4.
D. Answer the following questions in brief.
in which direction does the transfer of heat normally take place!
2. What is the cause of heat generation in the following situations:
(a) We apply brakes on our fast moving car
(b) People often jump up and down to feel warmer in cold weather.
State two types of physical changes that may take place when a substance is
healed
In what way(s) does a clinical thermometer differ from an ordinary thermometer?
5 State the mode/different modes, of heat transfer, in the following situations.
(a) A paper cup, full of hot soup, lying on a table
(b) Cooking vegetables in a pan,
(0) Melting of a chocolate bar, in the school bag, on a hot day.
(d) Cooking food in a microwave oven
What is meant by sea breeze? When does it occur?
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plz give single question at a time plz .
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