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What happens to the density of an object if it's temperature decreases?
Wiki User
∙ 9y ago
Density will increase. The metal contracts (gets smaller) but will still weigh the same thing.
Sherwood Ritchie
Wiki User
∙ 9y agoDensity is mass/volume and mass stays constant. according to PV=nRT, if temperature increases, volume increases because they are directally proportional. therefore, if volume increases because temperature increases, then density should decrease because density and volume are inversely proportional. hope that helps!
Like many rules however water (as ice) does not follow this exactly. Ice expands slightly as it cools below 70 K
Wiki User
∙ 13y agoAs temperature increases, the kinetic energy of the atoms of whatever substance you may have will increase. This will cause the atoms to vibrate more vigorously which will cause the atoms to be further away from each other.
As the atoms are further apart from each other, the mass per unit volume(density) will decrease.
Wiki User
∙ 10y agoFor most substances at most temperatures and pressures, when temperature is decreased, volume becomes smaller and density becomes higher. One well-known exception is water between 4 C and 0 C at standard pressure.
Wiki User
∙ 14y agoYes, because the volume increases while the mass stays the same. But the change is relatively small in most cases.
Wiki User
∙ 13y agoAccording to my knowledge in Chemistry the density would decrease.
Wiki User
∙ 6y agoDensity will increase. The metal contracts (gets smaller) but will still weigh the same thing.
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What happens to a floating object in a river when air pressure and density decreases Does it rise in floating level sink or stay the same?
when the density decreases then the object tends to come up.and when when the air pressure out side decreases too then it wont...so nothing would happen to the object
What changes when the mass of an object increases while volume stays the same?
Assuming mass does not also increase, then density decreases if volume increases. For example, let's say Mass= 100 and Volume= 50 Density would = 2 Now, lets increase the volume. Mass would still = 100, and let's increase the volume to 75. Density would then equal 1.333... 2 is greater than 1.333.... so yes, density decreases as volume increases.
If two objects have the same density does it float are sink?
The previous answer was incorrect. Whether or not it will float has nothing to do with density being more or less than one. If an object is of the same density as the fluid, it will float just beneath the surface of the fluid, because the buoyant force is exactly equal to the object's weight. (which makes sense, because buoyant force is equal to the weight of the volume of fluid displaced by the object, and the densities are equal. Remember, density=m/V!) This results in a net force of zero (buoyant force pushes up with exactly the same magnitude as the weight vector, which points down, so they cancel out), meaning there is nothing to cause the object to sink or float.
When air is warm what happens to its density?
Heat causes expansion, which reduces an object's density. The tighter together the molecules are the denser the object, when you add heat the molecules expand allowing more When_air_is_warmed_what_happens_to_its_densityof movement between molecules, resulting in lower density of a particular object, such as air.Plus water evaporates.Read more: When_air_is_warmed_what_happens_to_its_density
Why does some things float on water while others dont?
Some objects will float on water as the density of the object is less than that of water. Conversely, if an object is more dense than the density of water, then it will sink.
What happens to the thermal energy of an object as temperature decreases as it increases?
it decreases because when an object is moving as the temperature decreases the object decreases
What happens to an object's density when it heats up and expands?
The density decreases.
What heat flows out of an object what happens to the temperature?
Temperature decreases.
What happens to radiation from an object as its temperature increases?
radiation from object decreases as the temperature rises
When the temperature of an object decreases what happens to the molecules?
In every liquid (with the exception of water) the molecules, when the temperature decreases, contract.
What happens to the temperature of an object when it loses heat energy?
When an object loses some of its heat, its temperature decreases (gets lower).
How does raising the temperature of an object affect its density?
When you raise the temperature the molecules in the object start to move fast and bounce off one another. They start to move further apart. So the density of the object decreases.
When air transfers energy to a cooler object what happens to air temperature?
it decreases.
What happens to a floating object in a river when air pressure and density decreases Does it rise in floating level sink or stay the same?
when the density decreases then the object tends to come up.and when when the air pressure out side decreases too then it wont...so nothing would happen to the object
What is negative temperature cofficient?
A negative temperature coefficient indicates that the dependent variable, the variable of interest increases when the temperature decreases and conversely. This could, for example, be the density of an object (excluding water at 0 - 4 deg C). As the temperature goes up the volume increases so the density decreases.
If you cut an object in half its density?
decreases
Does temperature affect the elasticity of an object?
As temperature decreases, elasticity also decreases.
