Larrge at the front and small at the rear
It depends on whether you are talking about the front sprocket (the one at the pedals, called a chainring) or the sprocket at the rear derailleur. The lowest gear at the front is the smallest sprocket/chainring. The lowest gear at the rear is the largest sprocket. So if you combine the smallest sprocket at the front with the largest sprocket in the rear you have the lowest gear available on your bike.
Even slower
The sprocket on the nose of the crankshaft that drives the cam sprocket.
The function of a cassette sprocket in a bicycle's gear system is to provide different gear ratios, allowing the rider to adjust the resistance and speed when pedaling.
High gear on a bike refers to a gear setting that requires more effort to pedal but allows for higher speeds. When in high gear, the bike's chain is on a larger sprocket in the front and a smaller sprocket in the back, making each pedal stroke cover more distance. This can increase speed but also requires more energy from the cyclist. High gear can be more efficient for maintaining a fast pace on flat terrain or downhill, but may be more challenging to pedal uphill or at a slower pace.
Cam gears are also refered to as sprockets (just another name). A chain or belt that is driven by a crankshaft gear/sprocket turns the cam gear(s)/sprocket(s). In certain high performance applications there is no chain, there are just gears meshing but that is probably not relevant to your question.
Chain is on the smallest sprocket on the crank and on the largest sprocket on the rear wheel
To remove a sprocket using a sprocket removal tool, first, place the tool over the sprocket and ensure it is securely in place. Then, use a wrench to turn the tool in a counterclockwise direction to loosen and remove the sprocket. Be sure to follow the manufacturer's instructions for the specific tool you are using to avoid damaging the sprocket or tool.
Depends on if you're looking at the wheel or if you're looking at the pedals. 1st gear, the one where pedalling is easiest, is the biggest sprocket at the rear, and the smallest chainwheel at the front.
When using a bike in high gear, you will have higher performance and speed, but lower efficiency. In low gear, you will have lower performance and speed, but higher efficiency.
On a bike there's one(or more) front sprocket(s) by the pedals connected by a chain to one(or more) rear sprocket(s) by the rear wheel. As the wheel isn't driven directly by the pedals, and there's usually a difference in size between the front & rear sprocket this constitutes a gear.
If you move from a big chainwheel to a smaller chainwheel by the pedals, pushing the pedals will get easier. If you move from a big sprocket to a smaller sprocket by the rear wheel, pushing the pedals will get heavier.