1)Why is the freezer at the top in most refrigerrators?
2)Freezers in supermarkets are not covered. How does the food in the freezer stay frozen?
3)Heat energy from the sun reaches us in the form of _______ (__________) .
4)How do snakes detect the presence of a rat nearby?
By picking ______ as all warm blooded animals emit heat in form of ________ .
5) Infra-red raidiation travels at the speed of __________.
6) Name 3 best radiators of heat.
7) Name 3 poorest radiators of heat.
8) Best radiators are also ______ of radiant heat. They also ______ of heat.
9) Poorest radiators are also ________ of heat. They also _______ of heat.
10) Any body with ______ than room temperature will radiate heat to the surroundings.
PLEASE help me ans. as many of my quries as possible! THANKS LOADS! I REALLY APPRICIATE IT!
2006-06-11
01:11:57
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4 answers
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asked by
Dark A
1
in
Physics