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When does a hot air balloon rise?
When a hot air balloon is filled with the hot air the air around the balloon is a lot denser. So by convection the balloon rises and the less dense air is replaced by dense air underneath it.
How do you know that heat travels from the sun to the earth by radiation?
It's the only way heat could reach us. It comes via electromagnetic radiation, discovered theoretically by James Clerk Maxwell. It can't come by conduction or convection because space is empty, there is no air there.
How do convection currents make a hot air balloon to rise?
because the air becomes less dense and spreads out so becomes hotter and hot air rise so the balloon does.
Why do we use warm air in a hot air balloons?
This is because of convection. Hot air rises and cool air falls which causes the balloon to rise.
Why a hot air balloon floats?
a hot air balloon floats because of convection which means that the heat that is from the flame goes up than back down than replaces it with cooler air it goes in a cycle.
When a hair dryer heats a balloon and the air inside it the balloon expands is radiation convection or conduction?
it is radiation but is also convection. thanks for the time to read it
What are the three methods of energy transfer?
radiation convection conduction
How is Radiation different than Conduction and convection?
INSULATION IS EEPING THE HEAT INSIDE AND convection and radiation I HAVE GOT NO IEA HOPE IT HELPS :))
What type of heat energy dose a telly give out radiation or convection or conduction?
Radiation, convection and conduction are not different types of energy, but different methods of conveying the energy. The heat energy from a television set will be conveyed mainly through conduction and convection, ie the casing will heat up through conduction and the air above the televison will become heated through convection. There will be heat transmitted by radiation, but this will quickly encounter air molecules which will then add to the convection effect.
Does body heat use convection conduction or radiation?
in fact all:) since convection is a kind of conduction, which means heat is transferred via motion of the air surround us, we loose heat by conduction with our clothes, convection from our uncovered skin areas and radiation the same
Can radiation and convection and conduction be mixed?
i think it can or can not be mixed from all the air and hot heat
When the fan blows cooler air from outside the car into the car and forces warmer air in the car out is this an example of conduction convection or radiation?
convection
What are some examples of conduction radiation and convection?
Radiaton- the sun rays conduction putting a pan on a hot stove convection- hot air rising cooling and falling
How does conduction convection and radiation work?
Conduction: Heat transfer by direct contact, such as from an electric coil on a stove to the pot. Convection: Heat transfer though the air, such as in an oven. Radiation: Heat transfer via waves, such as from the Sun to Earth.
How do conduction convection and radiation affect the movement and temperature of air near the ocean?
Conduction, convection and radiation affects the movement and temperature of air near the ocean. Conduction causes difference in temperatures. For example, during a hot day, land heats up more quickly than water. Water is a better conductor of heat. The air near the land's surface is heated due to conduction and radiation. It expands and rises since it is lighter than surrounding air. This is called convection. To replace the air that rose, the air from the sea's surface blows to land.
Describe the way in which all machanism of heat transfer are involved in hearting the air?
Convection, conduction, and radiation
What are 3 ways in which thremal energy can be transfered?
Heat is transferred through Convection, Conduction, and Radiation. Convection is heat transferred through a liquid medium such as air, as felt from your furnace. Conduction is through a solid medium. One instance of this takes place through the bottom of a cooking pan. Radiation is transferred through a void in the form of low frequency light waves, or infra-red radiation. This can easily be observed by moving in and out of a shadow into the sun. The air temperature around you remains constant, but you instantly feel the heat of the sun. That's from the sun's radiation.
