Question

when a shotgun fires, a sequence of events takes place. after the hunter pulls the trigger, what is the next event in the sequence? a expanding gas drives the shot through the barrel. b the firing pin strikes the primer. c a spark ignites the gunpowder. d gunpowder burns and converts to a gas.

Explanation:

When the hunter pulls the trigger, the firing pin (a mechanical part) strikes the primer (a small explosive - containing part at the base of the shotgun shell). This is the immediate mechanical action after trigger - pull. The primer then creates a spark (which would be the next step after the firing pin strike) to ignite the gunpowder. The burning gunpowder converts to gas (due to the exothermic reaction of combustion), and then the expanding gas drives the shot through the barrel.

Answer:

B. The firing pin strikes the primer.