Pressure in Fluids

What is the SI unit use for hydraulic pressure?

• Kg/m³

• Pa

• kg m^-3

• N m²

Fluid pressure is directed

• in all directions.
• only upward.
• only downward.
• always sideways.

When you increase your depth under water, the water pressure on your body

• increases

• decreases

• stays the same

What decreases as you go up in the atmosphere?

• Altitude
• Atmosphere
• Meteors
• Air Pressure

Materials that can flow and take the shape of their containers include…

• Both gases & liquids

• Liquids

• Gases

• Neither gases nor liquid

Fluid pressure increases as depth increases.

• True

• False

These are Pascal's Vases. What would happen if you poured water into the right-hand tube?

• The water would fill up the right hand tube before flowing to the others and filling them up.

• The thinner tubes would fill up more than the thicker tubes

• The thicker tubes would fill up further than the thinner tubes

• The height of the water would be the same in all the tubes.

The reason gases can be compressed is because:

• The particles are very close together.

• The particles are merely vibrating.

• The particles are unable to move.

• The particles are very far apart.

Which of the following would increase the pressure on a system?

• Increase the Temperature
• Pump in more gas
• Decrease the volume
• All of these

How do you Calculate Pressure

• Force(N)/Area(m²)

• Force(kg)/Area(mi²)

• Area(m²)/Force(N)