Math knowledge required to fully understand physics

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Discussion Overview

The discussion revolves around the mathematical knowledge required to understand physics concepts, particularly at the precollegiate level. Participants share their perspectives on which areas of mathematics are essential for grasping physics topics, especially in the context of studying a book like "Physics for Scientists and Engineers."

Discussion Character

  • Exploratory
  • Debate/contested
  • Mathematical reasoning

Main Points Raised

  • One participant expresses a desire to understand physics better and seeks advice on which math books to study, indicating a need for knowledge in Algebra, Geometry, Trigonometry, and Calculus.
  • Another participant suggests that a deeper understanding of physics might require knowledge of advanced topics such as group theory, tensor calculus, and complex analysis, questioning the phrasing of the original question.
  • Several participants emphasize the importance of a solid understanding of algebra for solving physics problems at the precollegiate level, with some recommending that calculus should be studied as soon as the individual is comfortable with algebra and trigonometry.
  • A participant notes that the expectations for understanding physics may vary by educational system, highlighting that some students struggle with rearranging equations, which is a common task in physics.

Areas of Agreement / Disagreement

Participants generally agree that a strong foundation in algebra is necessary for understanding physics at the precollegiate level. However, there are differing opinions on the necessity and timing of learning calculus and other advanced mathematical topics, indicating that multiple competing views remain.

Contextual Notes

Some participants mention that educational expectations may differ by country or region, which could affect the perceived requirements for understanding physics concepts.

donaldtran
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Hello everyone!
I am a high school student who is in grade 10. I've developed a passion in Math and Physics, and I intend to be an engineer in the future. However, I don't feel satisfied with the Physics knowledge I've picked up from school, so I seek the book Physics for Scientists and Engineers. Nonetheless, I find that in order to study that book, I must have a considerable amount of Maths such as Calculus, which at the moment I do not learn at school. And the Maths knowledge I've learned at school is not difficult at all.
Therefore, I'd like to seek some advice on which Maths book I need to study in order to FULLY understand concepts of Physics. I realize that I need to brush upon Algebra, Geometry and Trigonometry and to learn Calculus.
I identify my level now as Pre-Intermediate.

Thank you so much !
P/S: I'm an Asian student
 
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to fully understand physics you need to know group theory, tensor calculus, complex analysis, partial differential equations and programming.

did you mean to phrase your question a different way? maybe "knowing introductory physics adequately" would be a better way to put it.
 
I mean to understand physics at precollegiate level
 
Calculus would be the natural thing to study at this point.

Have you heard about complex numbers? You could study that too. And maybe some probability theory.
 
donaldtran said:
I mean to understand physics at precollegiate level

A book with a title like "Physics for Scientists and Engineers" is generally considered to be at first-year college or university level in the US. Maybe it's different in your country.
 
donaldtran said:
I mean to understand physics at precollegiate level

To be able to solve physics problems at that level, you need a solid understanding of algebra. As you further your education you'll need calculus and beyond, but for now I advise you to focus on algebra.
 
lisab said:
To be able to solve physics problems at that level, you need a solid understanding of algebra. As you further your education you'll need calculus and beyond, but for now I advise you to focus on algebra.

+1

But I do advise the OP to start calculus as soon as he's comfortable with algebra, trig and geometry. Physics is much nicer if you know calculus. And the faster you know calculus, the more options you will have.
 
Things may be different in other countries, and even in other parts of the US, but many of my beginning college students (even not-so-beginning ones) have had trouble with things like "solve ##L = L_0 / \sqrt{1 - v^2/c^2}## for v". Give them something like "##5.00 = 2.00 / \sqrt{1 - 0.75v^2}## and they can do it, maybe with some effort. But I've had students ask me about the first one, "How do I do that? There aren't any numbers!" I have to explain that I want them to re-arrange the equation to get v all by itself on one side. They don't do that sort of thing a lot in algebra classes in at least some high schools, apparently. But we do it all the time in physics, even when we know the numbers!
 

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