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PHYSICS MCQ

Heat Transfer · ICSE STD 8 (ICSE - English Medium). 7 questions.

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7 questions · timed · auto-graded

MCQ 11 Mark
The type of thermal expansion that takes place in gases is
  • A
    linear expansion.
  • B
    superficial expansion,
  • ✓
    cubical expansion.
  • D
    all of these
Answer
Correct option: C.
cubical expansion.
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MCQ 21 Mark
The factors on which linear expansion depend on are
  • A
    original length of the solid.
  • B
    increase in the temperature of the solid.
  • C
    nature of the solid.
  • ✓
    all of these
Answer
Correct option: D.
all of these
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MCQ 31 Mark
The liquid that expands the minimum on heating is
  • A
    benzene.
  • ✓
    water.
  • C
    alcohol.
  • D
    ether.
Answer
Correct option: B.
water.
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MCQ 41 Mark
There are four iron rods $R_1, R_2, R_3$ and $R_4$ of the same dimensions. The temperature of $R_1$ is raised to $500^\circ C,$ that of $R_2$ to $250^\circ C,$ that of $R_3$ to $1000^\circ C$ and that of $R_4$ to $800^\circ C$. Which rod will have the maximum linear expansion?
  • A
    $R_1$
  • B
    $R_2$
  • ✓
    $R_3$
  • D
    $R_4$
Answer
Correct option: C.
$R_3$
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MCQ 51 Mark
The length of an iron rod increases from $10\  m$ to $11\ m$, when kept over a burner flame. This increase in length is due to
  • A
    cubical expansion.
  • ✓
    linear expansion.
  • C
    superficial expansion.
  • D
    solidification.
Answer
Correct option: B.
linear expansion.
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MCQ 71 Mark
The process that occurs when water changes into water vapours at $30^\circ C$ is called
  • A
    cubical expansion
  • B
    boiling
  • ✓
    evaporation
  • D
    superficial expansion
Answer
Correct option: C.
evaporation
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MCQ - PHYSICS STD 8 Questions - Vidyadip