Experimental Values vs. Theoretical Values

In summary, when determining the speed of sound and comparing it to the theoretical value, it depends on the model used to predict the velocity. In some cases, the experiment values may be lower or higher than the theoretical value, leading to further experiments and recalculations. This has been seen in experiments such as the calculation of the electron g factor, where previous theoretical calculations were proven wrong through new and improved experiments.
  • #1
DBJKIBA
2
0
Hi, if say you are determining the speed of sound and you want to compare your values to the theoretical value, would you predict that your experiment values will be higher or lower than the theoretical value and why?
 
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  • #2
Depends on how you are determining the speed of sound.
 
  • #3
Ha! I would have answered: "it depends on the model used to predict the velocity".
 
  • #4
Hi DBJKIBA-
Many important experiments were successful BECAUSE the experimenters did not believe the theoretical value was correct. In fact it wasn't.
I recall a theoretical calculation of the electron g factor (by Karplus and Kroll) that was wrong, and the disparity with previous experiments led to a succession of new and better experiments, and a recalculation of g.
Bob S
 

1. What is the difference between experimental values and theoretical values?

Experimental values are the values obtained through actual experiments or observations, while theoretical values are calculated based on established theories or equations.

2. How do experimental values and theoretical values relate to each other?

Experimental values can be compared to theoretical values to assess the accuracy and validity of a theory or equation. If the experimental values closely match the theoretical values, it provides support for the theory.

3. Why do experimental values sometimes differ from theoretical values?

This can be due to a variety of factors, such as experimental error, limitations in measurement equipment, or unforeseen variables that affect the results. It is important to carefully analyze and evaluate any discrepancies between experimental and theoretical values.

4. How can experimental values be improved to better match theoretical values?

To improve the accuracy of experimental values, scientists can use more precise measurement equipment, conduct multiple trials, and carefully control variables in the experiment. It is also important to critically assess and refine the experimental methods being used.

5. Can experimental values ever be exactly the same as theoretical values?

In most cases, there will always be some degree of difference between experimental and theoretical values due to the inherent uncertainties and complexities of the natural world. However, by continually refining and improving experimental methods, scientists can strive to minimize these differences and increase the accuracy of their results.

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