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. Unit of heat is:

Meter per second

Joule per second

Kelvin

Joule

#2. The boiling point of gold is:

2660°C

2777°C

2595°C

2450°C

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

387

920

903

470

#4. The formula of specific heat is:

c = ΔQ/Δt

c = Δtm/ΔQ

c = m ΔQ/Δt

c = ΔQ Δt/m

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

T(k) = 273 + °F

T(k) = 373 + °C

T(k) = 373 - °C

T(k) = 273 + °C

#6. _____ of crocus is natural thermometer.

Root

Stem

Flower

Seed

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

27°C

24°C

26°C

25°C

#8. Water freezes at:

32°F

0K

0°F

-273K

#9. The specific heat of ice is:

2400 J/kgK

2300 J/kgK

2100 J/kgK

2200 J/kgK

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

Large specific heat of water

Less absorption of heat

Low specific heat of water

Low temperature of water

#11. Specific heat of _____ is maximum.

Copper

Water

Mercury

Ice

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

Uniform thermal expansion

All

Low freezing point

Small heat capacity

#13. Normal human body temperature is:

98.6°C

37°C

42°C

15°C

#14. The boiling point of lead is:

1753 °C

1752 °C

1750 °C

1750 °C

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

7.2 x 10 power -5 K-1

2.4 x 10 power -5 K-1

6 x 10 power -5 K-1

4.2 x 10 power -5 K-1

#16. The boiling point of water is:

100°C

98°C

90°C

78°C

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

Gold

Steel

Aluminium

Brass

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

Ice

Water

Copper

Mercury

#19. Unit of heat capacity is:

J/K2

JK

J/K

JK2

#20. Refrigerator is based on the principle of:

Mechanics

Sound

Light

Thermodynamics

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

J/kgK

J/kg2K

J/gK

KgK/J

#22. Evaporation causes ______.

Coolness

Cloudiness

Warmness

Dryness

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

β=2α

β=3α

β=α/2

β=α

#24. Mercury freezes at:

-100°C

0°C

-39°C

-357°C

#25. Which of the following affects evaporation?

Surface area of liquid

Wind

All

Temperature

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

Temperature

Heat

Heat capacity

Thermal conductivity

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

ΔQ = CHf

ΔQ = mCf

ΔQ = mCf ΔT

ΔQ = mHf

#28. Temperature of ice in freezer is:

-18°C

-28°C

0°C

-15°C

#29. Specific heat of water is:

2500 J/kgK

4200 J/kgK

1760 J/kgK

800J/kgK

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

1.9 x 10 power -8 K

1.9 x 10 power -5 K

1.9 x 10 power -7 K

1.9 x 10 power -6 K

#31. 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-15 K(power) -1

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

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

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

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

5 J/K

840 J/K

21000 J/K

0.0011 J/K

Previous

Finish