Al-Huda Science Academy has designed Physics Chapter 9 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 9 Class 9 MCQs
Results
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#1. Poor conductor of heat is:
#2. Convection of heat is the process of heat transfer due to the:
#3. In solids, heat is transferred by:
#4. The unit of thermal conductivity is:
#5. False ceiling is done to:
#6. Which colour is a good absorber?
#7. Which of the following birds are expert thermal climbers?
#8. Which of the following is a good radiator of heat?
#9. The glider remains in air due to:
#10. The thermal conductivity of dry air is _____ W/mK.
#11. The example of bad conductor is:
#12. Land breeze blows from
#13. Unit of rate of thermal energy is:
#14. _____ is a good radiator of heat.
#15. Thermal conductivity of water is:
#16. Radiation is the mode of transfer of heat from one place to another in the form of waves called:
#17. Worst absorber of heat is:
#18. Rooms are heated using gas heaters by:
#19. Thermal conductivity of ice is:
#20. Warms clothes for winter season are:
#21. Metals are good good conductors of heat due to:
#22. The thermal conductivity of dry air is _____ W/mK.
#23. In liquids, heat is mainly transferred by:
#24. The thermal conductivity of copper in watt per meter per kelvin is:
#25. Land breeze and sea breeze are the result of:
#26. The surfaces of Leslie’s cube are:
#27. The unit of rate of conduction of thermal energy is:
#28. Thermal conductivity of brick is:
#29. In gases, heat is transferred by:
#30. The rate of flow of heat is:
#31. What happens to the thermal conductivity of a wall if its thickness is doubled?
#32. Which surface is bad emitter?
#33. Rate of flow of heat through conductor is inversely proportional to its:
#34. Global warming is due to a gas:
