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

6th Standard

    Reg.No. :
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Science

Time : 00:05:00 Hrs
Total Marks : 4

    Part A

    4 x 1 = 4
  1. When an object is heated, the molecules that make up the object

    (a)

    begin to move faster

    (b)

    lose energy

    (c)

    become heavier

    (d)

    become lighter

  2. The unit of heat is

    (a)

    newton

    (b)

    joule

    (c)

    volt

    (d)

    celsius

  3. One litre of water at 30o C is mixed with one litre of water at 50o C. The temperature of the mixture will be

    (a)

    80o C

    (b)

    More than 50°C but less than 80o C

    (c)

    20o C

    (d)

    around 40o C

  4. An iron ball at 50°C is dropped in a mug containing water at 50o C. The heat will

    (a)

    flow from iron ball to water.

    (b)

    not flow from iron ball to water or from water to iron ball.

    (c)

    flow from water to iron ball.

    (d)

    increase the temperature of both.

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