Table 2: Errors in the Projectile Motion Experiment Error Description Type of Error-RANDOM or SYSTEMIC Precision error of the meter stick Systemic error Precision error of the timer app Systemic error Friction is ignored in the experiment Systemic Air resistance is ignored in the experiment systemic Rolling motion of the marble is ignored Initial position of the marble is determined by eye Marble doesn't smoothly slide off the ramp or move smoothly across the table Difficult to identify the initial position of projectile in the x-direction Eyeballing the landing position of the projectile The meter stick needs to be aligned along the horizontal axis to get a true measurement of horizontal distance. It may have been misaligned (not shown in video) Air currents may affect the trajectory of the marble while in projectile motion