Give two examples each of conductors and insulators of heat.
Conductors”aluminium, iron Insulators"plastic, wood.
Fill in the blanks
The hotness of an object is detetmined by its ____________ .
(b) Temperature of boiling water cannot be measured by a ____________ thermometer.
(c) Temperature is measured in degree ____________ .
(d) No medium is required for transfer of heat by the process of ____________.
(e) A cold steel spoon is dipped in a cup of hot milk. It transfers heat to its other end by the process of ____________
(f) Clothes of ___________ colours absorb heat better than clothes of light colours.
In places of hot climate it is advised that the outer walls of houses be painted white. Explain.
Discuss why wearing more layers of clothing during winter keeps us warmer than wearing just one thick piece of clothing?
State similarities and differences between the laboratory thermometer and the clinical thermometer.
Look at figure 4.6. Mark where the heat is being transferred by conduction, by convection and by radiation
