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Heat is the transfer of energy between t...

Heat is the transfer of energy between two objects with different temperature.

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What is transfer of heat?

Transfer of energy between any two bodies due to difference in temperature is called __________.

Assertion (A) : Heat energy is transferred from one body to another due to a temperature difference between them. Reason (R) : Heating a substance causes a rise in temperature.

Cooling is transfer of heat energy from the body at higher temperature to lower temperature.

One calorie is the amount of heat energy required to raise the temperature of __________ of water through ___________.

Assertion: The process of transferring heat energy from lower temperature to higher temperature is called cooling. Reason : The mass of the system is not altered when it is cooled.

SURA PUBLICATION-Heat-Example
  1. An iron ball requires 1000 J of heat to raise its temperature by 20^@C...

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  2. The heat capacity of the vessel of mass 100 kg is 8000 J//^@C. Find it...

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  3. Heat is the transfer of energy between two objects with different temp...

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  4. When ice changes into a liquid, it absorbs energy.

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  5. Heat energy flows from a body at low temperature to a body at higher t...

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  6. J// Kg ^@C is the unit of specific heat capacity.

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  7. Conductors have generally high specific head capactities and insulator...

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  8. Temperature is a measure of total kinetic energy of the particles in a...

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  9. When a liquid evaporates. it gives off energy.

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  10. when a liquid boils, energy is absorbed.

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  11. What has the lowest specific heat capacity.

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  12. While a substance is undergoin a change of state, the temperature of t...

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  13. In summer, we prefer light- coloured clothes and in winter we usually ...

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  14. The transfer of heat by radiation does not require any medium.

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  15. Metals like copper, heat by radiation does not require any medium.

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  16. in thermos flask, the bacuum between the two walls prevents heat from ...

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  17. Thermostat is a device can measure the heat capacity of the liquid in ...

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  18. Assertion and Reason. Mark the correct choice as:Assertion : When a ve...

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  19. Assertion and Reason. Mark the correct choice as:Assertion :Radiation ...

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  20. Assertion and Reason. Mark the correct choice as:Assertion:Temperature...

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