DC -- Bernoulli's equation

This equation is used when calculating ---

• Bernoulli's principle

• shear forces

• Young's modulus

• flow rate

What is the SI unit for flow rate?

• m/s

• m/s²

• m/s³

• m/s/s

If fluid is flowing in a pipe of decreasing width, what happens to the speed of the fluid?

• it increases

• it decreases

• it remains constant

When a river empties into one end of a reservoir, what happens to the speed of the water?

• it increases

• it decreases

• it remains constant

What is happening at V₂?

• speed has increased

• speed has decreased

• speed has changed direction

Tags

NGSS.HS-PS2-1

Why does this diagram only apply to liquids and not to gases since they are both fluids?

• gases are generally incompressible

• liquids are generally incompressible

• changes in flow rate affect the thermal energy of gases but not liquids

This is the general form of the continuity equation. What does n₁ and n₂ represent?

• the acceleration of the fluid

• the number of atoms or particles in a cross-sectional area

• the number of branches in each of the sections along the tube

What happens to the pressure between 2 moving vehicles, as shown in the picture?

• it rises

• it drops

• it remains constant

In Bernoulli's equation, what does lower case p represent?

• momentum of the fluid

• density of the fluid

• height above the reference point

• the fluid constant

Bernoulli’s equation is a form of the conservation of ------ principle.

• mass

• speed

• momentum

• energy

Tags

NGSS.HS-PS3-1

NGSS.HS-PS3-2