1. Write the scientific term for each of the following: (a) The weight of a liquid column per unit area whose height is from a certain point inside the liquid to its surface. (b) A... 1. Write the scientific term for each of the following: (a) The weight of a liquid column per unit area whose height is from a certain point inside the liquid to its surface. (b) An organ exists in some fish which is filled with gases to allow them to control the buoyant level in water. 2. Give reasons for: (a) Sea level is the same in all open seas and oceans. (b) The level of the liquid in the connected vessels is the same regardless of their geometrical shapes. (c) Salmon fish can transfer among different depths in seas and rivers. 3. When does the pressure difference between two points inside a homogeneous liquid equal zero?
Understand the Problem
The image contains multiple questions related to fish anatomy and physics concepts involving pressure and buoyancy in liquids. It also includes scientific terminology and reasoning about fluid mechanics and aquatic biology.
Answer
1. (a) Hydrostatic pressure, (b) Swim bladder. 2. (a) Sea level consistency, (b) Pascal's principle, (c) Pressure adaptability. 3. At the same depth.
- (a) Hydrostatic pressure, (b) Swim bladder.
- (a) Gravitational forces and water continuity maintain constant sea level, (b) Pascal's principle ensures the same liquid level regardless of vessel shape, (c) Salmon possess adaptability to different pressures.
- The pressure difference is zero at the same depth inside a homogeneous liquid.
Answer for screen readers
- (a) Hydrostatic pressure, (b) Swim bladder.
- (a) Gravitational forces and water continuity maintain constant sea level, (b) Pascal's principle ensures the same liquid level regardless of vessel shape, (c) Salmon possess adaptability to different pressures.
- The pressure difference is zero at the same depth inside a homogeneous liquid.
More Information
Hydrostatic pressure is crucial for calculating force in fluids, while swim bladders help fish maintain buoyancy. Pascal's principle explains why interconnected fluids stabilize at the same level.
Tips
It's important to remember differences in pressure are due to depth variations in the same fluid. Misidentifying terms can occur if definitions are not well understood.
Sources
- 14.1 Fluids, Density, and Pressure | University Physics Volume 1 - courses.lumenlearning.com
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