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Heat Test - 17

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Heat Test - 17
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  • Question 1
    1 / -0
    Select the odd one out w.r.t. conduction of heat (wood, paper, plastic, silver)
    Solution
    Silver is a good conductor of heat rest are bad conductors of heat.
  • Question 2
    1 / -0
    Select the odd one out with respect to the conduction of heat.
    Solution
    The materials which allow heat to pass through them easily are called conductors of heat. For example, gold, copper, and mercury.
    The materials which do not allow heat to pass through them easily are called insulators. For example, cork.

  • Question 3
    1 / -0
    Select the odd one out w.r.t. conduction of heat.
    Solution
    Asbestos is an insulator and rest are metals which are good conductors of heat.
  • Question 4
    1 / -0
    Good conductor of heat is
  • Question 5
    1 / -0
    If we keep pop corn in a pressure cooker on a flame, heat is transferred from flame to corn by :
    Solution
    The direct contact of cooker and corn is an example of conduction. The transfer of heat takes place through the metallic bottom of the pressure cooker ans reaches the corn. 

  • Question 6
    1 / -0
    Bad conductor of heat is
    Solution
    Copper, steel, and silver, being metals are good conductors of heat. Non-metals are bad conductors of heat. For example, wood, paper, air, and cloth are poor conductors of heat.
  • Question 7
    1 / -0
    Good conductor of heat is
    Solution
    Materials that allow heat to pass through them easily are called good conductors of heat. Metals like copper and aluminium are good conductors of heat.
    Materials that do not allow heat to pass through them easily are called bad conductors of heat. Non -Metals like Phosphorus,sulphur,mica and plastic ,rubber are bad conductors of heat.

  • Question 8
    1 / -0
    The process of transfer of heat by the movement of particles of medium from one place to another is called
    Solution
    Process of heat transfer through movement of particles of medium from one place to another is convection.
  • Question 9
    1 / -0
    The water at the surface of swimming pool or lake being warmer due to
    Solution
    The surface water of a swimming pool or a lake is exposed to the sun. It receives sunlight in the form of radiation. This radiation supplies heat to the surface water and hence it becomes warm.
  • Question 10
    1 / -0
    Good insulator of heat is
    Solution

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