Flow of heat – answer in one sentence

  1. What conditions are necessary for transfer of heat from one body to another by conduction?
  2. Differentiate between good and bad conductors of heat.
  3. Why do woollen clothes keep us warmer in winters than cotton clothes?
  4. Why are ventilators in houses provided at the top of walls?
  5. How does heat from the sun reach us? At what speed does this transfer of heat take place?
  6. What is the function of the polished curved surface at the back of the heating rod in a room heater?

Passion JEE

"Stronger the roots, Brighter the future"