Question

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Q7. Based on your logics predict which type of heat transfer is occurring in each scenario.
1. Hot air balloon rises
2. A spoon in a cup of hot soup becomes warmer
3. You feel the heat from the sun
4. Hot water rises and cold water sinks​

Answer 1

Explanation:

1. it rises because hot air is lighter than the atmospheric air

2. as spoon is a metal and the metals are good conductor of heat thus turn warmer when dipped in hot cup

3. heat from sun reaches us in the form of radiation which is annoying when body cannot bear it

4. hot water rises beacuse of low density while due to higher density cold water sinks