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The working of a bimetallic strip is based on which principle?
Unequal expansion rates of solids
Among the three states of matter: solids, liquids and gases, which state of matter expands the least?
solid
How does perspiration in summer keep our bodies cool?
When we perspire, the heat from the body is used to evaporate the sweat, thus making our bodies cool.
An iron washer is heated. State its effect on the inner diameter, mass and density
inner diameter increases, mass and density remains the same
Name any one factor affecting cubical expansion of liquids
nature of liquid, rise in temperature, original volume of the liquid
