Matric Part 1/9th Class Physics Chapter 8 Short Question Test With Answer for Unit 8 Thermal Properties of Matter

9th Class Physics Chapter 8 Online Preparation
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Online Short Questions For Chapter 8 "9th Class Physics English Medium Chapter 8 Preparation "

Try The Short Questions For 9th Class Physics English Medium Chapter 8 Preparation

  • Total Questions10

  • Available Sets11

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Physics (New Book) - 9th Class Physics English Medium Chapter 8 Preparation

Question # 1

Which flower is used as natural thermometer

  • Ans 1: The crocus flower is a natural thermometer It opens when temperature is precisely 23 and closes Ehen temperature drops
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Prepare Complete Set Wise Questions For Chapter 8 "9th Class Physics English Medium Chapter 8 Preparation "

9th Class Physics English Medium Chapter 8 Preparation - Set 1

Question # 1

Which flower is used as natural thermometer

  • Ans 1: The crocus flower is a natural thermometer It opens when temperature is precisely 23 and closes Ehen temperature drops
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9th Class Physics English Medium Chapter 8 Preparation - Set 2

Question # 1

Write the use and range of chemical thermometer?

  • Ans 1: A clinical thermometer is used to measure the temperature of human body.
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9th Class Physics English Medium Chapter 8 Preparation - Set 3

Question # 1

Why does heat flow from hot body to cold body

  • Ans 1: Heat flows from hot body to cold body due to difference of temperature between them . The temperature of hot body decreases because it loses heat. Cold body gains this heat and its temperature increases. The transfer of heat energy continues till both the bodies have same temperature.
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9th Class Physics English Medium Chapter 8 Preparation - Set 4

Question # 1

What are the factors on which internal energy depends upon

  • Ans 1: Internal energy of a body depends upon
    Mass of body
    Kinetic energyh of a body
    Potential energy of a body
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9th Class Physics English Medium Chapter 8 Preparation - Set 5

Question # 1

Define coefficient of linear thermal expansion.

  • Ans 1: Coefficient of linear thermal expansion can be defined as fraction increase in length per kelvin rise in temperature. Unit; Its unit is K-1
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9th Class Physics English Medium Chapter 8 Preparation - Set 6

Question # 1

Why gaps are left in railways tracks

  • Ans 1: Gaps are left in railway tracks to compensate thermal expansion during hot season Because in summer railway tracks expand due to increase in temperature.
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9th Class Physics English Medium Chapter 8 Preparation - Set 7

Question # 1

Define Lower fixed point.

  • Ans 1: Lower fixed point is marked to show position of liquid in thermometer when it is placed in ice.
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9th Class Physics English Medium Chapter 8 Preparation - Set 8

Question # 1

Differentiate between freezing and melting point

  • Ans 1: Freezing point: In liquids the point of temperature which liquids starts to become solids
    Freezing point is that point which liquids starts to become solids
    Water starts to become ice at temperature.
  • Ans 2: Melting point: In solids the point of temperature which solids starts to become liquids
    Melting point is that point which solid starts of become water at temperature of
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9th Class Physics English Medium Chapter 8 Preparation - Set 9

Question # 1

Write two charactersticws of the liquid used in thermometer

  • Ans 1: Common thermometers are generally made using some suitable liquids as thermometric material A thermometric liquid should have following characteristics
    It should be visible
    It should have same heat temperature
    It should have low freezing point and high boiling point
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9th Class Physics English Medium Chapter 8 Preparation - Set 10

Question # 1

Why gaps are left in railway tracks.

  • Ans 1: Gaps are left in railway tracks to compensate thermal expansion during hot season. Because in summer railway tracks expand due to increase inteeperature.
Submit

9th Class Physics English Medium Chapter 8 Preparation - Set 11

Question # 1

What are Kelvin scale and Fahrenheit scale

  • Ans 1: Fahrenheit scale: On Fahrenheit scale, the interval between lower and upper fixed points is divided into 180 equal parts Its lower and upper fixed points are and respectively
  • Ans 2: Kelvin scale: In Kelvin scle the interval between the lover and upper fixed point on this scale corresponds to 273 K and upper fixed point is referred as 373 The zero on this scale is called the absolute zero and is equal to 273c
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8th Unit

9th class Physics Chapter 8 (English Medium)

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