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Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?
- a)Sonu's breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.
- b)Sonu's breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer inside
- c)Sonu's exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.
- d)None of the above
Correct answer is option 'A'. Can you explain this answer?
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Sonu was feeling very cold. He kept blowing on to his hands. Why did h...
Sonu’s hands will be cooler than his breath. He used the warmer air coming out of his mouth to warm his cold hands.
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Sonu was feeling very cold. He kept blowing on to his hands. Why did h...
Answer:
Introduction:
Sonu was feeling very cold and he kept blowing on to his hands to warm them up. In this scenario, the correct answer is option 'A', which states that Sonu's breath was hotter than his skin (particularly on a cold day). By blowing, he transferred energy from inside his body to his hands by convection.
Explanation:
1. Convection:
- Convection is the transfer of heat through the movement of a fluid (liquid or gas).
- When Sonu blows on his hands, the air he exhales acts as the fluid in this case.
- The warm air from Sonu's breath comes into contact with his cold hands and transfers heat to them.
- This process is known as convection, where heat is transferred by the movement of the fluid (in this case, air).
2. Temperature Difference:
- On a cold day, the temperature of the air is generally lower than the temperature of Sonu's skin.
- Sonu's breath, however, is warmer than the surrounding air.
- By blowing on his hands, Sonu creates a flow of warm air that increases the temperature of his hands.
- This temperature difference helps to warm up his hands and provide relief from the cold sensation.
3. Energy Transfer:
- When Sonu blows on his hands, the warm air from his breath transfers energy to his hands.
- This energy transfer occurs because the warm air has a higher temperature than his hands.
- As a result, the heat from the warm air is conducted to his hands, raising their temperature and providing a sense of warmth.
Conclusion:
In conclusion, Sonu blew on his hands to warm them up because his breath was hotter than his skin (particularly on a cold day). By blowing, he transferred energy from inside his body to his hands through convection. This process helped to increase the temperature of his hands and provide relief from the cold sensation.
Introduction:
Sonu was feeling very cold and he kept blowing on to his hands to warm them up. In this scenario, the correct answer is option 'A', which states that Sonu's breath was hotter than his skin (particularly on a cold day). By blowing, he transferred energy from inside his body to his hands by convection.
Explanation:
1. Convection:
- Convection is the transfer of heat through the movement of a fluid (liquid or gas).
- When Sonu blows on his hands, the air he exhales acts as the fluid in this case.
- The warm air from Sonu's breath comes into contact with his cold hands and transfers heat to them.
- This process is known as convection, where heat is transferred by the movement of the fluid (in this case, air).
2. Temperature Difference:
- On a cold day, the temperature of the air is generally lower than the temperature of Sonu's skin.
- Sonu's breath, however, is warmer than the surrounding air.
- By blowing on his hands, Sonu creates a flow of warm air that increases the temperature of his hands.
- This temperature difference helps to warm up his hands and provide relief from the cold sensation.
3. Energy Transfer:
- When Sonu blows on his hands, the warm air from his breath transfers energy to his hands.
- This energy transfer occurs because the warm air has a higher temperature than his hands.
- As a result, the heat from the warm air is conducted to his hands, raising their temperature and providing a sense of warmth.
Conclusion:
In conclusion, Sonu blew on his hands to warm them up because his breath was hotter than his skin (particularly on a cold day). By blowing, he transferred energy from inside his body to his hands through convection. This process helped to increase the temperature of his hands and provide relief from the cold sensation.
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Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer?
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Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? for Class 5 2024 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 5 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? for Class 5 2024 is part of Class 5 preparation. The Question and answers have been prepared according to the Class 5 exam syllabus. Information about Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? covers all topics & solutions for Class 5 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer?.
Solutions for Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 5.
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Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer?, a detailed solution for Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? has been provided alongside types of Sonu was feeling very cold. He kept blowing on to his hands. Why did he do that ?a)Sonus breath was hotter than his skin (particularly on a cold day). By blowing, he transfer energy from inside his body to hands by convection.b)Sonus breath was cooler than his skin . By blowing out this cooler air out, Sonu felt warmer insidec)Sonus exhales out cool air and breathes in the air in the atmosphere which is relatively warmer and thus feels warm.d)None of the aboveCorrect answer is option 'A'. Can you explain this answer? theory, EduRev gives you an
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