This all depends on the country where you live. Some countries consider them firearms. In the USA they are not considered firearms but you must be 18 to purchase one. Other countries may not consider them firearms but they are heavily regulated.
Yes. Pellet guns are not classified as firearms.
No... but the government does consider them to be very dangerous.
Because they fire a projectile.
It depends on the country and location where you live. In several places they are considered firearms and require a license.
Pellet guns are safe so long as safety rules are followed, same as firearms. # Always consider the gun loaded. # Do not point the gun at anything you do not intend to shoot. # Keep your finger off the trigger until your sights are on target. Pellet guns are intended for target shooting and small game hunting. They are not intended to be fired at people. A pellet will cause severe damage to an unprotected eye and will break skin. Some higher-powered pellet guns have enough power to embed the pellet in muscle.
This will depend on the license laws in your jurisdiction- which you did give. MOST states in the US do not treat pellet guns as firearms. NJ treats all pellet guns as firearms. Great Britain and some members of the EU set limits on energy of the gun. Depends on where you are. In the case of a true firearm, speed does not matter- they are all firearms.
In general, BB guns are smoothbore, and the barrel is larger than the steel BB. Pellets guns are rifled, and fire a lead pellet that is a squeeze fit to the bore. This is MUCH more accurate than a BB. GOOD pellet guns are more accurate than firearms, within their usable range. I have one pellet rifle that will put pellet after pellet into the same hole in the target at 10 meters.
No. Pellet guns can inflict real injury, and can even kill. They should be used only where proper safety precautions are in place, as with more powerful firearms.
Any of the PCP class of pellet guns or rifles. These are high pressure pellet guns that are capable of shooting a 50cal pellet.
Because they both propel projectiles at velocities that can cause injury.
New Jersey law treats BB guns and pellet guns as firearms. To buy or possess a BB gun, you need to do the same things you would to buy a real gun. This is a link to the NJ State Code for firearms. Read the definition of firearm very carefully. http://www.state.nj.us/njsp/info/pdf/firearms/062408_title13ch54.pdf
Sporting goods stores or off the web. Do a search for Air guns or Pellet guns on the web.