Blog

Al-Huda Science Academy has designed Physics Chapter 8 Class 9 MCQs for board preparation. Most of the questions are from the previous board papers. These are helping material for all type of students. Must share to your fellows if helpful.

Time allocated to each question is 20 seconds.

Physics Chapter 8 Class 9 MCQs

 

Results

Congratulations….

You have secured more than 70% to pass the test.

Feel Free to Try Again….

You have secured less than 70% to pass the test.

Click Here to Test Again

#1. The value of specific heat of silver in J/kgK is:

470

387

903

920

#2. The specific heat of ice is:

2300 J/kgK

2100 J/kgK

2400 J/kgK

2200 J/kgK

#3. What will be the value of β for a solid for which α has a value of 2 x 10power-5 K(power) -1?

2 x 10power-5 K(power) -1

2 x 10power-15 K(power) -1

6 x 10power-5 K(power) -1

8 x 10power-5 K(power) -1

#4. Refrigerator is based on the principle of:

Light

Thermodynamics

Sound

Mechanics

#5. Specific heat of water is:

2500 J/kgK

800J/kgK

4200 J/kgK

1760 J/kgK

#6. The coefficient of volume thermal expansion of aluminium is:

7.2 x 10 power -5 K-1

6 x 10 power -5 K-1

2.4 x 10 power -5 K-1

4.2 x 10 power -5 K-1

#7. Which of the following affects evaporation?

All

Wind

Temperature

Surface area of liquid

#8. Normal human body temperature is:

42°C

37°C

98.6°C

15°C

#9. Unit of heat capacity is:

JK

JK2

J/K2

J/K

#10. Water freezes at:

-273K

0°F

32°F

0K

#11. The formula of specific heat is:

c = ΔQ Δt/m

c = m ΔQ/Δt

c = Δtm/ΔQ

c = ΔQ/Δt

#12. Evaporation causes ______.

Coolness

Dryness

Warmness

Cloudiness

#13. The value of coefficient of linear thermal expansion of brass is:

1.9 x 10 power -5 K

1.9 x 10 power -7 K

1.9 x 10 power -8 K

1.9 x 10 power -6 K

#14. Mercury freezes at:

0°C

-39°C

-357°C

-100°C

#15. A large water reservoir keeps the temperature of nearby land moderate due to:

Less absorption of heat

Low temperature of water

Low specific heat of water

Large specific heat of water

#16. Degree of hotness or coldness of the body is called:

Temperature

Heat

Thermal conductivity

Heat capacity

#17. Which of the following material has large heat capacity:

Mercury

Ice

Copper

Water

#18. The boiling point of lead is:

1753 °C

1750 °C

1752 °C

1750 °C

#19. S.I. unit of specific heat is:

J/kg2K

J/gK

J/kgK

KgK/J

#20. The formula of conversion from Celsius to Kelvin scale is:

T(k) = 373 + °C

T(k) = 373 - °C

T(k) = 273 + °C

T(k) = 273 + °F

#21. The formula of latent heat of fusion is:

ΔQ = CHf

ΔQ = mHf

ΔQ = mCf

ΔQ = mCf ΔT

#22. Heat capacity of 5kg of water having specific heat equals to 4200 J/kgK is:

840 J/K

5 J/K

21000 J/K

0.0011 J/K

#23. Specific heat of _____ is maximum.

Water

Copper

Mercury

Ice

#24. The coefficient of linear expansion and volume expansion are related by the equation:

β=α

β=α/2

β=3α

β=2α

#25. The boiling point of gold is:

2777°C

2595°C

2450°C

2660°C

#26. Unit of heat is:

Joule per second

Kelvin

Meter per second

Joule

#27. On Celsius scale, the temperature 300K will be:

26°C

27°C

25°C

24°C

#28. Temperature of ice in freezer is:

-28°C

0°C

-15°C

-18°C

#29. Mercury is used as thermometric material because it has:

Uniform thermal expansion

All

Low freezing point

Small heat capacity

#30. _____ of crocus is natural thermometer.

Stem

Flower

Root

Seed

#31. Which of the following material has large value of temperature coefficient of linear expansion?

Steel

Aluminium

Gold

Brass

#32. The boiling point of water is:

78°C

98°C

90°C

100°C

Previous

Finish