2. Bernoulli’s Principle חוק ברנולי

3. Bernoulli’s Principle: מדען שוויצרי הידוע בעיקר בזכות עבודתו הקושרת בין הלחץ בזורם ומהירותו

4. Bernoulli’s Principle Pressure in a moving stream exerts less pressure than the air surrounding the moving stream Quick stream = low air pressure Slow stream = High air pressure

5. Bernoulli & Flight Bernoulli’sBernoulli’s Principle is what allows birds and planes to fly. TheThe secret behind flight is ‘under the wings.’

6. The air on top of the wing must travel a longerThe air on top of the wing must travel a longer distance than the air below the wing. But, air on both sides must reach the end of the wing at the same time. Therefore, the air on top of the wing traveling faster = less air pressure. Creates Lift AIR

7. Below is a NASA illustration of what surface pressure is exerted on what surface areas of the wing.

8. כוח העילוי כוח הכובד כוח הדחף כוח החיכוך