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Why does placing a jar under warm running water help loosen the lid?
There are two ways that putting a jar under warm water helps loosen the lid. When heated, materials expand. So the air in the jar could expand, reducing any internal suction. Secondly, the metal cap could expand so as to not have as much friction with the rest of the jar.
What is true A warm air is less dense than cool air B warm air is as dense as cool air. C warm air has no density. D warm air is denser than cool air?
Warm air is less dense than cool air.
How does a balloon expand?
when you fill a balloon with air the air makes pressure. the air pressure maximizes the balloon fabric allowing the balloon to expand.
How does heat affect air?
it causes air to expand
What happens to the volume of solids liquids and gasses as they warm and cool?
Mostly they expand as they warm, contract as they cool.
Warm air in a balloon will what?
EXPAND.
Why does air expand when its warm?
because warm molecules have more energy and movement and either rise when warm or expand if they're warm or surrounded by warmness.
Why do balloon's full of air get bigger when placed in a warm oven?
because the rubber and the air expand .
How air get cooled?
Warm air rises....and when it rises it becomes cooler. ...If the pressure of surrounding air is reduced then the rising air parcel will expand. The molecules are doing work as they expand . This will affect the parcel's temperature.
How does air expand in closed objects?
cool Actually, when there is warm air, like in a balloon it will expand. When you go outside, the balloon will shrink if it is cold outside. When you go back into the warm indoors, the balloon will go back to its normal size.
Does warm air take up more space?
yes, as the particles of air are heated, it moves more rapidly, which causes it to expand
How does convection happen?
Liquids and gasses tend to expand when heated, this lowers the density, thus warm "air" rises and cool air falls.
Why does water expand at the equator?
Water expands at the equator because it is warm there, and warm molecules expand. Warm molecules expand and cold molecules decrease in size.
What do things do when they get warm?
They expand
Why does a hot air balloon when the air inside it is heated?
Heating causes the air inside the balloon to expand. Some of the warm air leaves through the bottom opening of the balloon, keeping the pressure constant.
Warm air rises because it is?
Warm air rises because it is less dense than colder air. As gases get warmer they expand that the molecules become farther apart causing it to become less dense and therefore, lighter per unit squared, this is why it rises.
Why does a hot air balloon rise when the air inside it is heated?
Heating causes the air inside the balloon to expand. Some of the warm air leaves through the bottom opening of the balloon, keeping the pressure constant.
