Class 7 Exam > Class 7 Questions > When we touch a steel rod and a paper simulta...
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When we touch a steel rod and a paper simultaneously, we feel that the rod is colder because
- a)more heat flows from iron to our body.
- b)iron being a good conductor conducts more heat from our body.
- c)paper being a good conductor conducts more heat from our body.
- d)more heat flows from the paper to our body.
Correct answer is option 'B'. Can you explain this answer?
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When we touch a steel rod and a paper simultaneously, we feel that the...
Heat always flows from a hotter region to a colder region. Since iron is a good conductor of heat, more heat will flow from our body to it and we will feel cold. As paper is a bad conductor, less heat will flow from our body.
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When we touch a steel rod and a paper simultaneously, we feel that the...
Explanation:
Conduction of Heat:
When we touch a steel rod and a paper simultaneously, we feel that the rod is colder because of the difference in their thermal conductivity. Thermal conductivity is the ability of a material to conduct heat.
Thermal Conductivity:
Steel, being a metal, has a much higher thermal conductivity compared to paper. This means that steel can conduct heat more effectively than paper. When we touch the steel rod and the paper at the same time, the steel rod conducts heat away from our body at a faster rate than the paper.
Conduction from Body:
Our body is constantly generating heat, and when we touch an object, heat is transferred from our body to that object. In this case, the steel rod being a good conductor of heat, conducts more heat away from our body compared to the paper.
Sensation of Coldness:
As more heat is conducted away from our body by the steel rod, we feel a sensation of coldness. This is because our body perceives the loss of heat as a drop in temperature, making the steel rod feel colder compared to the paper.
Therefore, the correct answer is option 'B' - "iron being a good conductor conducts more heat from our body."
Conduction of Heat:
When we touch a steel rod and a paper simultaneously, we feel that the rod is colder because of the difference in their thermal conductivity. Thermal conductivity is the ability of a material to conduct heat.
Thermal Conductivity:
Steel, being a metal, has a much higher thermal conductivity compared to paper. This means that steel can conduct heat more effectively than paper. When we touch the steel rod and the paper at the same time, the steel rod conducts heat away from our body at a faster rate than the paper.
Conduction from Body:
Our body is constantly generating heat, and when we touch an object, heat is transferred from our body to that object. In this case, the steel rod being a good conductor of heat, conducts more heat away from our body compared to the paper.
Sensation of Coldness:
As more heat is conducted away from our body by the steel rod, we feel a sensation of coldness. This is because our body perceives the loss of heat as a drop in temperature, making the steel rod feel colder compared to the paper.
Therefore, the correct answer is option 'B' - "iron being a good conductor conducts more heat from our body."
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When we touch a steel rod and a paper simultaneously, we feel that the rod is colder becausea)more heat flows from iron to our body.b)iron being a good conductor conducts more heat from our body.c)paper being a good conductor conducts more heat from our body.d)more heat flows from the paper to our body.Correct answer is option 'B'. Can you explain this answer?
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When we touch a steel rod and a paper simultaneously, we feel that the rod is colder becausea)more heat flows from iron to our body.b)iron being a good conductor conducts more heat from our body.c)paper being a good conductor conducts more heat from our body.d)more heat flows from the paper to our body.Correct answer is option 'B'. Can you explain this answer? for Class 7 2024 is part of Class 7 preparation. The Question and answers have been prepared according to the Class 7 exam syllabus. Information about When we touch a steel rod and a paper simultaneously, we feel that the rod is colder becausea)more heat flows from iron to our body.b)iron being a good conductor conducts more heat from our body.c)paper being a good conductor conducts more heat from our body.d)more heat flows from the paper to our body.Correct answer is option 'B'. Can you explain this answer? covers all topics & solutions for Class 7 2024 Exam. Find important definitions, questions, meanings, examples, exercises and tests below for When we touch a steel rod and a paper simultaneously, we feel that the rod is colder becausea)more heat flows from iron to our body.b)iron being a good conductor conducts more heat from our body.c)paper being a good conductor conducts more heat from our body.d)more heat flows from the paper to our body.Correct answer is option 'B'. Can you explain this answer?.
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