When a Frisbee is flying horizontally through the air, the speed of the air flowing over the Frisbee's top is
A) higher than the speed of the air beneath it and the pressure on top of the Frisbee is greater than the pressure beneath it.
B) lower than the speed of the air beneath it and the pressure on top of the Frisbee is less than the pressure beneath it.
C) lower than the speed of the air beneath it and the pressure on top of the Frisbee is greater than the pressure beneath it.
D) higher than the speed of the air beneath it and the pressure on top of the Frisbee is less than the pressure beneath it.

Question

Quizplus · Accepted Answer

According to Bernoulli's principle, when the speed of a fluid (in this case, air) increases, its pressure decreases. Therefore, if the speed of the air flowing over the top of the Frisbee is higher, the pressure on top of the Frisbee will be less than the pressure beneath it, which helps to generate lift.

When a Frisbee Is Flying Horizontally Through the Air, the Speed