Matching Pairs Aerodynamics in sports - carsOnline version Links words to their image or definition by Cléa Claret 1 2 is caused by the “hole” left in the air as a vehicle passes through it. 3 Frontal pressure 4 5 Turbulence 6 Scoops, or positive pressure intakes Rear vacuum is caused by the air attempting to flow around the front of the vehicle. are useful in providing a mild “Ram Air” or “Supercharging” effect to a combustion engine. Wing without endplates Wing with endplates