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