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Class 7
Chapter 4 Class 7 - Heat

Heat is transferred from hot objects to cold objects .

For Example

  • A pan becomes hot when kept on the flame - Heat transferred from flame to pan
  • It cools down again when the flame is switched off - Heat transferred from pan to surroundings
  • The other end of a rod would heat if a flame is applied to one end - Transfer of heat through the rod from the hotter end to the colder end.
  • This implies that heat cannot be transferred if two objects have the same temperature .

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Maninder Singh

CA Maninder Singh is a Chartered Accountant for the past 13 years and a teacher from the past 17 years. He teaches Science, Economics, Accounting and English at Teachoo