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AN ACCURATE AND EFFICIENT ANALOGY OF DICE-SHAKING AND RADIOACTIVE DECAY

Authors

  • Pongsak Khokhuntod
  • Ratchanoo Katman
  • Attapon Amthong -

Keywords:

Dice-shaking, Decay constant, Radioactive decay

Abstract

In teaching radioactive decay labs, dice are often used as metaphors for radioactive nuclei because the equipment is cheaper and safer than real radioactive elements. However, a common problem in experiments is that the dice decay constant deviates from the theoretical value. This problem may be caused by an incorrect theory. In this research, we study the decreasing numbers of dice after rolling by using the actual dice roll method and computer modeling method to calculate the decay constants compared with some theoretical values presented by IPST and Murray & Hart to find the correct theoretical value. In addition, we also consider the appropriate number of initial dice for being used in teaching. It is found that the initial numbers of 80 dice is sufficient to obtain a reasonable trend of decreasing dice, theoretically correct decay constant presented by Murray & Hart, and short time for doing the experiments. Therefore, this study provides a correct understanding of the decrease in the number of dice and proposes an efficient number of dice for teaching the experiments of an analogy of dice-shaking and radioactive decay.

References

สถาบันส่งเสริมการสอนวิทยาศาสตร์และเทคโนโลยี (สสวท.) (2555). หนังสือเรียนรายวิชาเพิ่มเติม ฟิสิกส์ เล่ม 5. กรุงเทพฯ: องค์การค้าของ สกสค.

Jesse, K.E. (2003). Computer simulation of radioactive decay. The Physics Teacher, 41(9), 542-543.

Klein, L., & Kagan, D. (2010). “Radio‐Active” Learning: Visual Representation of Radioactive Decay Using Dice. The Physics Teacher, 48(1), 45-45.

Kowalski, L. (1981). Simulating radioactive decay with dice. The physics teacher, 19(2), 113-113.

Murray, A., & Hart, I. (2012). The ‘radioactive dice’ experiment: why is the ‘half-life’ slightly wrong?. Physics Education, 47(2), 197.

Sahu, S. (2011). Model of radioactive decay using dice. Physics Education, 46(3), 255.

Santostasi, D., Malgieri, M., Montagna, P., & Vitulo, P. (2017). An experiment on radioactive equilibrium and its modelling using the ‘radioactive dice’ approach. Physics Education, 52(4), 045023.

Schultz, E. (1997). Dice shaking as an analogy for radioactive decay and first order kinetics. Journal of

Chemical Education, 74(5), 505.

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Published

2023-08-23

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How to Cite

Khokhuntod, P., Katman, R. ., & Amthong, A. (2023). AN ACCURATE AND EFFICIENT ANALOGY OF DICE-SHAKING AND RADIOACTIVE DECAY . PSRU Journal of Science and Technology, 8(2), 17–27. Retrieved from https://ph01.tci-thaijo.org/index.php/Scipsru/article/view/251630

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Section

Research Articles