Untitled Quiz

What distinguishes fluids from solids?

What is the primary composition of mammalian bodies?

How does the volume of gases compare to that of solids and liquids when subjected to external pressure?

Under which pressure condition do solids and liquids have a fixed volume?

What property do fluids possess that allows them to flow?

What is the main characteristic of fluids compared to solids or liquids?

What determines the volume of solids, liquids, or gases?

What occurs to the volume of a solid or liquid when external pressure changes?

What is the SI unit of pressure named after the French scientist Blaise Pascal?

Which forces must be exerted by the fluid at rest?

What is the formula for calculating the density of a fluid?

What is the unit of density in the SI system?

How does the density of liquids compare to gases in terms of pressure variation?

What is the relative density of a substance?

What does a positive scalar quantity refer to in this context?

What is the density of water at 4°C?

What is the average pressure Pav defined as?

According to Pascal's law, what happens to pressure in a fluid at rest?

What is the unit of pressure that is equivalent to N m-2?

How does pressure vary with depth h in a fluid?

What remains constant in the steady flow of an incompressible fluid through a pipe of non-uniform cross-section?

What does the principle of weight loss when submerged in a fluid state?

In the context of hydraulic lifts, what does the relationship A1L1 = A2L2 represent?

What is assumed about water in the context of this principle?

If the radius of the small piston in a hydraulic lift is 5.0 cm, what is the radius of the larger piston?

What force is applied on the small piston to lift a car weighing 1350 kg?

What is the gravitational acceleration used in the calculations?

What pressure is ignored in the calculations of the hydraulic lift?

What is the mass of the car to be lifted by the hydraulic lift?

What is the formula for excess pressure inside a bubble?

What does the variable $r$ represent in the context of a bubble?

If the surface tension of water is $7.30 × 10^{-2} N/m$, how is it used in calculating excess pressure?

What is the excess pressure in the bubble as calculated in the example?

What basic property of a fluid is highlighted in the summary?

What happens when the lower end of a capillary tube is dipped in water?

In the given context, why is the pressure outside the bubble important?

When calculating the pressure inside the tube, which pressure is added to the water pressure?

What causes the buoyant force on a submerged object?

Under what condition will an object float in a fluid?

What happens to the volume of fluid displaced when an object is totally immersed?

Which equation correctly represents the relationship between buoyant force and weight of the displaced fluid?

What is the outcome if the density of an immersed object is higher than the fluid's density?

When a body is partially immersed in a fluid, what is true about the forces acting on it?

If a floating object has an apparent weight of zero, what does this indicate?

In the context of Archimedes’ principle, what can be inferred about the pressure in a fluid?