T2 - Heat and Temperature English Medium Free Online Test 1 Mark Questions 2020-2021

7th Standard

    Reg.No. :
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Science

Time : 00:05:00 Hrs
Total Marks : 5

    Part A

    5 x 1 = 5
  1. International unit of measuring temperature is __________

    (a)

    Kelvin

    (b)

    Fahrenheit

    (c)

    Celsius

    (d)

    Joule

  2. In thermometer when bulb comes in contact with hot object, liquid inside it

    (a)

    expands

    (b)

    contracts

    (c)

    remains same

    (d)

    none of above

  3. The body temperature of a healthy man is;

    (a)

    00C

    (b)

    370C

    (c)

    980C

    (d)

    1000C

  4. Mercury is often used in laboratory thermometers because it ___________

    (a)

    is a harmless liquid

    (b)

    is silvery in colour and is attractive in appearance

    (c)

    Expands uniformly

    (d)

    is a low cost liquid

  5. Which of the following temperature conversions is incorrect
     K ( Kelvin) = 0C ( Celsius) + 273.15

    (a)
    0C K
    -273.15 0
    (b)
    0C K
    -123. +150.15
    (c)
    0C K
    + 127. + 400.15
    (d)
    0C K
    + 450 + 733.15

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