Ballistics is the study of the movement of objects that are shot or thrown through the air, such as bullets fired from a gun.
The weapons are undergoing ballistics tests to see whether they were used in theshootings.
ballistics in British English
(bəˈlɪstɪks)
noun
(functioning as singular)
the study of the flight dynamics of projectiles, either through the interaction of the forces of propulsion, the aerodynamics of the projectile, atmospheric resistance, and gravity (exterior ballistics), or through these forces along with the means of propulsion, and the design of thepropelling weapon and projectile (interior ballistics)
ballistics in American English
(bəˈlɪstɪks)
noun
1.
the science dealing with the motion and impact of projectiles, such as bullets, rockets, bombs, etc.
2.
the study of the effects of firing on a firearm or bullet, cartridge, etc.