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PHYSICS MCQ

Physical Quantities and Measurement · ICSE STD 8 (ICSE - English Medium). 10 questions.

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10 questions · timed · auto-graded

MCQ 11 Mark
Which of the following natural phenomena takes place due to convection currents?
  • A
    land breeze
  • B
    sea breeze
  • C
    westerlies
  • ✓
    ail of these
Answer
Correct option: D.
ail of these
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MCQ 21 Mark
In convection currents, hot air moves $–$
  • ✓
    upwards.
  • B
    downwards.
  • C
    to the left.
  • D
    to the right.
Answer
Correct option: A.
upwards.
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MCQ 41 Mark
For a given rise in temperature, the increase in density is maximum in case of $–$
  • ✓
    gases.
  • B
    liquids,
  • C
    solids.
  • D
    none of these
Answer
Correct option: A.
gases.
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MCQ 51 Mark
The markings on the hull of the ship that indicate the level to which the ship can be submerged in sea water are called $–$
  • A
    horizontal lines.
  • B
    vertical lines,
  • C
    skew lines.
  • D
    Plimsoll lines.
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MCQ 61 Mark
Which of the following liquids will float on water $($density $= 1 g/mL)$ ?
  • A
    sea water $($density $= 1.025 \ g/mL)$
  • B
    honey $($density $= 1.42 \ g/mL)$
  • ✓
    gasoline $($density $= 0.71 \ g/mL)$
  • D
    glycerine $($density $= 1.26 \ g/mL)$
Answer
Correct option: C.
gasoline $($density $= 0.71 \ g/mL)$
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MCQ 71 Mark
Which of the following substances has the greatest density?
  • ✓
    aluminium
  • B
    water
  • C
    oxygen
  • D
    air
Answer
Correct option: A.
aluminium
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MCQ 81 Mark
A device used to measure the relative density of a liquid is known as $–$
  • A
    thermometer.
  • ✓
    hydrometer
  • C
    barometer
  • D
    spring balance
Answer
Correct option: B.
hydrometer
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MCQ 91 Mark
Relative density is also known as $–$
  • A
    density.
  • B
    gravity
  • ✓
    specific gravity
  • D
    mass
Answer
Correct option: C.
specific gravity
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MCQ 101 Mark
An irregular solid which when completely immersed in water displaces $10\  mL$ of water. The volume of the solid is $–$
  • A
    $5\  mL$
  • ✓
    $10\  mL$
  • C
    $15\  mL$
  • D
    $20\  mL$
Answer
Correct option: B.
$10\  mL$
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