When it is cold, molecules move slower than when it is hot.
Hot air molecules have more kinetic energy and move faster than molecules in cold air. This results in hot air being less dense and having lower air pressure compared to cold air.
Molecules in cold substances move more slowly compared to molecules in warmer substances because lower temperatures reduce the energy of the molecules, causing them to move less and at a slower pace.
In hot areas the molecules move quickly and in cold areas the molecules move slower.
The process is called convection. Warm molecules rise because they are less dense and cold molecules sink because they are more dense. This movement of fluids helps redistribute heat in a system.
Heat flows from hot to cold because when hot and cold bodies contact with each other (thermal contact), the fast moving molecules of the hot body collide with slow moving molecules of the cold body; therefore the molecules of hot body become slower and body becomes cool, and the molecules of other body (cold) becomes faster and the cold body becomes hot. Notice: when molecules of a body moves faster it's kinetic energy increase therefore temperature increases and it becomes hot.
does molecules move in cold water
If you have the same volume of both then there are in cold water more molecules.
In hot areas the molecules move quickly and in cold areas the molecules move slower.
the water molecules get cold and expand and turn into ice
If molecules are bunched up is this hot or cold
Hot air molecules have more kinetic energy and move faster than molecules in cold air. This results in hot air being less dense and having lower air pressure compared to cold air.
they get exited and move faster than cold molecules
The molecules in warm water are moving quicker, meaning that the hydrogen bonds between the molecules are breaking very quickly whereas the molecules in cold water are moving much slower.
Molecules in cold substances move more slowly compared to molecules in warmer substances because lower temperatures reduce the energy of the molecules, causing them to move less and at a slower pace.
Hot water molecules move a lot faster han cold water molecules because they have a higher kinetic energy due to the heat.
heat
Of course, hot water molecules, having more kinetic energy.