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Investigate how the deflection of a cantilever depends on the distance of a load is hung from the point it is clamped.

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Introduction

 Name:  Asim Razaq  

Form:10/T

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- To investigate how the deflection of a cantilever depends on the distance of a load is hung from the point it is clamped.

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                                                    -    

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 - We know that cantilever is used for supporting one end of a construction. However, weight affects the flexibility of the ruler, used on the experiment. I predict that the bigger the distance, the bigger the deflection.

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                      :-  

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               Independent                        Dependent                        Controlled

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Middle

                 - I must make sure I use the same weight each time.

                 - I must keep the clamp in place.

- Two ‘1 metre’ rulers

- A clamp stand

                 - A ‘G’ Clamp

- 7N weight

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                            - Set up the apparatus like above diagram.

   - Measure from floor to the top of the ruler. (NOTE: measurement 0cm at bottom)

   - Decide where the measurement will be taken from.

   - Then clamp the ruler at the bottom to receive the correct measurement.

   - Decide how much the ruler will stick out of the table. (At 70cm)

   - Using the ‘G’ clamp, tighten it with the ruler to the table.

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Conclusion

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        There were a few anomalies in my results so the experiment was not accurate. This was due to several reasons:-

  • The ruler that was held by a clamp stand was not straight to get accurate measurement.
  • The table clamp may have not been fixed properly, therefore giving inaccurate measurements and also jilting back and forth.
  • The ruler may have not been flexible enough to give deflection.

In order to make the experiment more accurate, I would have to:-

  • Make sure that the table clamp is fixed onto the table properly.
  • Use rulers that are flexible to give out accurate measurements.
  • Try to use and appropriate clamp stand that will hold the ruler straight

-  -

...read more.

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