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Science CBSE Homework Assignments
Class 7
Heat
Convection and radiation
1.
Exercise on modes of heat transfer
Task:
3
m.
Choose the correct answer
1
.
Conduction is possible in solids because __________.
(a) particles of solids are closely packed
(b) particles of solids are loosely packed
(c) heat is transferred from the colder end to the hotter end of an object
(d) both a and b
2
.
A wooden spoon is dipped in a cup of ice cream. Its other end
becomes cold by the process of radiation
does not become cold
becomes cold by the process of conduction
becomes cold by the process of convection
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