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T2 CH1 Heat Science - T2 CH1 Heat

Tamil Nadu Board - STD 6 - Science (Tamil - English Medium). 46 questions in this chapter.

Question types

T2 CH1 Heat question types

46 questions across 7 question groups — pick any mix to generate a Science paper with step-by-step answer keys.

46
Questions
7
Question groups
5
Question types
Sample Questions

T2 CH1 Heat questions

One sample from each question group in this chapter. Select any group above to see the full set with answer keys.

Q 1MCQ1 Mark
An iron ball at $50^{\circ} \mathrm{C}$ is dropped in a mug containing water at $50^{\circ} \mathrm{C}$. The heat will
  • A
    flow from iron ball to water.
  • ✓
    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.

Answer: B.

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Q 2MCQ1 Mark
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
    $80^{\circ} \mathrm{C}$
  • B
    More than $50^{\circ} \mathrm{C}$ but less than $80^{\circ} \mathrm{C}$
  • C
    $20^{\circ} \mathrm{C}$
  • ✓
    around $40^{\circ} \mathrm{C}$

Answer: D.

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Q 4MCQ1 Mark
When an object is heated, the molecules that make up the object
  • ✓
    begin to move faster
  • B
    lose energy
  • C
    lose energy
  • D
    become lighter

Answer: A.

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Q 22Match The Following5 Marks
1Average kinetic energy of moleculei.Borosilicate
2Pyrex glassii.Railway Tracks
3Thermal expansioniii.Burning
4Heat transfer SamacheerKalvi.Guideiv.Temperature
5Kerosenev.20^(@)C to 10^(@)C
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Q 23[ 2 Marks Questions ]2 Marks
If you heat a circular disk with a hole, what change do you expect in the diameter of the hole? Remember that the effect of heating increases the separation between any pair of particles.
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Q 24[ 2 Marks Questions ]2 Marks
When a window is accidentally left open on a winter night, will you feel uncomfortable because the cold is getting in, or because the heat is escaping from the room?
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