Assuming this is an older car a knocking noise on turning could mean one of the drive shafts is worn. Other things to check - are the bolts tight on the front wheels, if a very high mileage it could be worn wheel bearings.
Might be worn drive shafts or loose wheel nut
anti roll bar
A single knocking noise when braking or turning can be caused by a faulty axle. The cost of replacement is usually around 1,000 dollars.
if its a knocking noise whilst turning or in really bad cases constant then one of the half shafts constant velocity joints is probably failing due to the rubber gattor
Could be the CV joint is dry or has failed.
your cv boot has torn and needs replacement
You probably need your bearings repacked
tie rods
Depends on where the noise is originating from, a suspension component, engine (top or bottom?), steering knocking when turning, going over bumps, etc. You need to provide more details before I can point you in the right direction.
knocking noise
You are hearing a whirring when accelerating first to fourth because you are accelerating too fast and the whirring noise results. If you accelerate normally then you won't hear the whirring sound.
mine doing the same when turning been to garage could be broke spring or strut top bearing .