Question # 1

Glider pilots use __________ movement of hot air currents due to convection of heat:

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Downward

Upward

Left

right

____________ is bad conductors of heat:

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Copper

Water

Wire

Nil

Land breeze from land to sea during:

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Day

Night

Afternoon

Morning

There are ______ modes of transfer of heat:

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1

2

3

4

More radiation is reflected by the surface:

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White

Coloured

Black

Rough

The sun's surface temperature is :

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3,000 K

3,030 k

6,000 K

600 K

Rooms are heated using gas heaters by

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Conduction only

Convection and radiation

Radiation only

Convection only

The main source of energy n the universe is:

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Moon

Stars

Sun

Planets

Rooms are heated using gas heater by:

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Conduction only

Convection and radiation

Radiation only

Convection only

The radiation from sun is:

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Alpha

Gamma

Radio

Ultraviolet

The temperature of a black dull surface on heating :

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Rise Rapidly

Fall Rapidly

Becomes zero

Remain constant

Heat is an important form of

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Matter

Energy

Wind

Force

Transfer of heat by actual movement of molecules form hot place to cold place is called:

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Conduction

Convection

Radiation

None

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9th Class Physics Chapter 9 Transfer of Heat English Medium KPK Boards Online Mcqs MCQs With Answers

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