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Question
How to know weather an object sinks or floats in water .
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Solution
density =mass /volume
If an object weighs more than an equal volume of water, it is more dense and will sink,
and if it weighs less than an equal volume of water, it is less dense and will float
density of water is about 1 g/cm3 or 1kg/L ot 1kg/m^3
Copper sinks in water since its density is more than that of water
forexample A block of copper has a volume of 0.005 m3. The density of copper is 8.96 × 103 kg/m3.
Calculate the mass of the copper block.
ρ = 8.96 × 103 kg/m3
v = 0.005 m3
m = ρv
m = 8.96 × 103 × 0.005
m = 44.8 kg
The mass of the copper block is 44.8 kg
If an object weighs more than an equal volume of water, it is more dense and will sink,
and if it weighs less than an equal volume of water, it is less dense and will float
density of water is about 1 g/cm3 or 1kg/L ot 1kg/m^3
Copper sinks in water since its density is more than that of water
forexample
A block of copper has a volume of 0.005 m3. The density of copper is 8.96 × 103 kg/m3.
Calculate the mass of the copper block.
ρ = 8.96 × 103 kg/m3
v = 0.005 m3
m = ρv
m = 8.96 × 103 × 0.005
m = 44.8 kg
The mass of the copper block is 44.8 kg
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