A gear
A wheel that has teeth that fit into the teeth of another wheel is called a gear.
Such a wheel might be called a gear or a cog.
It could be a ratchet.
Simple machines
The teeth are usually provided on the pinion of the spur wheel, to drive the spur wheel.
The teeth are usually provided on the pinion of the spur wheel, to drive the spur wheel.
That is a 'cog' wheel.
The outer edges of the wheel. The wheel is what the tire is mounted onto.
Usually none.
dressing means making the wheel back to its original shape ( means bringing back its cutting edges )The dressing of a wheel in order to return the wheel to its original shape is called TRUING.The removal of swarf, dull grains, and bonding material from a grinding wheel is called DRESSING.Essentially, dressing sharpens the wheel.
A cog is a wheel with projecting teeth. These can turn either another cog or a chain.
Yes, or a chain, or a cable. And the "wheel" may have teeth - a sprocket wheel.