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Multiple Choice

Pascal's Law states that

Pascal's Law says that when you apply pressure to a confined fluid, that pressure is transmitted undiminished and equally in all directions through the fluid and to the walls of the container. This means the fluid carries the same pressure everywhere inside the closed space, so a small-area piston can generate a larger force on a larger-area piston simply because F = P × A. This is why the statement about external pressure in a closed vessel being uniformly transmitted throughout the fluid, forming the basis for hydraulics, is correct. The other ideas don’t fit because pressure does not stay only at surface contact, it moves through the entire fluid; it’s not transmitted through the solid frame as the primary mechanism; and it certainly is transmitted, not confined or absent.

Pascal's Law says that when you apply pressure to a confined fluid, that pressure is transmitted undiminished and equally in all directions through the fluid and to the walls of the container. This means the fluid carries the same pressure everywhere inside the closed space, so a small-area piston can generate a larger force on a larger-area piston simply because F = P × A.

This is why the statement about external pressure in a closed vessel being uniformly transmitted throughout the fluid, forming the basis for hydraulics, is correct. The other ideas don’t fit because pressure does not stay only at surface contact, it moves through the entire fluid; it’s not transmitted through the solid frame as the primary mechanism; and it certainly is transmitted, not confined or absent.