How should this Beam Loading experiment be designed?

  • #1
Physical_Fire
18
1
Homework Statement
Attached.
Relevant Equations
No need.
The question and my attempt at a solution are attached. Thanks.
Question.png
Attempted_Solution.png
 
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  • #2
The beams are of various lengths. You did not specify where the supports or loads are to be placed, and there is no mention of distances in your table.
 
  • #3
I kept the beam length constant. Independent variable is the force and the dependent variable is whether the beam breaks or not. The rest are constant.
 
  • #4
Physical_Fire said:
I kept the beam length constant. Independent variable is the force and the dependent variable is whether the beam breaks or not. The rest are constant.
You cannot keep the beam length constant. You can keep the distance between the supports constant, but how to determine that distance, and where exactly should each beam be placed across them? And where should the load be placed?
A key aspect of experimental design specification is that others can repeat exactly what you did.

A trickier problem is what load to start with and by how much to increase it at each step. You cannot go back and try a slightly smaller load when it breaks. If you increase by large steps you will end up with a big margin of error; if you go in tiny steps it'll take a month.
Maybe that's beyond what is expected here, but can you think of an approach?
 
  • #5
haruspex said:
You cannot keep the beam length constant. You
Why not?
haruspex said:
A key aspect of experimental design specification is that others can repeat exactly what you did.
Why can't they repeat?
 
  • #6
haruspex said:
but how to determine that distance
That distance is an arbitrary distance within the scope of the beam, where different masses would be placed on it until the beam breaks
 
  • #7
Physical_Fire said:
Why not?
Because the beams provided are of various lengths.
Physical_Fire said:
Why can't they repeat?
Because as your description stands there is not enough information. You leave many details unspecified.
Physical_Fire said:
That distance is an arbitrary distance within the scope of the beam, where different masses would be placed on it until the beam breaks
Not good enough. You need to say how you will choose the distance. If the beam lengths available are 2m, 3m and 12m, what distance would you choose?

Now, I did not set this question. Maybe you are not expected to address these points. I can only discuss how I would answer it.
 
  • #8
I am genuinely confused. Why can't the loads be the independent variable as the loads are being changed?
 
  • #9
Physical_Fire said:
I am genuinely confused. Why can't the loads be the independent variable as the loads are being changed?
I did not say that. Which of my comments is that a response to?
 
  • #10
haruspex said:
You cannot keep the beam length constant.
This. All in all, I don't get the idea as to what the variables are.
 
  • #11
Gotcha
 

Related to How should this Beam Loading experiment be designed?

1. How should the beam loading experiment be designed to ensure accuracy?

The beam loading experiment should be designed with precise measurements, controlled variables, and multiple trials to ensure accuracy. It is important to carefully calibrate equipment, follow standardized procedures, and minimize external factors that could affect the results.

2. What factors should be considered when designing the beam loading experiment?

Factors such as the material properties of the beam, the type and placement of the load, the support conditions, and the data collection methods should be carefully considered when designing the beam loading experiment. These factors can significantly impact the results and should be controlled for in the experimental design.

3. How can we ensure repeatability and reproducibility in the beam loading experiment?

To ensure repeatability and reproducibility in the beam loading experiment, it is important to carefully document the experimental setup, procedures, and results. Additionally, conducting multiple trials, using standardized testing protocols, and having independent verification of results can help ensure the reliability of the experiment.

4. What safety precautions should be taken when designing the beam loading experiment?

Safety precautions such as wearing appropriate personal protective equipment, ensuring proper training for all personnel involved, and following established safety protocols are essential when designing the beam loading experiment. Additionally, it is important to have emergency procedures in place in case of accidents or unexpected events.

5. How should the data be analyzed and interpreted from the beam loading experiment?

The data from the beam loading experiment should be analyzed using appropriate statistical methods, such as calculating averages, standard deviations, and confidence intervals. The results should be interpreted in the context of the experimental design, limitations, and potential sources of error to draw meaningful conclusions from the data.

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