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Which of the following of a substance change/s on heating?
a) length                                               
b) shape
c) volume and density       
d) all of these

d

When a substance is heated, its length, volume, shape or density change, this is called
a) thermal conductance
b) thermal stability
c) thermal equilibrium
d) thermal expansion

d

What happens to all three states of matter on heating?
a) they contract                  
b) they expand
c) they do not cchanged
d) all of these

b

What happens to all three states of matter on cooling?
a) they contract                  
b) they expand
c) they do not changed
d) all of these

a

Thermal expansion is……..for different states of the same substance.
a) same                                 
b) different
c) not fixed                          
d) all of these

b

Which of the following state of matter expand more than others?
a) solids
b) liquids               
c) gases 
d) none

c