What is the most needed, fundamental law of physics?

Question

for instance, with Coulomb's Law, the fact that opposite charges attract enables chemical bonds to be built, enabling production of amino acids, and letting life live on earth.

Answer 1

Try this one on your professor, The law states that for an object traveling in a straight line to reverse direction, it must come to a complete stop. therefore a fly traveling down a railroad track hits a train head on, then the Train must stop, for the same time the fly stops......Laws of physics are just that, tools to use to solve other problems, not proven facts..........########

Answer 2

Fundamental Law Of Physics

Answer 3

All nice try everyone BUT.........
The most fundamental word of the fundamental laws is:

1. Existence.

Existence exists the rest of the universe builds on this

2. Existence Changes

Change is the most basic definition of time.

Then the arguments start.
Personally I go with.

3. No thing comes from nothing.
4. No thing goes to nothing.
5. Nothing and zero do not exist.

Newton was incorrect with his first law.
"A thing at rest stays at rest until acted upon"
This is wrong because if anything in the Universe moves then everything in the universe moves.

6. Newton was very correct in his second law.
A thing in motion proceeds in a strait line unless acted upon.

7. Things act upon things by attracting or repelling

These are the basics of the universe and as a sub-set physics

Answer 4

Not an easy question but a very good point.

Basically Time (laws of motion and conservation of momentum), Mass (conservation of mass energy and laws of thermodynamics), Activity (law of gravity, light, speed, and electrostatic fields :) And modern interpretation (modern physics and physical laws).
So Yes ALL of them apply other wise the outcome of any object couldn't be accurate to todays understanding (and I believe it would be a major setback in Scientific Discovery).
These are the fundamental things which existence needs to exist. Without time, mass, and energy nothing could exist, and without understanding we would'nt be discussing this topic at this very moment :)

Hope this makes sense :)

Answer 5

there isn't really a most needed law of physics. without any one of them (except maybe Bernoulli principle) we wouldn't be alive anyways (without Newtons first law, things would move in chaotic patterns with no control. without his third law, there would be no heat transfer. without organization in causality, past particles would interact with future particles, forming an infinite mesh of particle interactions, meaning infinite heat transfer)

as mentioned by someone other than me, the laws of physics are honestly just theories. we draw conclusions based on observations. these become laws. sometimes we have to draw conclusions based on very few observations which have little credibility, and put it together with other laws and guesses to make theories. since we cannot truly observe our experiments on the atomic level, we can't actually call them laws. in the macroscopic world, we can surely call them laws, but they aren't truly.

anyways, I would say that the conservation laws are the ones that apply the best to the universe. matter, momentum, and energy cannot be created or destroyed, only converted (although they can be converted into each other [nuclear fusion])

again I'll say that no one law of physics is more important than any other

Answer 6

There are no fundamental laws of physics. The two most powerful physical theories, general relativity and quantum mechanics are incompatible and yield absurd answers when one attempts to apply them universally. Therefore, if there is a "most needed fundamental law", as physicists, we don't yet know what it is since there are no fundamental laws of physics.

Answer 7

All the fundamental laws are needed. If the charge or weight of a proton were even a little bit different, you wouldn't have a hydrogen nucleus. No hydrogen, no universe as we know it.

Answer 8

just like the law of God
every law applies
if one of the smallest law is violated it caused an effect
if small thing of these is equivalent also to big thing
force, momentum, velocity, acceleration, impulse, heat, mass, gravity, torque, moment, energy, interference, current, energy , ,etc.
all of them are interconnected more or less.
and very useful . . . . . and . . . dangerous

Answer 9

Noether's theorem.
By the way; this all encompassing theorem was discovered by the amazing and creative woman - Emmy Noether.

Answer 10

theres no such thing as gravity Chuck Norris just keeps us all down