With the exception of water, the particles of an object move closer together and become a solid. Being closer together makes the density rise once it becomes frozen but the density won't rise if the temperature is lowered and the object is already frozen. When water freezes, the density lowers, making ice float.
The concentration of matter in an object is called the density.
The density of the object is at least equal to, and possibly greater than, the density of the liquid in the beaker.
Is this the density of a liquid or an object? If this is the density of a liquid and you want to make an object float, than the density of the object should be less than 2.7. If this is the density of an object you are trying to make float, than the density of the liquid should be greater than 2.7.
If the density of an object which is equal to one(Which is also the density of the water), the object will neither sink nor float but it will be unstable, sometimes you will see the object sink then float. In other words the object is unstable in water....XD
The hotter an object is, the more vigorously its atoms or molecules vibrate, and in doing so generally they take up more space (the object expands). This implies that a hot object is less dense than when it is cooler (because of its volume increase)
Higher than what ?? If the object's density is higher than the density of water, then the object sinks in the water.
The density decreases.
It is halved.
the density will increase because there will be less space
As the speed of an object increases, its density remains constant. Density is a measure of how much mass is contained in a given volume, and it does not change with the object's speed.
To know this you first need to find the density of the object and the density of the fluid on which the the object shall be kept. If the density of the fluid is more than the object's density then the object will float. The object will sink if the reverse happens.
As an object contracts, its volume decreases while its mass remains constant. This results in an increase in the density of the object since density is defined as mass divided by volume.
It floats
Assuming the object is the same straight through - nothing.
If an object with a density below one is placed in water, it will float. This is because the density of the object is less than that of water, causing it to be buoyant and float on the surface.
it will float
If you add more of the same substance to an object, the density of the object will increase. Density is calculated by dividing the mass of an object by its volume, so as you add more substance, the mass increases but the volume does not increase proportionally, resulting in a higher density.