Yes, the cool air is lighter than the warm air and that is why Ac's are at the top or high level of the room so in this way when the AC gives out cool air it travels down and the warm air travels upwards and the whole room gets cool quickly.
No, water with a greater volume will cool slower than water with a lower volume because it takes more energy to heat or cool a larger volume of water. The larger volume of water will retain heat longer than the smaller volume.
Less dense than solid, more than gas; definite volume, but no definite shape; and lighter vescosity than solids.
In order to measure volume, one normally sees how much water it displaces. If the body floats, the water displaced will be equal to the weight of the body, not the volume. It will be necessary to force the body down so that it is totally submerged. If there is an anchor and chain below the surface, the water displaced when the body is attached and submerged will have the same volume as the body.
No, a body totally submerged in a liquid displaces a volume of water equal to its own volume. This is known as Archimedes' principle, which states that the buoyant force acting on an object is equal to the weight of the fluid displaced by that object.
No, steel is not lighter when in water. Steel is denser than water, so it will sink in water rather than float. The weight of the steel displaces an amount of water equal to its weight, making it sink.
Under the same conditions of pressure and temperature, any volumeof hydrogen weighs less than an equal volume of helium.
No, water with a greater volume will cool slower than water with a lower volume because it takes more energy to heat or cool a larger volume of water. The larger volume of water will retain heat longer than the smaller volume.
It isn't. How did you get that idea? Ice is much lighter than lead, for the same volume.
it is stronger than steel but 42% lighter than it
Darker colors absorb more heat energy from sunlight than lighter colors. When the heat source, such as sunlight, is removed, darker colors also release that absorbed heat more quickly than lighter colors. This is why darker colors cool down faster than lighter colors.
It is lighter than the volume of water which it displaces.
Yes, an object that is heavier and has less volume is more dense than an object that is lighter and has greater volume. Density is determined by the mass of an object divided by its volume, so a smaller volume with higher mass will result in a higher density.
In fact, pyrite is heavier than gold. I'm not sure exactly, but I believe it is anywhere from 5% to 20% heavier than gold of the same volume.
given the two objects are of equal volume, the one with a lower density would would weigh less.
Ice is lighter than liquid water because the molecular structure of ice allows for more empty space between molecules, causing it to be less dense. This means that a given volume of ice will weigh less than an equal volume of liquid water, resulting in ice floating on top of water.
The weight of a mineral is compared to the weight of an equal volume of water using a measurement called specific gravity. Specific gravity is the ratio of the weight of the mineral to the weight of an equal volume of water. Minerals with a specific gravity greater than 1 are heavier than water, while those with a specific gravity less than 1 are lighter.
Because pumice is lighter than obsidian always. That means obsidian weighs more than pumice.