Pufferfish, also known as blowfish, can quickly expand by gulping water (or air) into their elastic stomachs. Almost all pufferfish contain tetrodotoxin, a deadly toxin that is up to 1,200 times more poisonous than cyanide. Will the buoyant force on a pufferfish increase or decrease when it suddenly 'blows up with air' in the ocean and doubles its size?... Use the Rationale section below to EXPLAIN your choice ... (include calculations where needed)
Fluid Pressure
The term fluid pressure is coined as, the measurement of the force per unit area of a given surface of a closed container. It is a branch of physics that helps to study the properties of fluid under various conditions of force.
Gauge Pressure
Pressure is the physical force acting per unit area on a body; the applied force is perpendicular to the surface of the object per unit area. The air around us at sea level exerts a pressure (atmospheric pressure) of about 14.7 psi but this doesn’t seem to bother anyone as the bodily fluids are constantly pushing outwards with the same force but if one swims down into the ocean a few feet below the surface one can notice the difference, there is increased pressure on the eardrum, this is due to an increase in hydrostatic pressure.
Pufferfish, also known as blowfish, can quickly expand by gulping water (or air) into their elastic stomachs. Almost all pufferfish contain tetrodotoxin, a deadly toxin that is up to 1,200 times more poisonous than cyanide. Will the buoyant force on a pufferfish increase or decrease when it suddenly 'blows up with air' in the ocean and doubles its size?... Use the Rationale section below to EXPLAIN your choice ... (include calculations where needed)
- A. Not enough information is supplied to answer this question.
- B. The buoyant force will certainly stay the same since it is independent of the size of the fish!
- C. The buoyant force will certainly increase.
- D. The buoyant force will certainly decrease.
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