How is Physics different from Chemistry?

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Discussion Overview

The discussion explores the differences between physics and chemistry, particularly in the context of transitioning from an AP chemistry class to an AP physics class. Participants share their perspectives on the nature of the subjects, their content, and the skills required for each discipline.

Discussion Character

  • Conceptual clarification
  • Debate/contested
  • Exploratory

Main Points Raised

  • Some participants suggest that the material in AP physics is almost entirely new compared to AP chemistry, with only some overlap in quantum theory and wave nature of matter.
  • One participant expresses a preference for physics due to its reliance on a few axioms and the emphasis on analysis and problem-solving rather than memorization.
  • Another participant notes that while there are similarities in the study of gases, the focus in chemistry is more on stoichiometry, whereas physics may cover broader principles.
  • A participant presents a hierarchy of sciences, suggesting that physics encompasses a wider range of phenomena, including everything that moves or uses energy, contrasting it with the more focused study of chemistry.
  • Some participants express a sentiment that chemistry involves more exceptions and complexities compared to the perceived clarity of physics.

Areas of Agreement / Disagreement

Participants express differing views on the nature of chemistry and physics, with some favoring the clarity of physics and others highlighting the complexities of chemistry. There is no consensus on the overall superiority of one subject over the other, and multiple perspectives remain present.

Contextual Notes

Participants' views are influenced by personal experiences and preferences, which may not reflect broader educational or scientific perspectives. The discussion does not resolve the complexities or nuances of either discipline.

Who May Find This Useful

Students considering a transition from chemistry to physics, educators looking for insights into student perceptions of the subjects, and individuals interested in the philosophical distinctions between different scientific disciplines.

lan418
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Say if a student were to go from an AP chemistry class to an AP physics class next year, what can he expect?
 
Physics news on Phys.org
Please help, I would like to make a solid decision before tomorrow.
 
Almost entirely new material. The only thing even remotely simliar will be the parts on quantum theory and wave nature of matter covered in AP Chem. That stuff is physics, but everything else is entirely different.
 
I always hated chemistry. There always seemed to be more exceptions than rules. "Carbon only bonds with 4 partners...except when it bonds with 5, like in these 134 instances..."

One of the things I always liked about physics is that the entire subject is developed from just a few axioms. You get Newton's three laws, and (with some math) you can find the motion of so many different systems.

I guess the big difference is that in physics you will have to do a lot less memorization, and a lot more analysis and problem solving.
 
Other than the quantum theory/wave nature that was previously mentioned, I guess stuff like properties of gases (ideal gas law & kinetics of gases) should be familiar. In chemistry I believe the main thing dealing with gases is the stoichiometry of elements/compounds.
 
Originally posted by Tom
I always hated chemistry. There always seemed to be more exceptions than rules.

We does what's we can wiff what da physicists gives us to work wiff...

Physics vs. chem? Detailed descriptions and analyses of simpler, or cleaner, systems; no hiding behind "insufficient information."
 
You may have heard different versions of this before:

Chemistry is the 'why' behind psychology...

Physics is the 'why' behind chemistry...

Mathematics is the 'why' behind physics...

Philosophy is the 'why' behind math...

Other heirarchies try to place physics as somewhere in between engineering and pure math.

I prefer to think of it this way:

Science literally means 'stuff that can be known.' As opposed to what, I wonder?

Gradually, we've carved off little chunks of 'science' and given them names:

botany: study of all plants
ornithology: study of all birds
neurology: study of the brain
chemistry: study of chemical interactions

Physics is, briefly, everything that's left!

So while AP Chemistry deals with 'the study of chemicals,' physics will deal with everything that moves, uses energy, produces light, reflects light, attracts or repels other things, or affects the temperature of its surroundings. This includes a comprehensive study of electrons, molecules, cellular membranes, mosquitoes, cows (typically of the spherical, frictionless variety), elephants, continents, planets, stars, and spiral arms of galaxies, among other things.

I hope you have a good instructor; if you do you'll fall in love with the subject.

P
 
Originally posted by Tom
I always hated chemistry. There always seemed to be more exceptions than rules. "Carbon only bonds with 4 partners...except when it bonds with 5, like in these 134 instances..."
Yeah ... the universe sucks, doesn't it? We should redesign it.
 

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