...AUSTRALIAN INTERNATIONAL SCHOOL 2332 Chino Roces Ext., Fort Bonifacio, Taguig, Philippines A Comparative Study of the Elastic Limit of Two Different Brands of Rubber Bands A Research Paper Presented to the Faculty of Australian International School In Partial Fulfillment of RAISE Program (Research in Australian International School for Excellence) Ramos, Anna Dominique A. Grade 10 School Year 2013 – 2014 TABLE OF CONTENTS TITLE PAGE i APPROVAL SHEET ii ACKNOWLEDGEMENT iii ABSTRACT iv CHAPTERS I. THE PROBLEM AND BACKGROUND OF THE STUDY Introduction 1 Conceptual Framework 2 Statement of the Problem 2 Hypothesis of the Study 3 Assumption of the Study 3 Significance of the Study 3 Scope and Limitation 4 Definition of the Terms 4 II. REVIEW OF RELATED LITERATURE Conceptual Literature 5 Research Literature 6 III. METHODOLOGY Research Design 7 Materials 8 Procedures 8 IV. PRESENTATION, ANALYSIS, AND INTERPRETATION OF DATA Table 4.1 9 Figure 4.1 10 V. CONCLUSION AND RECOMMENDATIONS Major Findings 11 Conclusion 11 Recommendation 11 REFERENCES 12 APPENDICES 13 Approval Sheet In partial fulfillment of the RAISED (Research in Australian International...
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...cars that have small front wheels and large back wheels. The reason for this is because during acceleration, the large wheels at the back can take advantage of the weight transfer during acceleration. The wheels at the front were made small due to aerodynamics. Since the small wheels at the front puts my car at a slope, air resistance will be greatly minimized. The second thing I had to consider was what type of rubber bands to use. I had access to large thin rubber bands, small thick rubbers bands and small thin rubber bands. I decided to use three small thick rubber bands tied together so that they acted like one giant rubber band. The reason I did this was because I felt that a small thick rubber band could store far more energy than a large thin rubber band or small thin rubber band if all of them were to be pulled 10 cm. If what I believed was true, then my car would make the maximum distance using the rubber bands I had. I also tied the three rubber bands together so that the energy would be increased. Three rubber bands allowed me to pull the rubber bands farther back without them snapping which also ultimately gave my car more stored energy, allowing it to travel farther and faster. The final thing I had to consider while designing the vehicle was how to make it climb the ramp without it slipping. I was using CD's as my large back wheels and plastic wheels as my small front wheels. I was sure they were going to slip on the smooth surface of the ramp. My solution...
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...one end of a rubber band around the vertical rod on your table. 2. Stretch the rubber band to a length of 10cm beyond its unstretched length, L0. [pic] 3. Place two rubber bands around the rod and stretch them together a length of 10cm Question 1-1: How does the combined force of two rubber bands compare to the force of just one rubber band? 1. Repeat with 3, 4 5 rubber bands. Activity 1-2: Measuring Force with a Force Probe Open file L03A1-2a (Measuring Force.ds) Procedure: Note: The Force Probe is attached to a cart. 1. Zero the Force Probe. (With nothing attached to the Probe press "Start" on the control panel and observe the force. If it is not zero press the small button "TARE" on the side of the Sensor and confirm that the force measurement is now zero. If the Force Probe still registers a nonzero force contact your instructor.) 2. Measure the unstretched length of one rubber band and record here: Lo=________ 3. Place one end of the rubber band around the vertical rod on the stand. 4. Attach the Force Probe hook to the free end of the rubber band. See Figure 1A on the next page. [pic] Figure 1A 5. Click "Start" and pull the Force Probe horizontally to stretch the rubber band 10cm (10cm beyond the unstretched length). See Figure 1B below. [pic] Figure 1B 6. Select the statistics feature [pic] and determine the mean value of the force. Record the force in Newtons. _______N 7. Now stretch the rubber band 20cm. ...
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