Conduction is possible ………………….
a) When the bodies are apart from each other
b) When the bodies have same temperature and in thermal contact
c) When they have different temperatures maintaining distance between them
d) Bodies should be in contact and should have different temperature
What do you mean by heat?
a) Heat is a measure of temperature
b) Heat is a form of potential
c) It is form of energy which gets transferred from a hot to cold body
d) none of these
Those materials which allow heat to conduct through them easily. They are called………...
a) good heat conductors
b) bad heat conductors
c) both a and b
d) none of these
Those materials which do not allow heat to flow easily through them
are called………...
a) good heat conductors
b) bad heat conductors
c) both a and b
d) none of these
An aim of thermos flask is to stop……… flowing out. PST ---P-1----18L
a) all forms of heat
b) kinetic energy of molecules
c) vibration motion of the molecules
d) radiation
When we sit in the Sun we are heated by:
a) convection
b) conduction
c) radiation
d) convection current
