How is physics taught and learned. Teaching strategies, class examples and demonstrations; learning resources, career advice, etc. For explicit problems, use the 'homework' tag instead.

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What is the next step in math education after taking the last undergrad math course? [on hold]

Currently I successfully completed the 3rd semester of my B.Sc. in Physics. Since the upcoming summer semester is starting soon and I'm going to have some spare time I can spend, I want to expand and ...
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1answer
49 views

Can I become an engineer and a physicist? [on hold]

I want to study mechanical engineering. Would that give me enough knowledge to research in theoretical physics?
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85 views

Help with high school physics [duplicate]

I am studying high school physics and it seems i have memorize the equation and use it mechanically in doing question and memorize lots of physical phenomena.I know a lot of physical phenomena can be ...
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1answer
47 views

Is this crystal defect an example of dislocation or a vacancy

It looks to me that a regular hexagonal pattern formed by the Ga atoms is interrupted in the middle of the crystal. Is this a void (or vacancy...), dislocation or another type of defect? Plus what ...
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35 views

Searching for a good summer opportunity [closed]

Where's a good place in Europe that offers a summer research job for interested students in Theoretical physics? For example, there is CERN that gives undergraduate students the chance to enroll for ...
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43 views

Topic Suggestions - Kaehler-Einstein metrics in physics [closed]

I am hoping to get some topic suggestions for a presentation I have to give in a couple of weeks. The course the presentation is for is called Kahler-Einstein metrics. I would really like the ...
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1answer
50 views

Requirements prior to Quantum Mechanics [duplicate]

What are the requirements in physics and mathematics that somebody must have in order to start learning Quantum Mechanics by himself?
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76 views

Are standing waves in water exact sine waves?

In many physics demonstrations waves in water are used to illustrate principles of standing waves and wave propagation. After such demonstrations, classes tend to move on to basic problems ...
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47 views

Classical Mechanics Help [duplicate]

I'm an undergraduate student majoring in physics. I don't know why but classical mechanics is giving me a lot of problems and I can't seem to grasp the concepts at all. So far we've been doing ...
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36 views

What level of mathematics would I need to understand the physics of a black hole? [duplicate]

I recently went to go see Interstellar and was awed by the visualizations of the wormhole and the black hole Gargantua. I read that noted physicist Kip Thorne was a consulting producer on the film. I ...
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2answers
108 views

An attempt to understand Quantum mechanics [closed]

Can I learn quantum mechanics just by knowing basic calculus and algebra? I know basic differential calculus and integral calculus. I am willing to study to understand what quantum mechanics means. ...
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1answer
22 views

does postive pole be a magnet to -e so that it would stick to it? [closed]

I've been wondering in case -e electrons are attrcted to postive pole ?! Does this mean like it acts as a magnet and my question is if a beam of electrons is passing does it stops when it meets an ...
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49 views

As an older student, is it better to finish my degree or go straight into studying physics now? [closed]

I'm a 23 year old going through a very early mid-life crisis, and considering a career change to physics. I would be very greatful for any advice :) I'm currently studying medicine, but I've realized ...
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147 views

What concepts could I teach to children in a game about quantum-mechanics? [closed]

I think that games can also be used to teach things to young people or childs, different than for example a book and could be more "direct" than teaching them all the math background, I would like to ...
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1answer
113 views

How to remember the Electromagnetic Spectrum?

This may sound off-topic but I am in a severe need of remembering the following shown Electromagnetic Spectrum along with the frequencies and wavelengths. So far I have looked at several mnemonics but ...
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175 views

Particles that are distinguishable and indistiguishable at the same time [migrated]

Thinking about a question and my answer to it and another question I asked earlier. I've come up with the following problem: Consider two otherwise very similar marbles, a red one and a blue one. Let ...
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37 views

Supergravity prerequisites for branes in string theory [duplicate]

I have a one-semester background in string theory (bosonic string theory, the NSR string, conformal field theory), but I have not taken any full length courses on supersymmetry and supergravity. I'm ...
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1answer
38 views

Learning Undergrad Physics [duplicate]

I am an undergrad physics student who has finished the first year curriculum: very basic mechanics and thermal physics; basic linear algebra; basic multivariable calculus and differential equations; ...
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2answers
93 views

Recommendation on books with problems for general relativity?

I am reading Sean Carroll's book on GR and have read the first two chapters, which are on manifolds and differential geometry. However, there are only 12 problems for both chapters. In fact, there ...
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34 views

Gedankenexperiment to derive the Robertson uncertainty relation without confusing it with the obersver effect

In the last years there seemed to be much activity on the meaning Heisenberg's uncertainty relation. The main point of the discussion was Heisenbergs noise-disturbance-relation (see: ...
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55 views

explaining qubits to beginning CS students

&I have 15 minutes as a guest lecturer to explain the notion of quantum computing to CS students in a Theory of Computation class. There is a lot of information on the web, e.g., ...
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0answers
36 views

Web utility for viewing $x$-$t$, $v$-$t$, and $a$-$t$ graphs

I'm wondering if there exists any utility on the web which displays $x$-$t$, $v$-$t$, and $a$-$t$ graphs for, say, a number of well considered example animations. The utility should allow pausing, ...
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0answers
70 views

What's the best GR book for recreational study? [closed]

I currently have four books. Hartle Schutz Cheng Carroll (lecture notes) Which one is best for me to read easily? (especially, for foreigners) Or Do you guys can give good recommendations that ...
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2answers
101 views

Study material for quantum mechanics [duplicate]

I want to study quantum mechanics. But I don't know what and which topics of mathematics are required. I know a bit of differential calculus. But what else is needed to study a bit advanced quantum ...
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32 views

Intuitive model to show difference between photon energy and light intensity?

