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Questions and Answers
How is heat generated when rubbing palms together?
How is heat generated when rubbing palms together?
- By doing work (mechanical energy) (correct)
- By absorbing heat from the surroundings
- By converting light energy
- By releasing stored heat
What is the common experience when touching an ice cube?
What is the common experience when touching an ice cube?
- Feeling cold (correct)
- Feeling a tingling sensation
- Feeling hot
- Feeling no change in temperature
What form of energy is obtained when passing current in a metallic wire?
What form of energy is obtained when passing current in a metallic wire?
- Heat energy
- Electrical energy (correct)
- Mechanical energy
- Chemical energy
What is the sum of kinetic energy and potential energy of all molecules in a body called?
What is the sum of kinetic energy and potential energy of all molecules in a body called?
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What happens when heat is transferred between two substances or bodies?
What happens when heat is transferred between two substances or bodies?
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What is heat according to the given example?
What is heat according to the given example?
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How is heat generated when rubbing palms together?
How is heat generated when rubbing palms together?
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What is the internal energy of a body a sum of?
What is the internal energy of a body a sum of?
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What happens when passing electric current in a metallic wire?
What happens when passing electric current in a metallic wire?
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How is heat transferred between two substances or bodies?
How is heat transferred between two substances or bodies?
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