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10Black-coloured objects absorb more heat than white-coloured objects.
White or pale-coloured objects are good absorbers of heat radiation.
Dark-coloured hot objects emit more heat radiation.
White clothes are preferred in summer because they absorb less heat.
Black clothes are more suitable in hot places.
The inner surface of a solar heater is painted black to absorb more heat.
Cooking vessels are coated black to conserve fuel.
A hot object absorbs heat radiation from its surroundings.
Hot drinks become colder due to radiation of heat.
A refrigerator radiator releases heat to the surroundings by radiation.
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Which colour box will show the highest temperature in the activity?
White-coloured objects have
Dark-coloured objects emit
Which clothes are suitable for winter?
Buildings in hot regions are painted white to
Solar heater surfaces are painted black to
Why are cooking utensils coated black?
When an object is hotter than surroundings, it
Heat transfer when sitting near fire occurs mainly by
Light-coloured clothes absorb
Black-coloured objects are good ______ of heat.
White or pale-coloured objects emit ______ radiation.
Dark-coloured hot objects emit ______ heat radiation.
White clothes are worn in ______ season.
Black clothes are suitable in ______ season.
Inner surface of a solar heater is painted ______.
Cooking utensils are coated black to absorb more ______.
Hot objects lose heat until ______ equilibrium is reached.
Sitting near fire gives heat by ______.
Refrigerator radiator throws heat into the ______.