Firearm: Which definition best describes a firearm?

Firearm: Which definition best describes a firearm?

• A. A device designed to expel a projectile through a barrel by energy from an explosion
• B. A device used to emit audible alerts
• C. A tool for breaking into locks
• D. A weapon that shoots laser beams

Answer: (A)

A firearm is defined by the mechanism that actually launches a projectile: it expels a projectile through a barrel using the energy produced by an explosion, typically from a propellant burning and generating high-pressure gas. This creates the rapid acceleration of the bullet down the barrel and out toward the target. The other descriptions don’t fit that mechanism. An audible-alert device isn’t designed to propel anything. A tool for breaking into locks isn’t about projecting a projectile. A laser-emitting weapon uses light energy rather than an explosive-propulsion of a physical projectile through a barrel.

A firearm is defined by the mechanism that actually launches a projectile: it expels a projectile through a barrel using the energy produced by an explosion, typically from a propellant burning and generating high-pressure gas. This creates the rapid acceleration of the bullet down the barrel and out toward the target.

The other descriptions don’t fit that mechanism. An audible-alert device isn’t designed to propel anything. A tool for breaking into locks isn’t about projecting a projectile. A laser-emitting weapon uses light energy rather than an explosive-propulsion of a physical projectile through a barrel.