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1. Why does a small pebble sink in water? Because it weighs more than the water it displaces, a little stone sinks. 2. A motorboat is a lot heavier than a pebble. Why does the boat float? Because its weight is equivalent to the weight of the water it moves, a motorboat floats.
4 dni temu · Archimedes’ principle, physical law of buoyancy stating that any body submerged in fluid (gas or liquid) at rest is acted upon by an upward, or buoyant, force, the magnitude of which is equal to the weight of the fluid displaced by the body. Learn more in this article.
Why do some materials like wood float in water, and others don’t? Interact with blocks of different materials, including a custom option by modifying their mass and volume, to explore the effect on the density and discover the conditions for sinking or floating in water.
Introduction: Over 2,000 years ago, the Greek mathematician Archimedes discovered that an object in water is pushed up by a force equal to the weight of the displaced water. This law, called Archimedes’ principle, has two consequences: If an object floats, its mass is equal to the mass of the displaced water.
Direct Measurement of Mass. Displacement Method. When an object is submerged in water, its weight decreases by an amount equal to the buoyant force. The direct measurement of mass will measure the weight of an object first in air, then while it is sub-merged in water.
The Archimedes water displacement method is one of the most convenient and easiest methods of measuring the volume of an irregularly shaped object. And you don’t need a bathtub for it to work either!
Archimedes’ principle states that the buoyant force on the object equals the weight of the fluid displaced. This, in turn, means that the object appears to weigh less when submerged; we call this measurement the object’s apparent weight .
