The substance that the cube is made of is typically a type of plastic, such as polystyrene or polyurethane foam. These materials have a low density and are able to float on water.
The density of the cube is a key factor in determining whether it will float or sink. If the density of the cube is less than the density of the liquid it is placed in (usually water), it will float. If the density is greater, it will sink.
This is due to the density of the substance. Materials with a lower density have more empty space between their molecules, making them less dense and able to float. Materials with a higher density have less empty space, making them more dense and likely to sink.
Yes, the shape of the cube can play a role in its ability to float. A cube with a larger surface area will displace more water and be more likely to float. A cube with a smaller surface area may not displace enough water and will sink.
Aside from density and shape, other factors that can influence the floating of a cube include the temperature and salinity of the liquid it is placed in. These can affect the density and buoyancy of the liquid, potentially impacting the floating of the cube.