Why do helicopters hover without wings?
Show answer & explanation
Answer: Spinning rotors push air down
Magnetic fields lift the craft — Wrong. Helicopters don't use magnetic fields. They generate lift mechanically by pushing air downward with spinning rotor blades.
Light materials float in air — Wrong. Materials don't float in air regardless of weight. Helicopters create lift by actively pushing air downward with rotor blades.
Spinning rotors push air down ✓ — Correct! Helicopter rotor blades are like spinning wings. As they rotate, they push large volumes of air downward. By Newton's third law, this creates an equal upward force (lift) that allows hovering. Changing blade angle controls whether the helicopter rises, hovers, or descends.
Go deeper: Newton's third law
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