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Why is the back of an electric fire shiny?
Probably so science teachers can ask the question - the answer to which is that shiny surfaces are poor emitters of infra red radiation, thus minimising heat loss from the kettle and improving the rate of heat at which it heats the water for your cup of tea ( in the UK) or coffee (U.S)
A thermos bottle has a shiny interior What type of heat transfer does it prevent?
It prevents heat loss through radiation.It prevents heat loss through radiation.It prevents heat loss through radiation.It prevents heat loss through radiation.
What does a loft insulation do?
It reduces the heat loss through the ceilings of the rooms below.
How does cavity wall insulation reduce heat loss?
Most outside walls have an empty space between the 2 layers of bricks called a cavity . This reduces heat loss by conduction through the bricks. Heat energy reaches the interior wall The heat energy is conducted through the wall The air cavity between the two walls in a cavity wall acts as an insulator and reduces heat loss by conduction
Does loft insulation reduce heat loss by conduction convection or radiation?
Insulation reduces heat loss by replacing air space with a less conductive material (insulation). Therefore the answer is conduction.
Why are shiny outer surfaces needed in a vacuum flask?
The outer surfaces do not need to be shiny. The interior ones do, to reflect heat back rather than let the heat pass out of the vacuum flask. The vacuum between the double walls of the flask also reduces heat loss.
How can you prevent heat loss by using air gaps insulation and shiny surfaces?
nerd
Why are space suits shiny for?
1. space suits are shiny because radiation (method of heat loss) bounces off shiny surfaces, so this means the astonaught will keep warm becasue the heat will bounce back to his body and keep him warm.2. shiny materials do not absorb sweat or liquids
Why is the back of an electric fire shiny?
Probably so science teachers can ask the question - the answer to which is that shiny surfaces are poor emitters of infra red radiation, thus minimising heat loss from the kettle and improving the rate of heat at which it heats the water for your cup of tea ( in the UK) or coffee (U.S)
How does fur reduces the rate of heat loss from an organism?
Fur can hold a layer of air around it.That layer act as an insulator.So it reduces heat loss.
Why woolen clothes keep us warm?
Its just because woolen clothes have fibres and between those fibres air is trapped which reduces heat loss. Air reduces heat loss because it is an insulator or poor conductor of heat.
A thermos bottle has a shiny interior What type of heat transfer does it prevent?
It prevents heat loss through radiation.It prevents heat loss through radiation.It prevents heat loss through radiation.It prevents heat loss through radiation.
What does a loft insulation do?
It reduces the heat loss through the ceilings of the rooms below.
How does coiling up help a snake to stay warm?
Coiling up - reduces the surface area of the snake - and thus reduces the heat loss.
Why does coffee stay hot longer in a shiny pot?
because it absorbs the heat given off by the coffee reducing heat loss.
How does cavity wall insulation reduce heat loss?
Most outside walls have an empty space between the 2 layers of bricks called a cavity . This reduces heat loss by conduction through the bricks. Heat energy reaches the interior wall The heat energy is conducted through the wall The air cavity between the two walls in a cavity wall acts as an insulator and reduces heat loss by conduction
How does cavity wall insulation reduce heat-loss?
Most outside walls have an empty space between the 2 layers of bricks called a cavity . This reduces heat loss by conduction through the bricks. Heat energy reaches the interior wall The heat energy is conducted through the wall The air cavity between the two walls in a cavity wall acts as an insulator and reduces heat loss by conduction
