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9th Grade > Physics

MATTER PROPERTIES PHYSICS MCQs

Total Questions : 90 | Page 9 of 9 pages
Question 81. The weight of a metal bar in water is 0.42 N and in air is 0.48, its density would be
  1.    8000 kg m-3
  2.    5000 kg m-3
  3.    6000 kg m-3
  4.    7000 kg m-3
 Discuss Question
Answer: Option A. -> 8000 kg m-3
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 82. In Hooke's law, constant is equal to
  1.    stress × strain
  2.    strain/stress
  3.    stress/strain
  4.    stress + strain
 Discuss Question
Answer: Option C. -> stress/strain
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 83. The ratio of stress to strain is
  1.    1
  2.    0
  3.    3
  4.    constant
 Discuss Question
Answer: Option D. -> constant
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 84. In order to make an object float, its weight should be equal to
  1.    atmospheric pressure
  2.    up thrust acting on it
  3.    density
  4.    weight of liquid
 Discuss Question
Answer: Option B. -> up thrust acting on it
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 85. When an object is totally or partially immersed in a liquid, an up thrust acts on it equal to the weight of the liquid it displaces. This statement is called
  1.    Newton's principle
  2.    Archimedes principle
  3.    Einstein principle
  4.    Pascal's principle
 Discuss Question
Answer: Option B. -> Archimedes principle
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 86. Pressure applied at any point of a liquid enclosed in a container, is transmitted without loss to all other parts of the liquid is called
  1.    Newton's Law
  2.    Archimedes Law
  3.    Einstein Law
  4.    Pascal's Law
 Discuss Question
Answer: Option D. -> Pascal's Law
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 87. The object will sink if its weight is
  1.    greater than up thrust on it
  2.    less than up thrust acting on it
  3.    equal to up thrust acting on it
  4.    all of above
 Discuss Question
Answer: Option A. -> greater than up thrust on it
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 88. The approximate length of a glass tube to construct a water barometer should be
  1.    0.5 m
  2.    1 m
  3.    11 m
  4.    5 m
 Discuss Question
Answer: Option C. -> 11 m
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 89. The hydraulic press works on the principle of
  1.    Newton's law
  2.    Avogadro's law
  3.    Pascal's law
  4.    Charle's Law
 Discuss Question
Answer: Option C. -> Pascal's law
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 90. The molecules of matter are
  1.    continuously vibrating
  2.    remains stationary
  3.    can travel long distances
  4.    cannot overcome attractive forces
 Discuss Question
Answer: Option A. -> continuously vibrating
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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