Physics 9th Class English Medium Chapter 8 Thermal (Properties of Matter) Short Questions Preparation with Answers

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 "

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

Question # 1

Which flower is used as natrual thermometer?

Ans 1: The crocus flower is a natural thermometer. It opens when temperature is precisely 23 oC and closes when temperature drops.

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Prepare Complete Set Wise Questions For Chapter 8 "9th Class Physics English Medium Chapter 8 Preparation "

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Set 2

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Set 3

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Set 4

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Set 5

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Set 6

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Set 7

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Set 8

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Set 9

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Set 10

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Set 11

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

Question # 1

Which flower is used as natrual thermometer?

Ans 1: The crocus flower is a natural thermometer. It opens when temperature is precisely 23 oC and closes when temperature drops.

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

Question # 1

Does water nd spirit evaporate at same rate

Ans 1: As nature of liquid affect evaporation So answer is no rate of evaporation for spirit is greater than water due to its weak intermolecular forces. While rate of evaporation for water is relatively slow due to strong hydrogen bonding

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9th Class Physics English Medium Chapter 8 Preparation - Set 3

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 4

Question # 1

Describe relation between heat capacity and quantity of substance

Ans 1: Relation: Heat Capacity mass
Larger is the quantity of a substance larger will be its heat capacity
Ans 2: Example: Heat capacity of 1kg water is 4200jkg then heat capacity of 5kg water is 21000jkg

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9th Class Physics English Medium Chapter 8 Preparation - Set 5

Question # 1

What is meant by linear thermal expansion.

Ans 1: If length of solid changes with change in temperature is called linear thermal expansion.

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9th Class Physics English Medium Chapter 8 Preparation - Set 6

Question # 1

How wind affects evaporation

Ans 1: Wind blowing over the surface of a liquid sweeps away the liquid molecules that have just escaped out it thus stops these molecules from returning to the liquid which increases vaporization

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9th Class Physics English Medium Chapter 8 Preparation - Set 7

Question # 1

How specific heat differs from heat capacity

Ans 1: Specific heat: Specific heat of substance is amount of heat require to raise temperature of 1 kg of threat substances mass of that substance through 1k
Ans 2: Heat Capacity: Heat capacity of a body is quantity of thermal energy absorbed by it for one Kelvin rise in temperature.
Its unit is jk

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

Question # 1

Define thermal expansion

Ans 1: Thermal expansion: Expansion due to heating is called thermal expension
Ans 2: Explanation: Most of the substances solids liquids and gases expand on heating and contract on coaling. The Kinetic energy of the molecules of an object depends on its temperature. The molecules of a solid vibrate with larger amplitude at high temperature than at low temperature.

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

Question # 1

Write the names of types of thermal volume pension for liquids

Ans 1: There are two types of thermal volume
Appearing volume expansion, Real volume expansion.

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9th Class Physics English Medium Chapter 8 Preparation - Set 10

Question # 1

Why temperature of lnd near water remains moderate

Ans 1: The presence of large water reservoirs such as lakes and seas keep the climate moderate due to large heat capacity of their reservoirs.
Ans 2: Example: Heat capacity of water

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

Question # 1

Define volume thermal expansion and temperature co-efficient of volume expansion

Ans 1: Volume thermal expansion: Solid material expend in volume when heated. This process is called volume thermal expansion.
Ans 2: Co-efficient of volumetric thermal expansion: The fractional change in the volume of a substance per kelvin change in temperature.
Ans 3: Unit: SI unit of volume expansion is k
The co-efficient if volumetric thermal expansion

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9th class Physics Chapter 8 (English Medium)

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

9th Class English Medium Subjects

9th Class Urdu Medium Subjects

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

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

Which flower is used as natrual thermometer?

Define heat capacity of a body

Define specific heat capacity.

What is meant by internal energy of a body

Write formula for heat capacity.

How cooling is produced in refrigerator

What is meant by fusion point?

Define Coefficient of linear thermal expansion and what is its SI unit

Write names of types of thermal volume expansion for liquids

What is thermometer?

Prepare Complete Set Wise Questions For Chapter 8 "9th Class Physics English Medium Chapter 8 Preparation "

Set 1

Set 2

Set 3

Set 4

Set 5

Set 6

Set 7

Set 8

Set 9

Set 10

Set 11

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

Which flower is used as natrual thermometer?

Define heat capacity of a body

Define specific heat capacity.

What is meant by internal energy of a body

Write formula for heat capacity.

How cooling is produced in refrigerator

What is meant by fusion point?

Define Coefficient of linear thermal expansion and what is its SI unit

Write names of types of thermal volume expansion for liquids

What is thermometer?

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

Does water nd spirit evaporate at same rate

On what factors, radiation depends?

Define lower and upper fixed points

Define heat capacity of a body.

What is meant by fusion point?

Define upper and lower fixed points of a thermometer

Differentiate between freezing and melting point

Write formula for heat capacity.

Define Latent Heat of fusion?

Define latent heat of vaporization?

9th Class Physics English Medium Chapter 8 Preparation - Set 3

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

Explain anomalous expansion of water

On what factors, radiation depends?

How temperature affects evaporation

How many intervals are in Kelvin scale

Give two uses of cooling affect by evaporation.

What is the use of thermometer

Define latent heat of fusion

What is meant by thermal expansion

What is temperature

9th Class Physics English Medium Chapter 8 Preparation - Set 4

Describe relation between heat capacity and quantity of substance

What is meant by linear thermal expansion

Why is ehat called as the energy in trans it

Write formula for heat capacity.

Write the use and range of clinical thermometer

How wind affects evaporation

What is the thermos flask?

What is thermometer?

Define volume thermal expansion and temperature co-efficient of volume expansion

Define latent heat of vaporization?

9th Class Physics English Medium Chapter 8 Preparation - Set 5

What is meant by linear thermal expansion.