Practice test

Heat, temperature and thermodynamics - Test Set 7

Review 20 exam-focused questions with detailed explanations, then start the interactive test when you are ready.

20 questions

Questions and explanations

  1. Question 1

    Earth is a ______.
    1. Good reflector of heat
    2. Bad absorber of heat
    3. Good absorber and good radiator of heat
    4. Bad absorber and bad radiator of heat.
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  2. Question 2

    Why are the handles of metallic teapots made of wood?
    1. Wood is a bad conductor of heat
    2. It does not cause electric shocks
    3. It makes containers look beautiful
    4. It makes containers look clean
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  3. Question 3

    Why two thin shirts can keep us warmer than a single thick shirt in winters?
    1. Two shirt become thicker so present the permission of heat
    2. Layer of shirt acts as a conductor of heat between two shirts
    3. Layer of air acts as an insulating medium between two shirt
    4. Radiation of heat doesn’t take place.
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  4. Question 4

    Energy travels from sun to earth by which of the following method
    1. Condiction
    2. Insolation
    3. Radiation
    4. Modulation
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  5. Question 5

    The characteristics invalid for heat radiation is that it travels
    1. In a straight line
    2. In all directions
    3. With the speed of light
    4. Heating the medium through which it passes.
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  6. Question 6

    Which of the following is a good conductor of heat but bad conductor of electricity?
    1. Mica
    2. Asbestos
    3. Celluloid
    4. Paraffin wax
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  7. Question 7

    Which of the following has the largest value of specific heat.
    1. Glass
    2. Copper
    3. Lead
    4. Water
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  8. Question 8

    When hot water is sprinkled on a hotter glass tumbler it breaks because
    1. Glass suddenly expands
    2. Glass suddenly contracts
    3. Water evaporates
    4. Glass reacts chemically with water
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  9. Question 9

    Which one of the following is an insulator?
    1. Copper
    2. Mercury
    3. Wood
    4. Aluminium
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  10. Question 10

    Heat is transmitted from higher temperature to lower temperature through the actual motion of the molecules in
    1. Conduction
    2. Convection
    3. Radiation
    4. Both conduction and convection
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  11. Question 11

    Which of the following are methods of heat transfer
    1. Convection
    2. Evaporation
    3. Revolution
    4. Thermal Expansion
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  12. Question 12

    Which of the following devices can be used to detect radiant heat
    1. Liquid thermometer
    2. Six's maximum and minimum thermometer
    3. Constant volume air thermometer
    4. Thermopile
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  13. Question 13

    Why white clothes keep you cooler as compared to black clothes?
    1. They absorb whole of the light
    2. They reflect the whole light
    3. Penetration of light does not occur
    4. Make the sunlight completely cool.
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  14. Question 14

    The unit of Planck’s constant is
    1. Js
    2. Js⁻¹
    3. Js⁻²
    4. Js²
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  15. Question 15

    The dimensional formula of Planck’s constant (h) contains the dimension of
    1. Linear Motion
    2. Angular Momentum
    3. Energy
    4. Force
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  16. Question 16

    When hot liquid is poured into a thick glass tumbler it cracks because glass:
    1. Is a bad conductor of heat so only inner surface expands
    2. Has high temperature coefficient of expansion
    3. Has very low specific heat
    4. Has very low temperature coefficient of expansion.
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  17. Question 17

    A real gas can act as ideal gas at
    1. Low pressure and High temperature
    2. High pressure and Low temperature
    3. Low temperature and High pressure
    4. High temperature and Low pressure
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  18. Question 18

    A white and smooth surface is
    1. Good absorber and Good reflector of heat
    2. Bad absorber and Good reflector of heat
    3. Good absorber and Bad reflector of heat
    4. Bad absorber and Bad reflector of heat
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  19. Question 19

    A cycle type bursts suddenly. This represents an
    1. Isothermal process
    2. Adiabatic process
    3. Isochoric process
    4. Isobaric process
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  20. Question 20

    The wavelength at which the peak of intensity of black body radiation occurs.
    1. Increases with increase in temperature
    2. Decreases with increase in temperature
    3. Is the same at all temperature
    4. Does not follow any pattern as temperature changes
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