22.3. Applications of Bernoulli's Equations

Try these first

1. 1.

   What is Bernoulli's equation primarily used for?

   Hint

   Think about the relationship between pressure and fluid speed.

2. 2.

   Name one application of Bernoulli's equations in aviation.

   Hint

   What helps an airplane rise in the air?

3. 3.

   What happens to the pressure of a fluid when its velocity increases?

   • Increases
   • Decreases
   • Remains the same

   Hint

   Think about aircraft wings!

4. 4.

   Is Bernoulli's equation useful in medical fields?

   • True
   • False

   Hint

   Consider its application in blood velocity!

5. 5.

   A variable-area pipe reduces its diameter from 10 cm to 5 cm. If the fluid speed at 10 cm is 2 m/s, what is the new speed at 5 cm?

   Hint

   Use the principle that mass flow rate must remain constant.

6. 6.

   In a horizontal pipe, the velocity of water increases from 3 m/s to 9 m/s between two sections. How does this affect the pressure difference? Assume density of water is 1000 kg/m^3.

   Hint

   Consider the change in kinetic energy as fluid velocity increases.