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Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?
- a)Hot air is heavier than the cold air.
- b)Water vapour give energy to the balloon.
- c)Air likes hot balloons.
- d)Hot air is lighter and therefore rises higher.
Correct answer is option 'D'. Can you explain this answer?
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Asma took two balloons. She blew air with mouth in one balloon and she...
Hot air has less weight.
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Asma took two balloons. She blew air with mouth in one balloon and she...
Explanation:
Introduction:
In this experiment, Asma observed the behavior of two balloons filled with different substances - one with hot air and the other with the vapors of boiling water. The observation was that the balloon filled with hot air rose higher than the one filled with water vapors. From this, Asma learned that hot air is lighter and therefore rises higher.
Density and Buoyancy:
To understand why the balloon with hot air rose higher, we need to consider the concepts of density and buoyancy. Density refers to the amount of mass per unit volume of a substance. When comparing two substances, the one with a higher density will sink below the substance with a lower density. Buoyancy, on the other hand, is the upward force exerted on an object immersed in a fluid (liquid or gas).
Hot Air vs Cold Air:
1. Hot air is lighter: When air is heated, its molecules gain energy and move faster, causing them to spread out, and the air becomes less dense. As a result, hot air is lighter than cold air.
2. Cold air is heavier: Conversely, when air is cooled, its molecules slow down, come closer together, and the air becomes denser and heavier.
Observation:
In the given experiment, two balloons were filled with different substances:
1. Balloon filled with hot air: When Asma blew air from her mouth into the balloon, the air inside became hot. As hot air is lighter than cold air, the balloon filled with hot air became less dense than the surrounding cold air.
2. Balloon filled with water vapors: Asma filled the second balloon with the vapors of boiling water. Water vapors are hot and less dense than the surrounding cold air.
Buoyancy and Rising of Balloons:
When the balloons were released, the following happened:
1. Balloon with hot air: Since the balloon filled with hot air was less dense than the surrounding cold air, it experienced an upward buoyant force greater than its weight. This buoyant force pushed the balloon upwards, causing it to rise higher.
2. Balloon with water vapors: The balloon filled with water vapors, being less dense than the surrounding cold air, also experienced an upward buoyant force greater than its weight. However, since water vapors are even lighter than hot air, this balloon rose even higher than the one filled with hot air.
Conclusion:
From this experiment, Asma learned that hot air is lighter than cold air, and therefore, it rises higher. This is because hot air has a lower density compared to cold air. The rising of the balloon filled with hot air and the balloon filled with water vapors demonstrated the principle of buoyancy, where objects with lower density than the surrounding fluid experience an upward force and tend to rise.
Introduction:
In this experiment, Asma observed the behavior of two balloons filled with different substances - one with hot air and the other with the vapors of boiling water. The observation was that the balloon filled with hot air rose higher than the one filled with water vapors. From this, Asma learned that hot air is lighter and therefore rises higher.
Density and Buoyancy:
To understand why the balloon with hot air rose higher, we need to consider the concepts of density and buoyancy. Density refers to the amount of mass per unit volume of a substance. When comparing two substances, the one with a higher density will sink below the substance with a lower density. Buoyancy, on the other hand, is the upward force exerted on an object immersed in a fluid (liquid or gas).
Hot Air vs Cold Air:
1. Hot air is lighter: When air is heated, its molecules gain energy and move faster, causing them to spread out, and the air becomes less dense. As a result, hot air is lighter than cold air.
2. Cold air is heavier: Conversely, when air is cooled, its molecules slow down, come closer together, and the air becomes denser and heavier.
Observation:
In the given experiment, two balloons were filled with different substances:
1. Balloon filled with hot air: When Asma blew air from her mouth into the balloon, the air inside became hot. As hot air is lighter than cold air, the balloon filled with hot air became less dense than the surrounding cold air.
2. Balloon filled with water vapors: Asma filled the second balloon with the vapors of boiling water. Water vapors are hot and less dense than the surrounding cold air.
Buoyancy and Rising of Balloons:
When the balloons were released, the following happened:
1. Balloon with hot air: Since the balloon filled with hot air was less dense than the surrounding cold air, it experienced an upward buoyant force greater than its weight. This buoyant force pushed the balloon upwards, causing it to rise higher.
2. Balloon with water vapors: The balloon filled with water vapors, being less dense than the surrounding cold air, also experienced an upward buoyant force greater than its weight. However, since water vapors are even lighter than hot air, this balloon rose even higher than the one filled with hot air.
Conclusion:
From this experiment, Asma learned that hot air is lighter than cold air, and therefore, it rises higher. This is because hot air has a lower density compared to cold air. The rising of the balloon filled with hot air and the balloon filled with water vapors demonstrated the principle of buoyancy, where objects with lower density than the surrounding fluid experience an upward force and tend to rise.
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Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer?
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Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? for Class 3 2024 is part of Class 3 preparation. The Question and answers have been prepared according to the Class 3 exam syllabus. Information about Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 3 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer?.
Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? for Class 3 2024 is part of Class 3 preparation. The Question and answers have been prepared according to the Class 3 exam syllabus. Information about Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? covers all topics & solutions for Class 3 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer?.
Solutions for Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? in English & in Hindi are available as part of our courses for Class 3.
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Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer?, a detailed solution for Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? has been provided alongside types of Asma took two balloons. She blew air with mouth in one balloon and she filled another balloon with the vapours of boiling water. She released the two balloons and observed that the balloon with the hot vapours rose higher than the other balloon. What did she learn from this experiment?a)Hot air is heavier than the cold air.b)Water vapour give energy to the balloon.c)Air likes hot balloons.d)Hot air is lighter and therefore rises higher.Correct answer is option 'D'. Can you explain this answer? theory, EduRev gives you an
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