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Does convection take place when cold airis less dense than warm air?
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What is more dense cold water or warm?
cold ocean water is more dense than warm water
How is a condenser kept cold?
by convection current
What type of water is more dense cold salty water warm or less salty?
Cold salty water will be the most dense.
What type of water is more dense cold salty or warm less salty water?
Cold salty water will be the most dense.
What direction will heat energy move when placed with a cold object?
convection
Why do convection currents take place in the atmosphere?
cold air is less dense
Does convection take place because cold air is more dense than warm air?
yes
What can carry heat by convection?
Convection is when fluids (yes, air is considered a fluid) mix... Hot (less dense) molecules will rise as opposed to cold (more dense) molecules will sink.
How are convection currents important in the Earth's system?
Deep, cold-water currents play an important role in creating the ocean oasis of the film. Convection currents play a role in the circulation of fluids. Convection currents are the result of differential heating. Lighter (less dense), warm material rises while heavier (more dense) cool material sinks.
can hot water float on cold?
Yes, as hot water is less dense than cold water so it will float on top of cold water. Over time the temperatures will equalise due to natural conduction and convection.
What are everyday examples of convection?
When you are boiling water, it's an example of convection because the water at the bottom of the pot gets warm and becomes less dense causing it ti rise to the top and it then makes the cold water warm and the cycle continues. This is known as a convection current.
What are some everyday examples of convection?
When you are boiling water, it's an example of convection because the water at the bottom of the pot gets warm and becomes less dense causing it ti rise to the top and it then makes the cold water warm and the cycle continues. This is known as a convection current.
Explain what the difference between warm and cold air with regards to movement Why does this happen?
Warm air rises and cold air sinks. This is called convection and happens because warm air is less dense and lighter.
What is a convection current caused by?
The liquid or gas which transfers the heat can circulate round and round between the hot and cold regions. The flow of liquid or gas is called a convection current. Convection currents are caused by changes in density.
When hot and cold air meet the hot air rises to the top but which process causes the hot air to rise?
hot air rises because it is less dense than cold air..this occurs by the process of convection
In what three ways can heat be transferred?
Conduction - The vibrations of hot particles are passed to their neighbours. Takes place in solids.Convection - Hot fluids are less dense then cold fluids and so they can rise while the cold fluid falls setting up a convection current. Takes place in liquids and gases.Radiation - Energy in the form of electromagnetic rays (Infrared rays). Only method through a vacuum.
What is more dense a cold object or a hot object?
A cold object is more dense.
