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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.
विकल्प
True
False
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उत्तर
True.
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संबंधित प्रश्न
Fill in the blank
The temperature of boiling water is _______
Fill in the blank
Black and dull surfaces are ______ of heat.
Name the instrument used to measure the temperature of a body.
The fig. shows a glass tumbler containing hot milk which is placed in a tub of cold water. State the direction in which heat will flow.
Iron rims are heated before they are fixed on the wooden wheels. Explain the reason.
Describe one experiment to show that liquids 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.
The bottom of a cooking utensil is painted black. Give the reason.
______ is the only matter on the Earth that can be found naturally in all three states.
Mention the factors affecting the flow of heat.
