HomeLearn Fast select Course
Change UnitChange SubjectLast Menu
ICSE-VIII-Physics

02: Physical Quantities and Measurement Class 8 Physics

with Solutions -

Note: Please signup/signin free to get personalized experience.

Note: Please signup/signin free to get personalized experience.

10 minutes can boost your percentage by 10%

Note: Please signup/signin free to get personalized experience.

  
  • #
  • #
    Section : A
    Objective Questions
  • Qstn #1
    Write true or false for each statement
  • #1-a
    Equal volumes of the two different substances have equal masses.
    Ans :
    False.
    Equal volumes of the two different substances have different masses.
  • #1-b
    The density of a piece of brass will change by changing its size or shape.
    Ans :
    False.
  • #1-c
    The density of a liquid decreases with increase in its temperature.
    Ans :
    True.
  • #1-d
    Relative density of water is 1.0.
    Ans :
    True.
  • #1-e
    Relative density of a substance is expressed in g cm-3.
    Ans :
    False.
    Relative density of a substance has no units.
  • #1-f
    When a body is immersed in a liquid, the buoyant force experienced by the body is equal to the volume of the liquid displaced by it.
    Ans :
    False.
    The buoyant force is equal to the weight of the liquid displaced by the immersed part of body.
  • #1-g
    A body experiences the same buoyant force while floating in watr or alcohol.
    Ans :
    True.
  • #1-h
    A body experiences the same buoyant force when it floats or sinks in water.
    Ans :
    False.
  • #1-i
    A body floats in a liquid when its weight becomes equal to the weight of the liquid displaced by its submerged part.
    Ans :
    True.
  • #1-j
    A body while floating, sinks deeper in a liquid of low density than in a liquid of high density.
    Ans :
    True.
  • #2-a
    1 kg is the mass of ____ ml of water at 4ËšC.
    Ans : 1 kg is the mass of 1000 ml of water at 4ËšC.
next page