Introducing advanced concepts for young students
Paulo de F Borges

TL;DR
This paper revisits Atwood's machine to introduce advanced physics concepts like relativity, equivalence principle, and coordinate transformations, providing educational insights and experimental validation for students learning modern physics ideas.
Contribution
It demonstrates how Atwood's machine can be used to teach relativity, equivalence principle, and coordinate transformations, linking classical experiments with modern physics concepts.
Findings
Coordinate transformations relate inertial and non-inertial frames.
The principle of equivalence is crucial for evaluating local gravity.
Atwood's machine appears lighter after movement begins, confirming experimental results.
Abstract
The compound Atwood's machine (Atm) problem is revisited in order to introduce young students on advanced concepts in Physics. Atm is an old-fashioned device. However, it allows us to speak about relativity of motion, principle of equivalence, inertial and non-inertial frames of reference, general covariance and invariance under coordinate transformations. Besides, it also provides experimental support for our theoretical models. We have started with coordinate transformations and inertial and non inertial reference frames followed by the principle of equivalence. The composed Atm was worked out in the following. We calculate the acceleration in the machine applying Newton's Laws to describe its dynamics in an inertial frame on the fixed pulley center and in a non-inertial one on the moving pulley center. Coordinate transformations mapping inertial frame solutions in non-inertial ones…
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Taxonomy
TopicsExperimental and Theoretical Physics Studies · Science Education and Pedagogy · Computational Physics and Python Applications
