Understanding Pressure and Depth

How does pressure change with increasing depth in a fluid?

• Pressure decreases with increasing depth in a fluid.

• Pressure increases with increasing depth in a fluid.

• Pressure remains constant regardless of depth in a fluid.

• Pressure fluctuates randomly with depth in a fluid.

Explain Pascal's principle in your own words.

• Pascal's principle states that fluids cannot be compressed.

• Pascal's principle explains that pressure applied to a fluid in a closed system is transmitted equally in all directions.

• Pascal's principle indicates that pressure decreases with depth in a fluid.

• Pascal's principle describes how fluids flow faster in narrower spaces.

What is an example of an application of Pascal's principle?

• Pneumatic brake system

• Electric motor

• Hydraulic lift

• Water wheel

What instrument is commonly used to measure atmospheric pressure?

• Thermometer

• Anemometer

• Hygrometer

• Barometer

How does a barometer work to measure pressure?

• A barometer measures atmospheric pressure using a column of mercury or an aneroid cell.

• A barometer measures temperature using a glass tube.

• A barometer measures humidity with a rotating dial.

• A barometer calculates wind speed using a digital display.

What is the difference between absolute pressure and gauge pressure?

• Absolute pressure = Gauge pressure + Atmospheric pressure.

• Absolute pressure is measured in psi only.

• Absolute pressure is always higher than gauge pressure.

• Gauge pressure is the total pressure exerted by a fluid.

How does the concept of buoyancy relate to pressure in fluids?

• Buoyancy only occurs in gases, not in liquids.

• Pressure in fluids has no effect on the movement of objects.

• Buoyancy is solely determined by the weight of the fluid displaced.

• Buoyancy is related to pressure differences in fluids, where higher pressure at greater depths creates an upward force on submerged objects.