MEDIUM
Earn 100

Define the term thermal contact.

Important Questions on Heat

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Science>Physics>Heat>Flow of Heat
One litre of water at 20 ℃  is mixed with the same volume of water at 40 ℃. The temperature of the mixture will be
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Science>Physics>Heat>Flow of Heat
Heat transfers from
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Science>Physics>Heat>Flow of Heat

Which of the following materials are the bad conductors of heat?

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Science>Physics>Heat>Flow of Heat
If you touch a cold object, then
EASY
Science>Physics>Heat>Flow of Heat
An iron ball at 40°C is dropped in a mug containing water at 40°C. The heat will :
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Science>Physics>Heat>Flow of Heat
Which of the following statements is not correct?
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Science>Physics>Heat>Flow of Heat
Heat energy flows from
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Science>Physics>Heat>Flow of Heat
Two bodies are said to be in the state of thermal _____ if there is no transfer of heat taking place.
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Science>Physics>Heat>Flow of Heat
On absorbing heat the particles of matter :
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Science>Physics>Heat>Flow of Heat

Which of the following are the examples of Insulators?

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Science>Physics>Heat>Flow of Heat
An iron ball at 40 ℃ is dropped in a mug containing water at 40 ℃. The heat will _____.
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Science>Physics>Heat>Flow of Heat
Which among the following is not an undesirable effects caused by heat?
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Science>Physics>Heat>Flow of Heat
When a blacksmith heats an iron rod, what happens to the volume and density of that iron rod?
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Science>Physics>Heat>Flow of Heat
If you touch a cold object, then 
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Science>Physics>Heat>Flow of Heat
The _____ of a body is a measure of hotness or coldness of a body.
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Science>Physics>Heat>Flow of Heat
When you touch a cube of ice, it feels cold because
MEDIUM
Science>Physics>Heat>Flow of Heat
The molecules occupy more space because of their increase in _____ of vibrations.
EASY
Science>Physics>Heat>Flow of Heat

Wool is a _____ conductor  of heat.

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Science>Physics>Heat>Flow of Heat
A metal rod is heated to a temperature of 200 °C. It is placed in a room at 30 °C. At which temperature, the rod will stop radiating heat?
EASY
Science>Physics>Heat>Flow of Heat
One litre of water at 30 ℃ is mixed with one litre of water at 50 ℃. The temperature of the mixture will be