What would be a good (intuitive, easily comprehensible) model to explain the quantum nature of light insofar as there is a fundamental difference between intensity and photon energy? One example (not ...
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3answers
148 views

Prerequisites for classical mechanics by Susskind

So I am an undergraduate in Electrical Engineering. We had a course on Physics in our freshman year which is equivalent to Classical Mechanics I as taught in MIT. I am interested in studying advanced ...
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1answer
37 views

Any economical quantitative electrostatics experiments for the university level?

I'm seeking for some safe experiments for undergraduates in the electrostatics context. We have a Van-de-Graaff generator in our fundamental physics lab but this kind of devices are useful for ...
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121 views

Experiment to verify a spring constant

In my high school physics class, I had students do a Hooke's Law lab to measure an unknown spring constant. Once we compared everyone's data we came up with a class value for $k$ of 253 N/m. We then ...
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40 views

GRE subject exam advice [duplicate]

So, I would like to ask those of you who have had this experience for some advice. What book is best for GRE subject exam? I have noticed that some books online have mistakes, so I would like if you ...
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17 views

Recommendations for Complex variable calculus [Physics Oriented]

I'm looking for a good book Complex variable calculus that give a really good mathematical background for a physicist. I already know real-variable calculus and vector calculus and I'm also ...
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1answer
53 views

Advice on Major Selection [closed]

I need a bit of an advice in deciding my major. My university allows only one major (along with minors) and I'm having a little bit of trouble in deciding what to do. Here's the thing. I want to go ...
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1answer
127 views

What is a quantum field?

I'm just tasting a bit of QFT and want to get started. I got stuck right at the start: what is a quantum field, and how should I look at it? This question can be a follow up of the What is a field, ...
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4answers
94 views

Possibility of making an experiment in a classroom to simulate DNA diffraction

I am a TA in a structural chemistry class. The professor want me to show students how Watson and Crick determined the structure of DNA from X-ray diffraction results of DNA crystals. The professor ...
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131 views

How do you explain special relativity to a 3 year old child? [closed]

I've been on multiple threads that attempt to explain this celebrated theory, but I have come across some rather complex threads that is very good if you are a physicist, but no one even attempts to ...
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4answers
133 views

Why are we still teaching Newtonian physics if it's “false”? [duplicate]

Why are we teaching an outdated theory when the math in general relativity isn't that hard? I really don't see a reason why we should teach a highly oversimplified theory in our schools. For me, it's ...
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20 views

Learning Physics [duplicate]

What's the best way to start learning Physics from home? I haven't touched it since my high school course. I know of Coursera and youtube videos? Are there any other sources that anyone can recommend? ...
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1answer
62 views

What topics do I need to study electromagnetism on the quantum scale? [closed]

What topics do I need to study (in order) so that I can study electromagnetics on the quantum scale? What is the name of the discipline studying electromagnetism on the quantum scale? Do I need to ...
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4answers
321 views

Why do physics students find vectors so difficult to deal with? [closed]

When I teach introductory physics to undergraduates, I find that although the classes are frequently split into "algebra-based" and "calculus-based" sections, the most difficult concept for any of ...
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2answers
116 views

Physical examples where changing the order of limits yields wrong result [closed]

In mathematics it is generally not allowed to change order of limits. For example it is not always true for a sequence of functions $f_n$, that $\int_a^b \left(\sum_{n=0}^\infty f_n(x) \right) dx = ...
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1answer
55 views

Textbook for relativity: modern version of Bondi's Relativity and Common Sense?

I am looking for a textbook on relativity for school children. A background in simple vector based mechanics could be assumed. Primarily it needs to be readable at high school English reading level ...
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224 views

Simple real-life examples of Fermi's golden rule?

I want to teach my students some simple applications of Fermi's Golden Rule. Unfortunately, most examples I can think of are in scattering theory, which they have not learned yet. Are there any ...
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1answer
27 views

Torque on shaft

Consider a generator which supply power using a shaft to a turbine. The torque applied on shaft by generator is $T$. As the shaft has constant angular velocity the turbine should also be applying ...
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2answers
97 views

Introducing angular momentum for the first time to a class

What is the best way to introduce the notion of angular momentum to a class without making it appear an unnecessary and artificial construction?
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2answers
116 views

Are Mathematics the language of the universe? [closed]

I am a high school student and next year i am going to be a physics major, so this year i put all my effort on physics and mathematics, since it a great tool for physicists. But now i wonder, in ...
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73 views

What is the true fundamental 'stuff' of physics? [closed]

It seems to me that most if not all of the publications and the institutional education of physics 'jump in' and start describing detailed phenomena without spending too much time describing and ...
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1answer
132 views

What kind of math is used in QFT? [duplicate]

What branch(es) of math are used in Quantum Field Theory? Or the question, by way of analogy: Tensor Calculus is to General Relativity as What is to Quantum Field Theory?
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42 views

Is there a (cheap) optical resonance demonstration using visible light?

I'm looking for a impressive, inexpensive lecture demonstration of optical standing wave resonance. Preferably visible light. Can anyone suggest such a demo?
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0answers
42 views

Where can I find a structured presentation of the equations of physics? [duplicate]

I recently realized how odd it is that studying physics has never been able to hold my interest despite how interesting I find physics. I came to the conclusion that it is because I've always felt ...
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81 views

Using a role-play to teach ohm's law

An education research project: can a role-play be used to help understand Ohm's Law? I need to have this analogy checked for scientific validity. A group of 25 primary children will participate, with ...
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1answer
46 views

Prerequisites for Ptolemy's Almagest

I hope this is a valid question to ask on this website (since it's astronomy and not e.g. mechanics, I wasn't so sure). What prerequisites are needed for fully understanding Ptolemy's Almagest. Fully ...