From Longman Dictionary of Contemporary Englishballisticsbal‧lis‧tics /bəˈlɪstɪks/ noun [uncountable] HPPMWthe scientific study of the movement of objects that are thrown or fired through the air, such as bullets shot from a gunGRAMMAR: Singular or plural verb?Ballistics is followed by a singular verb: Ballistics is used to understand where and how a gun was fired.
Examples from the Corpus
ballistics• Arthur left Fred to it and lay on his back in his own bedroom, reading a book about ballistics.• Nuln is the home of the Imperial Gunnery School, where cannons are cast and artillerymen learn the arts of ballistics. 