Because they are based more on theory than numbers and facts
You can't be good a everything.
Because math, physics, chemistry and computer science are not the same things. Just because you're good at using maths doesn't necessarily mean you're not good at applying them. Theoretical and applied mathematics are widely considered very different fields.
Given these two characteristics, there are four possibilities: Some people are good at math and have bad writing skills. Some people are good at math and have good writing skills. Some people are bad at math and have good writing skills. Some people are bad at math and have bad writing skills. Leaving aside what it means to be "good" or "bad" at these disciplines, it is likely that these groups of people have varying amounts of genetic predisposition for success at these aptitudes and their environments provided varying amounts of support or resistance to help them fulfill their levels of achievement. If you're suggesting a causal relationship, that to be "good" at one necessarily implies being "bad" at another, I don't think such generalizations are useful.
Because of the way the brain works, some people are good at both, and some are good at one but not the other
Must be conceptual physics as physics has one language and that language is mathematics. I have never known a physicists that was not good at math.
Because they are based more on theory than numbers and facts
Yes. It is equally true that some people won't.
Yes, it is true. It is also true that some peope who are excellent at math will have a hard time with tieing their shoes and with pole-vaulting. Generally, however, in the majority of cases, most people who are excellent at math will also be quite good with Physics and Chemistry, if they're interested in it and willing to put forth a modicum of effort.
Generally the opposite is true as chemistry and physics are heavily mathematically based
Chemistry, Physics and Engineering are not made up of just mathematics, there are a lot of understanding of the physics and chemistry concepts to do well in those courses too. Most people who are bad at math will have difficulty solving physics and chemistry problems (although they may understand the concepts). though they might be quite good at certain kinds of chemistry (synthetic organic chemistry, for example, which is more about memorization and less about mathematical skills). However, being good at math does not automatically mean you'll also be good at chemistry."Good at math" is also a somewhat vague term. You can be a whiz at simple arithmetic and still be horrible at analytical-type mathematics ("word problems") which are more similar to the kind of understanding of mathematics that's required in the physical sciences. So if someone doesn't have an understanding of the concepts, then they would have difficulty setting up the math equations (which will model the actual physics, chemistry etc.)
Not at at all, both fields are mathematics heavy.
You can't be good a everything.
physics attempts (and does a good job) to describe events observed in nature. Physics uses mathematics for some of the explanation. Gravitational attraction described by Newton used a math equation.
Because math, physics, chemistry and computer science are not the same things. Just because you're good at using maths doesn't necessarily mean you're not good at applying them. Theoretical and applied mathematics are widely considered very different fields.
That's hard to believe, unless it's conceptual science, then people need to be good at math to learn science
either they are stupid or maybe its physiological...