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9th Grade > Physics

THERMAL PROPERTIES OF MATTER MCQs

Total Questions : 107 | Page 5 of 11 pages
Question 41. The evaporation from the surface of any liquid depends on
  1.    temperature
  2.    wind
  3.    nature of liquid
  4.    all of above
 Discuss Question
Answer: Option D. -> all of above
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 42. The normal human body's temperature is 98.6 ° F. In the Celsius scale, it is
  1.    30 °C
  2.    37 °C
  3.    42 °C
  4.    32 °C
 Discuss Question
Answer: Option B. -> 37 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 43. The boiling point of water is
  1.    323 °C
  2.    100 °C
  3.    273 °C
  4.    0 °C
 Discuss Question
Answer: Option A. -> 323 °C
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 44. In central heating systems, to carry thermal energy through pipes from the boiler to radiators we use
  1.    hot water
  2.    cold water
  3.    mercury
  4.    carbonates
 Discuss Question
Answer: Option A. -> hot water
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 45. The temperature at which solid starts to melt is called
  1.    freezing point
  2.    boiling point
  3.    fusion point
  4.    melting point
 Discuss Question
Answer: Option C. -> fusion point
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 46. Greater number of molecules has the chance to escape from the surface if its area is
  1.    smaller
  2.    larger
  3.    deep
  4.    shallow
 Discuss Question
Answer: Option B. -> larger
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 47. The most suitable thermometric material is
  1.    francium
  2.    francium
  3.    water
  4.    water
 Discuss Question
Answer: Option D. -> water
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 48. On the Kelvin scale, the upper fixed point is marked as
  1.    180 K
  2.    273 K
  3.    373 K
  4.    0 K
 Discuss Question
Answer: Option C. -> 373 K
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 49. The substance which has the greatest average kinetic energy is
  1.    steel
  2.    copper
  3.    water
  4.    lead
 Discuss Question
Answer: Option C. -> water
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!
Question 50. In SI units, the unit of temperature is
  1.    kelvin(K)
  2.    omega(ω)
  3.    pi(π)
  4.    newton(N)
 Discuss Question
Answer: Option A. -> kelvin(K)
NO EXPLANATION IS AVAILABLE FOR THIS QUESTION!

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