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Ballistics practice quiz. Which projectile has more energy, handgun or rifle? Rifle. How many moles of gas are produced when 1 Mole of gunpowder burns? 6 moles of gas. Name two ways to improve the accuracy of a projectile. Barrel length & rifling the barrel.
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How many moles of gas are produced when 1 Mole of gunpowder burns? • 6 moles of gas
Name two ways to improve the accuracy of a projectile. • Barrel length & rifling the barrel
Define ballistics • The science of a projectile in flight.
What do they call the spiral groves cut into the barrel of a gun? • Rifling
What factors influence the drag on a projectile? • Velocity & Spin
What civilization invented gunpowder? • Chinese
What is A • Casing
What is B • Projectile/Bullet
What is C • Powder
What is D • Primer
What type of casing is this? • Rimfire
At what range was this projectile fired from? • Point blank
At what range was this projectile fired from? • Close range
What type of casing is this? • Centerfire
Define Lands and grooves • Lands are the metal inside the barrel left after the spiral grooves are cut to produce the rifling.
Define Ballistics • the science of the travel of a projectile in flight.
Define silencer • A device that fits over the muzzle of the barrel to muffle the sound of a gunshot. Most work by baffling the escape of gases.
Define caliber • The diameter of the bore measured from land to land, usually expressed in hundredths of an inch (.22 cal) or in millimeters (9mm).
Define cartridge • called a "round". Made up of a case, primer, powder, and bullet.
Define bullet • The projectile. They are shaped or composed differently for a variety of purposes.
Define hammer • A metal rod or plate that typically drives a firing pin to strike the cartridge primer to detonate the powder.
Name the four improvements made to guns by the military. • Reliability of firing Accuracy of projectile Force of projectile Speed / Rate of firing
What are the two main ways the accuracy of a firearm was improved? • Barrel length Rifling