Forces in Fluids

Any material that can flow and take the shape of its container is called a _________.

• gas

• liquid

• fluid

• water

The SI unit for pressure is the ____.

• Pascal

• Newton

• pressure

• pound

Which of the following affects the shape of a bubble?

• amount of air

• volume of bubble

• air pressure

• amount of soap

Where is atmospheric pressure the lowest?

• Mount Everest's peak (8,848m)

• sea level

• in an airplane at 12,000m

• 150,000m above sea level

What happens to pressure as you go deeper in a fluid?

• increases

• decreases

• stays the same

• not affected

What happens to the fluids in your body as atmospheric pressure changes?

• They adjust to equal pressure

• They maintain low pressure

• They maintain high pressure

• They don't react to atmospheric pressure changes

Which of the following does not affect the total pressure of a diver?

• water depth

• water pressure

• atmospheric pressure

• total amount of fluid present

How much more dense is water than air?

• 10 times

• 100 times

• 1,000 times

• 8,000 times

What is the amount of matter in a given volume called?

• pressure

• fluid

• density

• depth

What happens when the muscle in your chest moves when you exhale?

• The space in your chest increases

• The space in your chest decreases

• The air is pushed into your lungs

• The pressure in your lungs decreases