Q1: Define temperature.
Ans: The measure of hotness or coldness of an object is called temperature. It is usually measured in “degrees”.
Q2: Name the device used to measure temperature.
Ans: A thermometer is a device used to measure temperature.
Thermometer
Q3: What is the unit of temperature as adopted by India?
Ans: Degree Celsius (°C)
Q4: The bulb of the laboratory thermometer should not touch the surface of the ________________.
Ans: Container.
Q5: Give an example to show the transfer of heat from one body to another.
Ans: Any utensil kept on flame becomes hot because heat transfers from flame to the utensil.
Q6: Heat always flows from a hotter object to ________________.
Ans: Colder object
Q7: In solid heat is transferred by the process of
a. Conduction
b. Convection
c. Radiation
d. None of these
Ans: Conduction.
Q8: Give examples of conductors.
Ans: Aluminium, copper, iron, etc.
Q9: Give examples of insulators.
Ans: Wood, plastic, rubber
Q10: Insulators are ________ conductors of heat.
Ans: Poor
Q11: Conductors are _____________ conductors of heat.
Ans: Good
Q12: Name the process by which heat transfers in air.
Ans: Convection.
Q13: From the sun, the heat comes to us by the process called ________________.
Ans: Radiation.
Q14: Which of the two absorbs more radiation- a dark-coloured object or a light-coloured object?
Ans: A dark-coloured object.
Q15: Land breeze blows at the time of __________.
Ans: Night
Q16: Sea breeze blows at the time of _________.
Ans: Day
Q17: Which type of clothing should be preferred for the month of June?
Ans: Light-coloured clothes
Q18: Which type of clothing should be preferred in January?
Ans: Dark coloured clothes.
This should now be in the correct order without any missing questions! Let me know if you’d like further changes.