Thermal Physics English Medium Free Online Test 1 Mark Questions 2020-2021

10th Standard

    Reg.No. :
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Science

Time : 00:10:00 Hrs
Total Marks : 10

    Part A

    10 x 1 = 10
  1. If a substance is heated or cooled, the change in mass of that substance is

    (a)

    positive

    (b)

    negative

    (c)

    zero

    (d)

    none of the above

  2. Temperature is the average ______ of the molecules of a substance

    (a)

    difference in K.E and P.E

    (b)

    sum of P.E and K.E

    (c)

    difference in T.E and P.E

    (d)

    difference in K.E and T.E

  3. Which of the following has the fastest process of heat transfer?

    (a)

    Conduction

    (b)

    convection

    (c)

    Radiation

    (d)

    all the above

  4. In which process heat is transferred directly from one molecule to other?

    (a)

    conduction

    (b)

    convection

    (c)

    Radiation

    (d)

    all the above

  5. SI unit of temperature is

    (a)

    celsius

    (b)

    fahrenheit

    (c)

    kelvin

    (d)

    none

  6. Change in volume of a solid during heating is

    (a)

    Linear expansion

    (b)

    Superficial expansion

    (c)

    Cubical expansion

    (d)

    apparent expansion

  7. At constant temperature volume is inversely proportional to pressure of a gas is known as

    (a)

    Boyle's law

    (b)

    Charles

    (c)

    Avogadro

    (d)

    None

  8. If the atoms or molecules of a gas do not interact with each other, then the gas is said to be an ____

    (a)

    Inert gas

    (b)

    Ideal gas

    (c)

    Imperfect fas

    (d)

    Pure gas

  9. Absolute scale is also called as ______

    (a)

    Kelvin scale

    (b)

    Celsius scale

    (c)

    Centigrade scale

    (d)

    Fahrenheit scale

  10. Thermal conduction in metal is due to

    (a)

    Free electrons

    (b)

    bound electrons

    (c)

    Vibration of molecules

    (d)

    vibration of atoms

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