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. Water freezes at:

32°F

0°F

0K

-273K

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

Heat capacity

Heat

Thermal conductivity

Temperature

#3. Normal human body temperature is:

42°C

37°C

98.6°C

15°C

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

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

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

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

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

#5. Unit of heat is:

Kelvin

Meter per second

Joule

Joule per second

#6. The formula of specific heat is:

c = m ΔQ/Δt

c = ΔQ Δt/m

c = ΔQ/Δt

c = Δtm/ΔQ

#7. Which of the following affects evaporation?

Surface area of liquid

All

Wind

Temperature

#8. Specific heat of water is:

800J/kgK

4200 J/kgK

1760 J/kgK

2500 J/kgK

#9. The specific heat of ice is:

2300 J/kgK

2400 J/kgK

2100 J/kgK

2200 J/kgK

#10. The boiling point of lead is:

1753 °C

1750 °C

1750 °C

1752 °C

#11. _____ of crocus is natural thermometer.

Stem

Flower

Root

Seed

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

Less absorption of heat

Low specific heat of water

Low temperature of water

Large specific heat of water

#13. Refrigerator is based on the principle of:

Thermodynamics

Mechanics

Light

Sound

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

All

Low freezing point

Small heat capacity

Uniform thermal expansion

#15. Unit of heat capacity is:

JK2

J/K

J/K2

JK

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

Steel

Gold

Brass

Aluminium

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

1.9 x 10 power -7 K

1.9 x 10 power -6 K

1.9 x 10 power -5 K

1.9 x 10 power -8 K

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

25°C

27°C

26°C

24°C

#19. The boiling point of water is:

78°C

90°C

100°C

98°C

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

470

387

920

903

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

β=2α

β=3α

β=α/2

β=α

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

7.2 x 10 power -5 K-1

4.2 x 10 power -5 K-1

2.4 x 10 power -5 K-1

6 x 10 power -5 K-1

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

840 J/K

0.0011 J/K

5 J/K

21000 J/K

#24. Temperature of ice in freezer is:

-28°C

0°C

-15°C

-18°C

#25. Evaporation causes ______.

Warmness

Dryness

Cloudiness

Coolness

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

Mercury

Copper

Ice

Water

#27. Specific heat of _____ is maximum.

Ice

Copper

Water

Mercury

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

T(k) = 373 + °C

T(k) = 273 + °C

T(k) = 373 - °C

T(k) = 273 + °F

#29. Mercury freezes at:

0°C

-100°C

-39°C

-357°C

#30. The boiling point of gold is:

2660°C

2595°C

2450°C

2777°C

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

ΔQ = CHf

ΔQ = mCf

ΔQ = mHf

ΔQ = mCf ΔT

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

KgK/J

J/kg2K

J/gK

J/kgK

Previous

Finish