Canadian Firearms Safety Course (CFSC) Practice Exam

Air resistance, also known as drag, plays a significant role in the way a bullet travels through the air. As a bullet is fired, it encounters air molecules that create friction against its surface. This friction opposes the motion of the bullet, causing it to lose speed over distance. The effect is particularly pronounced as the bullet moves through the atmosphere, which is denser at lower altitudes.

The design of most bullets—including their shape and mass—also contributes to how effectively they can overcome air resistance. However, despite these design considerations, air resistance consistently acts as a force that slows the bullet's flight. Consequently, understanding the impact of air resistance is critical for both shooters and those studying ballistics, as it affects trajectory and range.