General

You have to specify 2 objects that are applying the force.
Newton's third law requires Object A to apply a force on Object B. Object B applies the same force on object A at the same magnitude but in the opposite direction.

You push an object which causes friction to then oppose it's motion. [b]Static friction puts strain on the object trying to move, the object ALSO puts equal amount of strain on the cause of the static friction[/b] . Then the object moves past the friction which creates a new amount of friction in the new area OR the friction is too much and cancels out the push leaving the friction equal to your push.

The reaction force of friction is whatever force is being applied in the opposite direction..? Static friction or not there is still an opposite

Any kind of force besides friction would be opposite to friction in the right scenarios. Don't really get what your trying to say tho =0

[quote=iSpitOnLuk]Being good at Physics doesn't automatically mean you're intelligent. I know a lot of people who are good at a specific area of science but they horribly suck at everything other subject.[/quote]

Honestly, I initially put the last part out of lack of stuff to say lol.

But I enjoy a good intellectual discussion.
Those people that you say are good at science but suck at everything else, would you describe them as dumb?
Even if they are terrible at language or something else, I would still say they are smart.

Instead of thinking about trivial matters such as this, let's think about how one can say correspondence principle applies to infinite potential wells even though the limit as h goes to zero does not give a classical solution.

Imagine a piece of wood running over the floor to the right: -->
Friction is the floor exerting a force on the wood to the left: <--
The reaction force is the block exerting a force on the floor to the right.

[quote=ClementZ]Friction is a reaction force.
The...action force would be any force resulting in motion (e.g. applied force, gravity, etc.)[/quote]

A common misconception, and it's not quite right. The reaction force of gravity acting from A on B is gravity action from B on A. The reaction force of A acting on B to make motion is the force of B acting on A.

[quote=YugimonzFTW]Because being good in Physics proves your intelligence.[/quote]

Einstein was good at Physics, but honestly pretty bad at everything else. I think you'd be the start of some controversy if you said he was unintelligent.

Friction is a reaction force.
The...action force would be any force resulting in motion (e.g. applied force, gravity, etc.)

Normal force, dun dun dun.
Don't really know, taking physics honors right now in HS. TERRIBLE. >.<

There needs to be two objects for Newton's Third Law to apply.

That's like saying: What's the reaction force of gravity if there's nothing for gravity to act on?

Actually, I guess I misinterpreted. The reaction force would be whatever force is being applied to the static friction. It's kinda a backwards way of wording a friction problem.

@YugimonzFTW

What ever floats TS's boat