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Physics 9 Chapter 9 - Transfer of Heat - 2
1.
What is the mode of transfer of heat by vibrating atoms and free electrons in solids from hot to cold parts of a body called?
a) Conduction of heat
b) Convection of heat
c) Radiation
d) Green house effect
2.
All metals are .........................of heat?
a) Bad conductors
b) Good conductors
c) Very good insulators
d) Good insulators
3.
What are the substances called through which heat does not conduct easily?
a) Good conductors
b) Both b and c
c) Insulators
d) Bad conductors
4.
What are the substances called through which heat does not conduct easily?
a) Good conductors
b) None of these
c) Bad conductors
d) Bad insulators
5.
What are the substances called through which heat does not conduct easily?
a) None of these
b) Bad insulators
c) Good conductors
d) Insulators
6.
Which of the following are the examples of insulators?
a) Copper
b) Iron
c) Wood
d) Aluminium
7.
Which of the following are the examples of insulators?
a) Copper
b) Iron
c) Cork
d) Aluminium
8.
Which of the following are the examples of insulators?
a) Aluminium
b) Iron
c) Cotton
d) Copper
9.
Which of the following are the examples of insulators?
a) Aluminium
b) Wool
c) Copper
d) Iron
10.
Which of the following are the examples of insulators?
a) Copper
b) Iron
c) Glass
d) Aluminium
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