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Robert A. Millikan and the Oil Drop Experiment
作者：Isabel Bishop , Siyu Xian , Steve Feller
来源：[J].The Physics Teacher, 2019, Vol.57 (7)AAPT
摘要：In 2018, we celebrated the sesquicentennial birthday of Robert A. Millikan, a Nobel laureate in physics who worked among the greats such as Niels Bohr and Albert Einstein. His name, however, is perhaps not as widely known. He was born in 1868 in Morrison, IL, and moved with ...
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    Analytic solution for a variable-mass snowball
    作者：Carl E. Mungan
    来源：[J].The Physics Teacher, 2019, Vol.57 (7), pp.436-437AAPT
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      Question 1: Cost to carpool; Question 2: Waiting in TSA lines
      作者：Larry Weinstein
      来源：[J].The Physics Teacher, 2019, Vol.57 (7), pp.501-501AAPT
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        Laminar viscous flow through pipes, related to cross-sectional area and perimeter length
        作者：John Lekner
        来源：[J].American Journal of Physics(IF 0.782), 2019, Vol.87 (10), pp.791-795AAPT
        摘要：It has been proposed, as a rough rule of thumb, that for a given pressure gradient and fluid viscosity the total flow rate through a pipe of given cross-section is proportional to A 3 / P 2 where A is the area and P is the perimeter length of a pipe section normal to the pipe axi...
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          Rectilinear movement and functions through the analysis of videos with Tracker
          作者：Apolo Castaneda
          来源：[J].The Physics Teacher, 2019, Vol.57 (7), pp.506-507AAPT
          摘要：This article describes the implementation of a teaching strategy aimed at middle school students (aged 11–12 years) for the study of motion as a linear function. The activities were designed to promote a discussion about the variables involved, their relationship and variati...
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            Dangerous limits
            作者：Sanjoy Mahajan
            来源：[J].American Journal of Physics(IF 0.782), 2019, Vol.87 (10), pp.775-777AAPT
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              Discovering Quantities of Circular Motion of a Light-Emitting Toy Train Using a Smartphone Light Sensor
              作者：Serkan Kapucu
              来源：[J].The Physics Teacher, 2019, Vol.57 (7)AAPT
              摘要：In recent years, smartphone sensors have been frequently used in educational demonstrations to improve students’ understanding of certain physical kinematic topics. In particular, the sensors on modern smartphones enable students to use their phones as physics mini-laborator...
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                Acceleration discontinuities in dry-friction oscillations
                作者：Christopher Isaac Larnder
                来源：[J].American Journal of Physics(IF 0.782), 2019, Vol.87 (10), pp.784-784AAPT
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                  Entropy as Disorder: History of a Misconception
                  作者：Dan Styer
                  来源：[J].The Physics Teacher, 2019, Vol.57 (7)AAPT
                  摘要：Before reading this essay, go to your kitchen and find a bottle of Italian saladdressing. Get one that’s been sitting still for a while at a fixed temperature—that is,one in thermal equilibrium. You’ll find an oil-rich layer at the top of the bottle and avinegar-rich la...
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                    Two-Dimensional Collisions and Conservation of Momentum
                    作者：Lior M. Burko
                    来源：[J].The Physics Teacher, 2019, Vol.57 (7)AAPT
                    摘要：Analysis of collisions is standardly included in the introductory physics course. In onedimension (1D), there do not seem to be any unusual issues: Typically, the initialvelocities of the two colliding objects are specified, and the problem is to find thefinal velocities. In 1D t...
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