Q1. Fill in the blanks.
i. The hotness of an object is determined by its _______________.
ii. Temperature is measured in degree _____________.
iii. A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of_________________.
iv. Land breeze blows during___________.
v. Sea breeze blows during________.
vi. Dark coloured clothes are preferred during____________.
vii. Poor conductors are known as _______________.
i. Temperature of boiling water cannot be measured by a clinical thermometer. ________
ii. Medium is required for transfer of heat by the process of radiation. ________
iii. Clothes of dark colours absorb heat better than clothes of light colours. ________
iv. Light coloured clothes are preferred during summer. ________
v. We should hold the thermometer by the bulb while holding it. _______
vi. The bulb of laboratory thermometer should not touch the bottom or the sides of the container. ________
Q3. In which direction does the smoke go?
Q4. What do you mean by temperature?
Q5. Which device is used to measure temperature?
Q6. What is that silver stuff in a thermometer?
Q7. What is the unit of temperature as adopted by India?
Q8. What is the normal temperature of a human being?
Q9. What is the range of a laboratory thermometer?
Q10. What is the use of the kink in clinical thermometer?
Q11. How does heat flow from one object to another?
Q12. Does transfer of heat by radiation require any medium?
Q13. Do all hot bodies radiate heat?
Q14. How does heat transfer in liquids and gases?
Q15. Will heat transfer if the temperature of two objects is the same?
Q16. What should be the level of mercury in the clinical thermometer before use?
Q17. How does heat transfer in solids?
Q18. What is the best way to clean a thermometer?
Q19. What is Conduction?
Q20. What are insulators of heat?
Q21. What are conductors of heat?