Product Description
Video and lesson investigations on the topic of aerofoils and balanced forces. Key concepts include:
- An aerofoil wing is shaped so that it is further from front to back on the top side than on the bottom.
- Because air that goes over the wing has to travel further than air that goes under the wing, it is at a lower pressure.
- The air pressure from underneath is stronger, so, because the two opposing forces are no longer ‘balanced’, the wing ‘lifts’.
- It is this phenomenon that gives aeroplanes their ‘lift’.
- Racing cars often use aerofoils but fit them upside-down. Racing cars need downward pressure to help them grip onto the racing track surface.
- The aerofoil principle is exactly the same, except upside-down.
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