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Matter PHYSICS - Matter

ICSE - STD 8 - PHYSICS (ICSE - English Medium). 43 questions in this chapter.

Question types

Matter question types

43 questions across 8 question groups — pick any mix to generate a PHYSICS paper with step-by-step answer keys.

43
Questions
8
Question groups
5
Question types
Sample Questions

Matter 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
In convection currents,
  • A
    hot molecules rise up
  • B
    cold molecules sink down
  • C
    molecules actually move from their place
  • ✓
    all of these

Answer: D.

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Q 2MCQ1 Mark
The state of matter, in which the kinetic energy of the molecules is so small that they cannot overcome the intermolecular force of attraction between them, is $–$
  • ✓
    solid
  • B
    liquid
  • C
    gas
  • D
    plasma

Answer: A.

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Q 3MCQ1 Mark
How does the kinetic energy of a molecule in a substance change with a decrease in its temperature?
  • A
    It remains the same
  • B
    It increases
  • ✓
    It decreases
  • D
    It becomes twice

Answer: C.

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Q 4MCQ1 Mark
The temperature at which a solid changes into its liquid state is called
  • A
    boiling point
  • B
    freezing point
  • C
    condensation point
  • ✓
    melting point

Answer: D.

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Q 5MCQ1 Mark
The force of attraction between two similar types of molecules is called
  • A
    adhesion.
  • ✓
    cohesion,
  • C
    electrostatic force
  • D
    conduction.

Answer: B.

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Q 31TRUE / FALSE1 Mark
If the molecules in a substance have very large kinetic energies, which can completely overcome the intermolecular force of attraction between them, then the substance is a liquid.
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Q 33Match the following.5 Marks
 Solid to liquid  $a.$ least intermolecular spaces
 Liquid to gas  $b.$ least intermolecular forces
 Solid  $c.$ melting
 Gas  $d.$ mode of heat transfer
 Conduction  $e.$ evaporation
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