot block 1 648 08422 DataStudio Software See PAS...

Page 4: ...he accessory attach to a PASCO Rotat ing Platform ME 8951 Spinning the Rotating Platform and allowing it to slow down without assistance varies the velocity The platform can be manually spun by hand o...

Page 5: ...steel rod 45 cm horizontally into the Multi Clamp Note With an additional rod and clamp you can insert another rod into the base stand and a longer crossbar rod into the clamp This creates a more stab...

Page 6: ...at the rotating arm at eye level To avoid possible injury from the rotating arm hitting the body keep at least 1 foot distance from the rotating arm 18 Open the appropriate DataStudio file on the exp...

Page 7: ...use with PASPORT interfaces ScienceWorkshop sensors with CI prefix require a ScienceWorkshop interface CI 6400 or CI 6450 or CI 7450 for operation Optional For constant speed studies a Motor Drive ME...

Page 8: ...n angular velocity In DataStudio use a Graph display to monitor the velocity of the rotating mass If velocity readings do not appear check your photogate connection and DataStudio setup See Appendix A...

Page 9: ...der increases the mass of the system Equal amounts of mass must also be added to the fixed mass to balance the arm as it rotates Centripetal force is directly measured by the Force Sensor Perform seve...

Page 10: ...he rotating arm Again centripetal force is measured by the Force Sensor Repeat the experiment at different radii i e vary the radius from 22 cm to 8 cm in 2 cm steps Use a graph or table to record the...

Page 11: ...o the Force Sensor and select pull positive Keep the sample rate at 10 Hz OR ScienceWorkshop a Open DataStudio and select Create Experiment b On the main toolbar click the Setup button to open the Exp...

Page 12: ...on under any other circumstances without the written consent of PASCO scientific is prohibited Limited Warranty PASCO scientific warrants the product to be free from defects in materials and workmansh...

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