美国物理教师协会
期刊
会议
图书
作者:Richard Taillet
来源:[J].American Journal of Physics(IF 0.782), 2018, Vol.86 (12), pp.924-933AAPT
摘要:A “gravity tunnel” is the name given to a fictitious deep shaft drilled inside the Earthso that objects dropped from the surface of the Earth would free fall without evertouching the walls. It is well known that because of the rotation of the Earth, suchtunnels are not strai...
作者:J. R. Persson
来源:[J].American Journal of Physics(IF 0.782), 2018, Vol.86 (12), pp.887-892AAPT
摘要:In physics textbooks, the emphasis is normally placed on the physics. In order to give the subject a deeper dimension, the inclusion of history and persons involved in the development has been increasing. However, the actual historical development does not always follow a li...
作者:David L. Herrick
来源:[J].The Physics Teacher, 2018, Vol.56 (9), pp.584-585AAPT
摘要:A well-known conclusion from elementary ballistic trajectory analysis is that the horizontal range of a projectile is maximized for a launch angle of 45°. The derivation of this result assumes that the launch speed is the same for all possible launch angles, but this neglect...
作者:Ben Futoran
来源:[J].The Physics Teacher, 2018, Vol.56 (9), pp.650-651AAPT
摘要:This is essentially how I start my class each year. As educators we know that the primary way to ensure content retention is to connect the information to the students’ lives in a relevant way. Thankfully, as physics teachers, we teach the subject that explains nearly every ...
作者:Elizabeth A. Bernhardt , Chad M. Garrison , Nathan F. Rasmussen ...
来源:[J].American Journal of Physics(IF 0.782), 2018, Vol.86 (12), pp.943-952AAPT
摘要:This paper describes a simple and inexpensive apparatus for measuring the light-induced shape change of a material, which can be implemented in a high school or undergraduate laboratory. The key components of the apparatus are a laser pointer to actuate the material, a force sens...
作者:Mustafa Sahin Bülbül
来源:[J].The Physics Teacher, 2018, Vol.56 (9), pp.624-625AAPT
摘要:This article focuses on an illusion due to our perceptions regarding competing coordinate systems or frames. I share an interesting anecdote and then explain aspects of its origin, referencing other similar illusions in the literature. Although it is difficult to experience the p...
作者:Yohan Vianna
来源:[J].American Journal of Physics(IF 0.782), 2018, Vol.86 (12), pp.914-923AAPT
摘要:In the rapidly growing area of quantum information, the Deutsch algorithm is ubiquitous and, in most cases, the first one to be introduced to any student of this relatively new field of research. The reason for this historical relevance stems from the fact that, although extremel...
作者:S. Deser
来源:[J].American Journal of Physics(IF 0.782), 2018, Vol.86 (12), pp.885-886AAPT
摘要:Brief recollections of two giants of physics, their origins, similarities, and differences.
作者:James Perkins , Michael J. Ruiz
来源:[J].The Physics Teacher, 2018, Vol.56 (9), pp.622-623AAPT
摘要:Care must be taken representing waves traveling in opposite directions. Erroneous results can occur when combining waves with the popular convention where a wave traveling to the right is ψ R (x,t) = A sin ( kx – ωt ) and a left-traveling wave is ψ L...

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