Practical Problem Solving in University Physics

Applying physics concepts to solve real world practical problems

Problem solving is emphasized in college and university physics. One never truly learns a concept till one knows how to solve problems and make predictions in context. This book is for university undergraduate or gifted high school students, who wish to challenge their inquisitive minds. It is a compilation of 100 fun and useful problems and solutions with physics concepts. Examples are taken from Sports, Space, Earth, Construction, Cars and Planes, Human Body, Energy, Health Equipment, Home, and Technology.

Practical Problem Solving in University Physics is not exactly a textbook. It is an interesting exploration of how various questions appearing in the physical world around us and how to solve the problems by applying the concepts or theories in physics. For a detailed explanation of the formulae, readers or students can refer to the textbooks associated with the study course. This is a handy book that illustrates the problem-solving skills and critical thinking that complement textbook knowledge. It is amazing that such simple physics concepts are behind a lot of complex phenomena in the world. Below are some thought provoking questions covered in this book:

Where is the sweet spot in a baseball bat?
How old is the universe?
Why launch the space shuttle near the equator or Florida and not near the North Pole?
Why do scientists think the universe started with a Big Bang?
How much will the world sea level change if the global ice sheet is melted?
What causes the strong wind in storms?
What is the effect of global warming on sea level?
What factors determine whether a car flips on its side when turning a corner?
How to tell a car speed with no radar?
How to estimate the number of blood capillaries without actual counting.
How our ears tell the music direction?
Why does smoking raise blood pressure?
What limits our eyesight?
Why excessive exposure to sunlight may cause skin cancer?
How does eyeglass coating reduce reflection?
Why is diamond richly colored and sparkling?
How does a telecom network transmit signal?

There are books that explain these questions without using any math but with only conceptual description. However, in reading a conceptual book, one must put unreserved faith on the author. There is no way to check whether a conceptual claim is true. A numeric answer is in a sense a verification of truth. You can compare the numbers with reality and see if all is reasonable. With numeric understanding, you are equipped with the ability of finding objective, verifiable facts and making independent judgment. Hence in future when face with more information, you can tell whether a news is scientifically supported or fabricated; and similarly, whether the claims by a politician is supported by scientific facts or not.

Prof. Albert Fung earned his Ph.D. in physics from Columbia University in New York. He spent many years teaching and working in health science. With numerous publications, he commits himself to the teaching of university students the practical application of physics concepts. He is now a physics adjunct professor in college, and lives in Texas.

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