SITEMAP School-college Physics Notes: Forces Section 7.
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Pressure and upthrust in fluids: 7.2 Some 'kitchen sink' experiments on density in the home!
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7.2 Some 'kitchen sink' experiments on density in the home!
A The apple has a density of ~900 kg/m3 and floats on water, of density 1000 kg/m3
B This particular potato has a density greater than water and sinks, so we have no idea what its density might be.
C The block of wood has density of ~500 kg/m3 (half of that of water) and floats (it toppled over!) - its density is half that of water and is only half submerged - can you reason out why it is only half submerged?
D A block of wood of density ~1000 kg/m3, the same density as water, so it floats with its upper surface coincident with the surface of water.
E Another block of wood of density ~600 kg/m3, so more of it is immersed in water than the other less dense bloc of wood above.
F I made a small 'barrel' of ice and placed in the beaker of water. Since ice has a density of 917 kg/m3, it floats on water.
Keywords, phrases and learning objectives for simple float or sink experiments in the home
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