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9th Grade > Physics

THERMAL PROPERTIES OF MATTER MCQs

Total Questions : 107 | Page 10 of 11 pages
Question 91. The changing of liquid into vapors without heating is called
  1.    freezing
  2.    steaming
  3.    evaporation
  4.    melting
 Discuss Question
Answer: Option C. -> evaporation
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 92. The liquid which evaporates more quickly is
  1.    spirit
  2.    water
  3.    grease
  4.    oil
 Discuss Question
Answer: Option A. -> spirit
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 93. Substance that show a change with temperature can be used as a
  1.    energy observer
  2.    plasma material
  3.    capacity calculator
  4.    thermometric material
 Discuss Question
Answer: Option D. -> thermometric material
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 94. Mercury boils at
  1.    357 °C
  2.    375 °C
  3.    350 °C
  4.    367 °C
 Discuss Question
Answer: Option B. -> 375 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 95. The change in length of a solid is directly proportional to its
  1.    original area
  2.    original width
  3.    original length
  4.    original shape
 Discuss Question
Answer: Option C. -> original length
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 96. The absolute zero is equal to
  1.    -273 °C
  2.    -280 °C
  3.    0 °C
  4.    -100 °C
 Discuss Question
Answer: Option A. -> -273 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 97. The quantity of heat that changes unit mass of a liquid completely into gas at its boiling point without any change in its temperature is called its
  1.    latent heat of vaporization
  2.    latent heat of fusion latent heat of energy
  3.    latent heat of pressure
  4.    None of these
 Discuss Question
Answer: Option A. -> latent heat of vaporization
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 98. Thermal expansion results in
  1.    increase in length
  2.    increase in breadth
  3.    increase in thickness
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 99. The sum of kinetic energy and potential energy associated with the atoms, particles and molecules of a body is called its
  1.    negative energy
  2.    external energy
  3.    internal energy
  4.    constant energy
 Discuss Question
Answer: Option C. -> internal energy
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 100. The most suitable state for thermometric material is
  1.    solid
  2.    plasma
  3.    liquid
  4.    gas
 Discuss Question
Answer: Option C. -> liquid
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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