A student sets up an apparatus to investigate the relationship between the speed of a fluid and its pressure.
The student passes a constant flow of water through the pipe.
State the equation linking pressure difference, height, density, and ggg.
Explain how the diagram shows that the pressure at section E is lower than the pressure at section D.
A constant volume of water flows through the pipe each second. Explain how the speed of water at section E differs from the speed of water at section D.
In another demonstration, the student holds two vertical strips of paper parallel to each other, a short distance apart. The student then blows air between the two strips using a straw.
Explain why the strips of paper move towards each other when air is blown between them. Refer to air speed and pressure in your answer.
