Forces in Fluids Review

What is the formula for pressure in fluids?

• P = F/d

• P = mV

• P = FV

• P = F/A

State Archimedes' principle.

• Archimedes' principle states that the buoyant force acting on a body submerged in a fluid is equal to the weight of the body.

• When a body is submerged in a fluid, it experiences a downward force equal to the weight of the fluid displaced by the body.

• When a body is partially or fully submerged in a fluid, it experiences an upward buoyant force equal to the weight of the fluid displaced by the body.

• Archimedes' principle states that the buoyant force acting on a body submerged in a fluid is equal to the volume of the body.

What is the buoyant force?

• The buoyant force is the downward force exerted on an object immersed in a fluid.

• The buoyant force is the force exerted by gravity on an object immersed in a fluid.

• The buoyant force is the force exerted by the object on the fluid.

• The buoyant force is the upward force exerted on an object immersed in a fluid.

Explain Pascal's law.

• Pascal's law states that when there is an increase in pressure at any point in a confined fluid, there is an equal increase in pressure throughout the entire fluid.

• Pascal's law states that pressure is not affected by changes in volume or temperature.

• Pascal's law only applies to gases, not liquids.

• Pascal's law states that pressure decreases when there is an increase in pressure at any point in a confined fluid.

What is the equation for fluid dynamics?

• Navier-Stokes equation

• Maxwell's equation

• Newton's equation

• Einstein's equation

How is pressure in fluids related to depth?

• Pressure in fluids increases with depth.

• Pressure in fluids remains constant with depth.

• Pressure in fluids decreases with depth.

• Pressure in fluids is unrelated to depth.

What is the unit of pressure?

• kg

• m

• Pa

• s

How does the buoyant force change with the density of the fluid?

• increases

• has no effect

• remains constant

• decreases

What are some applications of Pascal's law?

• chemical systems, chemical brakes, chemical lifts, chemical presses

• hydraulic systems, hydraulic brakes, hydraulic lifts, hydraulic presses

• electrical systems, electrical brakes, electrical lifts, electrical presses

• mechanical systems, mechanical brakes, mechanical lifts, mechanical presses

What is the Bernoulli's equation?

• The Bernoulli's equation relates the volume, velocity, and elevation of a fluid.

• The Bernoulli's equation relates the density, velocity, and elevation of a fluid.

• The Bernoulli's equation relates the pressure, velocity, and elevation of a fluid.

• The Bernoulli's equation relates the temperature, velocity, and elevation of a fluid.