IB diploma Physics HL IA

소개

본 문서는 2018 May IBDP 에 작성된 Hl physics IA 입니다. 약 3개월에 걸쳐 실험한 결과, 그래프와 그에 따른 분석을 어떻게 하셔야 하는지 참고하면 도움될 것 같아 올립니다.
raw data, processed data, uncertainty processing, data analysis 에 대한 부분이 특히나 자세히 기재되어있습니다.
제 주제는 How does change in water level affect the pressure difference required to pump the water out of a bottle? 입니다. 물리 내용중에 압력 부분을 사용한 부분이고, HL 이기에 교과서 내용보다 응용하여 분석했습니다.

목차

1. Introduction

2. Exploration
2.1. Background Information
2.2. Hypothesis
2.3. Methodology

3. Analysis
3.1. Raw Data
3.2. Processed Data
3.3. Example Calculations
3.4. Uncertainty Processing
3.5. Interpretation of Data

4. Evaluation
4.1. Conclusion
4.2. Strengths
4.3. Weaknesses and Improvements
4.4. Extensions

5. Bibliography

본문내용

Since I was very young, I have watched television documentaries on life in Africa with my grandmother. The world I have experienced through the documentary was stunning; people built their own hut as a shelter, harvested fruits from trees, and pumped out water from a public well.

The scene of pumping water from wells astonished me. I didn’t realize that, in most developing countries, getting water was such a tough task. Although, water pumps were used to irrigate water from places to places, people still had difficulties getting water when wells almost ran out of the water. When I watched the people struggling to pump up the water from the bottom of the deep well, a question arose. Does it really take more effort to pump out the water from the very bottom of a well than from the top? How much more effort should people make to pump water as the water level decreases to the bottom of a well?

Hence, I decided to delve into the physics of water pumps.

참고자료

· "Bernoulli Principle." Mitchellscience.Net, 2017, http://mitchellscience.net/Physics/BernoulliPrinciple.
· "Bernoulli's Equation." Princeton.Edu, 2017, https://www.princeton.edu/~asmits/Bicycle_web/Bernoulli.html.
· "Bernoulli's Principle." Thefreedictionary.Com, 2017, http://encyclopedia2.thefreedictionary.com/Bernoulli's+principle.
· Introduction To Pumping Systems. 2017, http://dec.alaska.gov/water/opcert/Docs/Chapter6.pdf.
· Klenck, Thomas. "How It Works: Water Well Pump." Popular Mechanics, 2017, http://www.popularmechanics.com/home/how-to/a152/1275136/.
· "Low Cost Water Well Drilling In Africa | The Water Page." Thewaterpage.Com, 2017, http://www.thewaterpage.com/cranfiel.htm.
· "Pressure." Hyperphysics.Phy-Astr.Gsu.Edu, 2017, http://hyperphysics.phy-astr.gsu.edu/hbase/pflu.html.
· Relation between pressure, velocity and area. "Relation Between Pressure, Velocity And Area." Physics.Stackexchange.Com, 2017, https://physics.stackexchange.com/questions/95620/relation-between-pressure-velocity-and-area.
· "Temperature Effects On Density." Butane.Chem.Uiuc.Edu, 2017, http://butane.chem.uiuc.edu/pshapley/GenChem1/L21/2.html.
· "Working Mechanism Of Hand Pump | Hiseapump." Hiseapump.Com, 2017, http://www.hiseapump.com/working-mechanism-of-hand-pump/.