Science: Valves and the Power of Fluids

What kind of system—hydraulic or pneumatic—is the human circulatory system?

Valves are devices that control the movement of a fluid through a hollow tube or pipe.

• True

• Falce

Internal Combustion Engine: Image A represents the:

• exhaust

• power

• compression

• intake

Internal Combustion Engine: Image B represents the:

• exhaust

• power

• compression

• intake

Internal Combustion Engine: Image D represents the:

• exhaust

• power

• compression

• intake

Rams are similar to syringes because they are composed of a ______ inside a cylinder.

Explain what is happening with the fluid inside this hydraulic system. Which way are the pistons moving? Why?

What is an advantage of using pneumatics instead of hydraulics?