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

How does heating affect the motion of molecules of a gas

  • Ans 1: When a gas is heated, the velocityh of the gas molecules increased due to this reason the motionn of molecules of molecules increased which increases the kinetic energy internal energy and temperature of a gas molecules.
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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

How does heating affect the motion of molecules of a gas

  • Ans 1: When a gas is heated, the velocityh of the gas molecules increased due to this reason the motionn of molecules of molecules increased which increases the kinetic energy internal energy and temperature of a gas molecules.
Submit

9th Class Physics English Medium Chapter 8 Preparation - Set 2

Question # 1

Define latent heat of vaporization?

  • Ans 1: The quantity of heat the changes unit mass of a liquid completely into gas at its boiling point without any change in its temperature is called latent heat of vaporization.
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9th Class Physics English Medium Chapter 8 Preparation - Set 3

Question # 1

Write formula for heat capacity.

  • Ans 1: Formula for heat capacity is. Heat capacity = mc
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9th Class Physics English Medium Chapter 8 Preparation - Set 4

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 5

Question # 1

What is absolute zero

  • Ans 1: Absolute zero: Absolute zero is equal to 273c The change in temperature is equal in =
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9th Class Physics English Medium Chapter 8 Preparation - Set 6

Question # 1

Give the names of factors on which evaporation of a liquid depends

  • Ans 1: The rate of evaporation is affected by following factors
    Temperature, Surface area, wind , nature of liquid
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9th Class Physics English Medium Chapter 8 Preparation - Set 7

Question # 1

Does water and spirit evaporate at the same rate

  • Ans 1: Evaporation rate of different liquids are different Water and spirit evaporate at different temperature. Form example put a few drops of spirit on hand Drops of spirit will evaporate quickly and the same action will not happen with water The reason is this that the boiling point of spirit lesser than the boiling point of water That is why both spirit water do not evaporate at the same rate
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9th Class Physics English Medium Chapter 8 Preparation - Set 8

Question # 1

What is thermometer?

  • Ans 1: A device which is used to measure the temperature of a body is called thermometer.
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9th Class Physics English Medium Chapter 8 Preparation - Set 9

Question # 1

What is meant by bimetallic strip

  • Ans 1: Bimetallic strip: Bimetallic strip is strip which is consists of two different metals, usually brass and iron.
  • Ans 2: Uses of bimetal strip: Bimetal strips are used in thermometers to measure temperatures especial in furnaces and ovens.
    Bimetal strips are used in thermostats to control the temperature of heater coil in an electric iron.
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9th Class Physics English Medium Chapter 8 Preparation - Set 10

Question # 1

Write a note on centigrade scale.

  • Ans 1: On centigrade scale the interval between lower and upper fixed points is divided into 100 equal parts. i. Lower fixed point is 0 oC ii. Upper fiexed points is 100 oC
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9th Class Physics English Medium Chapter 8 Preparation - Set 11

Question # 1

Give two uses of cooling affect by evaporation.

  • Ans 1: Evaporation of perspiration helps to cool our bodies Cooling is produced in refrigerators by evaporation of liquefied gas.
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8th Unit

9th class Physics Chapter 8 (English Medium)

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