Density
Physics: Edexcel IGCSE, topic 5.1.1
Density
Density is equal to mass divided by volume.
Density
- Density is given by ρ=m/V, where the ρ is the greek letter rho, not a p!
- m is mass, V is volume.
Upthrust
- An object floats in a fluid if the density of the object is lower than the density of the fluid.
- The force that keeps the object afloat is called upthrust.
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Law of Displacement
- The Law of Displacement says that an object completely submerged in a fluid (like water) will replace an amount of fluid equal to its own volume.
Test yourself on Density
Which of the following are true?
Which of these are true about calculating density?
Why did the air pockets inside the Titanic help it float before it hit the iceberg?