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प्रश्न
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उत्तर
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संबंधित प्रश्न
Name the one common unit of temperature. Write their symbols also.
What must be the temperature in Fahrenheit so that it will be twice its value in Celsius?
Name two substances which expand on heating.
Name two substances which contract on heating.
Is it possible to heat a liquid or gas from above? Explain your answer.
Draw a neat and labeled diagram of a Six's maximum and minimum thermometer. Explain briefly, the working of this thermometer. Give a use of this thermometer.
Give a scientific reason for the following:
It is better to use thin blankets to keep the body warm rather than using a single blanket of thickness equal to their combined thickness.
The following figure shows a copper washer. Explain, giving reasons, whether the following characteristics of the washer increase, decrease, or remain the same when it is heated.
(a) Internal diameter
(b) Volume
(c) Mass
(d) Density
(e) External diameter
One calorie is the amount of heat energy required to raise the temperature of _______ of water through ______.
When a substance is heated, its temperature ______.
