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. #1. Degree of hotness or coldness of the body is called:
Temperature #2. The boiling point of water is: #3. The boiling point of gold is:
2777°C #4. Mercury is used as thermometric material because it has:
Low freezing point
Small heat capacity
Uniform thermal expansion
All #5. Unit of heat capacity is: #7. The formula of specific heat is:
c = ΔQ Δt/m
c = ΔQ/Δt
c = Δtm/ΔQ
c = m ΔQ/Δt #8. On Celsius scale, the temperature 300K will be: #9. Unit of heat is:
Joule per second
Meter per second
Joule #10. Temperature of ice in freezer is: #11. _____ of crocus is natural thermometer. #12. Which of the following affects evaporation?
Surface area of liquid
Wind #13. Specific heat of water is:
4200 J/kgK #14. Evaporation causes ______.
Cloudiness #16. Refrigerator is based on the principle of:
Mechanics #17. The coefficient of volume thermal expansion of aluminium is:
6 x 10 power -5 K-1
7.2 x 10 power -5 K-1
2.4 x 10 power -5 K-1
4.2 x 10 power -5 K-1 #18. Heat capacity of 5kg of water having specific heat equals to 4200 J/kgK is:
21000 J/K #19. The value of coefficient of linear thermal expansion of brass is:
1.9 x 10 power -6 K
1.9 x 10 power -5 K
1.9 x 10 power -8 K
1.9 x 10 power -7 K #20. 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
8 x 10power-5 K(power) -1
2 x 10power-15 K(power) -1
6 x 10power-5 K(power) -1 #21. The coefficient of linear expansion and volume expansion are related by the equation: #22. S.I. unit of specific heat is: #23. Which of the following material has large heat capacity: #24. Which of the following material has large value of temperature coefficient of linear expansion?
Brass #25. The value of specific heat of silver in J/kgK is: #26. The formula of conversion from Celsius to Kelvin scale is:
T(k) = 273 + °C
T(k) = 373 - °C
T(k) = 373 + °C
T(k) = 273 + °F #27. The formula of latent heat of fusion is:
ΔQ = CHf
ΔQ = mCf
ΔQ = mCf ΔT
ΔQ = mHf #28. A large water reservoir keeps the temperature of nearby land moderate due to:
Low temperature of water
Low specific heat of water
Large specific heat of water
Less absorption of heat #29. The specific heat of ice is:
2200 J/kgK #30. The boiling point of lead is:
1752 °C #31. Normal human body temperature is: #32. Specific heat of _____ is maximum.