your cv boot has torn and needs replacement
many many things, Loose lug nuts which lets wheel make knocking noise. Engine will make a knocking noise if it is really low on oil. Some timing belts make a knocking, slapping noise just before they break.These are just a few examples . Have someone ride in car with you as you duplcate the noise and see if they can determine which part of the vehicle it is coming from.
Typically, a knocking noise when to use your brakes in the car is caused by your brakes wearing down. This means you need to get them checked out and repaired.
you may have a rod knocking and you need to take it to a shop asap
Yes Yes
The knocking that you are describing reminds me of a stuck universal joint. A bent axle usually wears tires out very fast more than making noise.
kinetic (movement) energy is converted to sound energy due to the collision.
warped rotors , brake
Its hard to say... do u know where the noise is coming from?
there could be excessive clearance in the rear differential case if this is a rear wheel drive vehicle.
it could be your valves or your engine
That would be the connecting rod bearings and the crankshaft bearings saying goodbye. You have succeeded in destroying the engine.