T2 - Heat and Temperature English Medium Free Online Test 1 Mark Questions with Answer Key 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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