Definition

1. Noun:
   • (Hydrostatics): A fundamental physical law stating that when a body is fully or partially submerged in a fluid, the volume of the body that is immersed is exactly equal to the volume of the fluid it displaces.

Usage

• This principle is a specific application of Archimedes' principle and is a foundational concept in fluid mechanics.
• It is used to determine the volume of irregularly shaped objects by measuring the volume of fluid they displace.
• It explains phenomena such as why ships float and how hydrometers work.

Examples

• Noun:
  • The principle of liquid displacement is used to find the volume of this rock by submerging it in a graduated cylinder of water.
  • According to the principle of liquid displacement, a submerged object pushes aside a volume of water equal to its own volume.

Advanced Usage

• "To apply the principle of liquid displacement": To use this law to solve a practical problem, such as calculating density or volume.
  • We can apply the principle of liquid displacement to determine the purity of this metal alloy by comparing its density to a known standard.

Variants and Related Words

• Archimedes' principle (n): The more general law stating that the upward buoyant force on an object immersed in a fluid is equal to the weight of the fluid displaced by the object. The principle of liquid displacement is a direct consequence of this.
• Displacement (n): The act of displacing or the state of being displaced; in this context, the volume of fluid moved aside by an object.
• Fluid displacement (n): A more general term that can refer to the displacement of any fluid (liquid or gas).

Synonyms

• Displacement principle: A more concise synonym.
• Law of displacement: A synonymous phrase emphasizing its status as a physical law.

Related Concepts

• Buoyancy (n): The ability or tendency of an object to float in a fluid, directly explained by Archimedes' principle and displacement.
• Hydrostatics (n): The branch of fluid mechanics that studies fluids at rest, within which this principle is a key concept.
• Volume by displacement (n): A method for measuring volume based directly on this principle.

Noun

1. (hydrostatics) the volume of a body immersed in a fluid is equal to the volume of the displaced fluid