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प्रश्न
Write true or false for a given statement.
Kerosene contracts on heating.
पर्याय
True
False
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उत्तर
False.
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संबंधित प्रश्न
Write true or false for a given statement.
Heat flows from a body at a high temperature to a body at a low temperature when they are kept in contact.
Fill in the blank
Black and dull surfaces are ______ of heat.
Name two substances which expand on heating.
An empty glass bottle is fitted with a narrow tube at its mouth. The open end of the tube is kept in a beaker containing water. When the bottle is heated, bubbles of air are seen escaping into the water. Explain the reason.
What are the good and bad conductors of heat ? Give two examples of each.
Why are quilts filled with fluffy cotton?
Why are chimneys provided over furnace in factories?
The bottom of a cooking utensil is painted black. Give the reason.
______ is greater for liquids than solids and it is maximum in gases.
When heat energy is added to a substance, the kinetic energy of its particles ______ and so the particles move at a higher speed.
