Which type of turbulence momentarily causes slight, erratic changes in altitude and/or attitude?

Light turbulence is characterized by momentary, erratic changes in altitude and/or attitude but does not cause major disturbances to the aircraft. During light turbulence, aircraft may experience slight, infrequent bumps or jolts; however, these changes in position are generally manageable and do not require significant pilot intervention. The passengers may feel a mild strain against their seatbelts, but the shaking is mild enough that it does not pose a safety risk.

Understanding this level of turbulence is crucial for pilots and air traffic controllers, as it helps in preparing for incoming weather conditions and communicating expected turbulence to passengers. In contrast, moderate, severe, and extreme turbulence are associated with more pronounced and potentially dangerous movements of the aircraft, which can lead to more serious operational challenges.