Heat causes expansion because
Heat occupies space
Of increase in the movement of molecules
Matter tries to escape from the heat
None of the above is true - it is not yet known why heat cause expansion
Heat causes
Change of state
Change of temperature
Expansion
All of these
in solids, the transfer of heat takes place by
Convection
Conduction
Radiation
Convection of heat takes place in
Only solids
Only liquids
Liquids and solids
Liquids and gases
A clinical thermometer ranges from
20oC - 40oC
36oC - 52oC
94oC - 108oC
35oC - 43oC
Which is the only melt found in the liquid state at room temperature?
Mercury
Copper
Silver
Aluminium
Temperature is measured by measuring expansion on heating. Expansion in which of these is most commonly used?
Solid
Liquid
Gas
None of these
Clinical thermometer has
Alcohol as liquid
A kink in its stem
water as liquid
A bimetallic strip is made of metals M1 and M2. On cooling through the same temperature, M1 contracts more than M2. When the strip is heated, it will
Bend towards M1
Bend towards M2
Not bend at all
Direction of bending cannot be predicted
The SI unit of temperature is
0C
K
0F
All the above
