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PHYSICS MCQ

Physical Quantities and Measurement · ICSE STD 8 (ICSE - English Medium). 8 questions.

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8 questions · timed · auto-graded

MCQ 11 Mark
The weight of a body is more than the buoyant force experienced by it, due to a liquid. The body will
  • ✓
    sink
  • B
    float with some part outside the liquid
  • C
    float just below the surface of liquid
  • D
    float with whole of its volume above the surafce of liquid
Answer
Correct option: A.
sink
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MCQ 21 Mark
A piece of wood floats on water. The buoyant force on wood will be
  • A
    zero
  • B
    more than the weight of the wood piece
  • ✓
    equal to the weight of wood piece
  • D
    less thsn the weight of wood piece
Answer
Correct option: C.
equal to the weight of wood piece
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MCQ 31 Mark
The correct statement is
  • A
    The buoyant force on a body is equal to the volume of the liquid displaced by it '
  • B
    The buoyant force on a body is equal to the volume of the body
  • ✓
    The buoyant force on a body is equal to the weight of the liquid displaced by it
  • D
    The buoyant force on a body is always equal to the weight of the body.
Answer
Correct option: C.
The buoyant force on a body is equal to the weight of the liquid displaced by it
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MCQ 41 Mark
A density bottle has a marking $25 \ ml$ on it. It means that:
  • A
    the mass of density bottle is $25 g$
  • ✓
    the density bottle will store $25 \ ml$ of any liquid in it
  • C
    the density bottle will store $25 \ ml$ of water, but more volume of liquid denser than water.
  • D
    the density bottle will store $25 \ ml$ of water, but more volume of a liquid lighter than water.
Answer
Correct option: B.
the density bottle will store $25 \ ml$ of any liquid in it
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MCQ 51 Mark
The density of aluminium is $2.7 g \ cm^3$ and that of brass $8.4 g \ cm^3.$ The correct statement is
  • A
    Equal masses of aluminium and brass have equal volumes
  • ✓
    The mass of a certain volume of brass is more than the mass of equal volume of aluminium.
  • C
    The volume of a certain mass of brass is more than the volume of equal mass of aluminium.
  • D
    Equal volumes of aluminium and brass have equal masses.
Answer
Correct option: B.
The mass of a certain volume of brass is more than the mass of equal volume of aluminium.
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MCQ 61 Mark
A block of wood of density $0.8 g \ cm^3$ has a volume of $60 \ cm^3. $ The mass of block is
  • A
    $60.8 g$
  • B
    $75 g$
  • ✓
    $48 g$
  • D
    $0.013 g$
Answer
Correct option: C.
$48 g$
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MCQ 71 Mark
The relative density of alcohol is $0.8$. Its density is
  • A
    $0.8$
  • ✓
    $800 \ kg\  nr3$
  • C
    $800 g \ cm -3$
  • D
    $0.8 \ kg\  m -3$
Answer
Correct option: B.
$800 \ kg\  nr3$
$800 \ kg\  nr3$
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MCQ 81 Mark
The correct relation is
  • A
    Density $=$ Mass $\times$ Volume
  • ✓
    Mass $=$ Density $\times$ Volume
  • C
    Volume $=$ Density $\times$ Mass
  • D
    Density $=$ Mass $+$ Volume
Answer
Correct option: B.
Mass $=$ Density $\times$ Volume
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MCQ - PHYSICS STD 8 Questions - Vidyadip