Sci 8 Unit A Lesson 11 Moving Fluids, Pumps and Valves

A mechanical part that moves fluid through something is called a ------------------

• compressor

• pump

• valve

• hydraulic system

A system that uses a compressed fluid to do work is called a ------------------------

• circulatory system

• hydraulic system

• pneumatic system

• mechanical system

How does the potash mine get potash out of a solution of potash and water?

• Freeze it

• Evaporate the water

• React it with acids

• settle out the potash

A bicycle pump is an example of a --------------------------.

• valve

• piston

• pneumatic pump

• hydraulic system

What parts of fluid systems are also found in the human body?

• valves

• compressible and in compressible fluids

• pumps

• all of the above

How are hydraulic and pneumatic systems similar?

• Both use a gas

• Both use water

• Both use valves and pistons

• Both use a fluid to apply a force

How are hydraulic and pneumatic systems different?

• one is more powerful than the other

• one has more valves than the other

• one has a pump and the other does not

• one uses a gas, and the other uses a liquid

A ---------------------is used to filter the water in an aquarium.

• hydraulic system

• valve

• pump

• pneumatic system

In order for a gas to be put to work in a fluid system, it must be --------------------------------

• dry

• hot

• converted to a fluid

• compressed

A -------------------system is more reliable over a larger temperature range, hence it is considered when designing Canadian bus doors and ramps for use in Canadian winters.

• Hydraulic system

• Pneumatic system