1. Flight Lesson 5 – Bernoulli’s Principle

2. Flight Book Please go to page 16 & 17 in your book and read quietly to yourself.

3. Lesson 5 – Bernoulli’s Principle Background Information __________ is a strong force that pulls everything down toward the Earth. But it can be overcome by an upward force called ____. Lift is produced when the air pressure on the _________ surface of an object (a wing of plane) is ________ than the top surface. For an object to climb into the air the _______ force must be GREATER than ________. Daniel Bernoulli was a mathematician from the country of _______________. In the ______’s he discovered…. “If the _________ of a moving fluid increases, then the _______ it exerts decreases! OR FAST-MOVING = LOW PRESSURE and SLOW-MOVING = HIGH PRESSURE

4. Lesson 5 – Bernoulli’s Principle Background Information Gravity is a strong force that pulls everything down toward the Earth. But it can be overcome by an upward force called lift. Lift is produced when the air pressure on the _________ surface of an object (a wing of plane) is ________ than the top surface. For an object to climb into the air the _______ force must be GREATER than ________. Daniel Bernoulli was a mathematician from the country of _______________. In the ______’s he discovered…. “If the _________ of a moving fluid increases, then the _______ it exerts decreases! OR FAST-MOVING = LOW PRESSURE and SLOW-MOVING = HIGH PRESSURE

5. Lesson 5 – Bernoulli’s Principle Background Information Gravity is a strong force that pulls everything down toward the Earth. But it can be overcome by an upward force called lift. Lift is produced when the air pressure on the bottom surface of an object (a wing of plane) is higher than the top surface. For an object to climb into the air the _______ force must be GREATER than ________. Daniel Bernoulli was a mathematician from the country of _______________. In the ______’s he discovered…. “If the _________ of a moving fluid increases, then the _______ it exerts decreases! OR FAST-MOVING = LOW PRESSURE and SLOW-MOVING = HIGH PRESSURE

6. Lesson 5 – Bernoulli’s Principle Background Information Gravity is a strong force that pulls everything down toward the Earth. But it can be overcome by an upward force called lift. Lift is produced when the air pressure on the bottom surface of an object (a wing of plane) is higher than the top surface. For an object to climb into the air the lift force must be GREATER than gravity. Daniel Bernoulli was a mathematician from the country of _______________. In the ______’s he discovered…. “If the _________ of a moving fluid increases, then the _______ it exerts decreases! OR FAST-MOVING = LOW PRESSURE and SLOW-MOVING = HIGH PRESSURE

7. Lesson 5 – Bernoulli’s Principle Background Information Gravity is a strong force that pulls everything down toward the Earth. But it can be overcome by an upward force called lift. Lift is produced when the air pressure on the bottom surface of an object (a wing of plane) is higher than the top surface. For an object to climb into the air the lift force must be GREATER than gravity. Daniel Bernoulli was a mathematician from the country of Switzerland. In the 1700 ’s he discovered…. “If the _________ of a moving fluid increases, then the _______ it exerts decreases! OR FAST-MOVING = LOW PRESSURE and SLOW-MOVING = HIGH PRESSURE

8. Lesson 5 – Bernoulli’s Principle Background Information Gravity is a strong force that pulls everything down toward the Earth. But it can be overcome by an upward force called lift. Lift is produced when the air pressure on the bottom surface of an object (a wing of plane) is higher than the top surface. For an object to climb into the air the lift force must be GREATER than gravity. Daniel Bernoulli was a mathematician from the country of Switzerland. In the 1700 ’s he discovered…. “If the speed of a moving fluid increases, then the pressure it exerts decreases! OR FAST-MOVING = LOW PRESSURE and SLOW-MOVING = HIGH PRESSURE

9. Bernoulli’s Principle Fast moving air passing by an object exerts less pressure than slow moving or “still” air passing by an object.

10. Paper Strip Experiment Make a prediction: o I think the paper strip will __________________________. What happened to the paper strip as you blew over the top? o _________________________________________________________________. What do you think caused the strip to behave the way it did? o ________________________________________________________________. Draw a diagram of the experiment showing different speeds and pressures.

11. Bernoulli’s Principle Think about the shower curtain…. https://www.youtube.com/watch?v=zeOXzXi1wlY