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Question
Who is telling the truth?
Objects contract on heating.
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Solution
Sentence is lying as objects expand on heating.
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| Group A | Group B | ||
| a. | Temperature of a healthy human body | i. | 296 K |
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| c. | Room temperature | iii. | 0°C |
| d. | Freezing point of water | iv. | 212∘F |
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Total Kinetic Energy of molecules: Heat :: Average Kinetic Energy : ______.
When ______ flows through a conductor, heat energy is produced.
Match the following:
| 1. | Source of heat | a. | heat energy |
| 2. | Electric current | b. | calorie |
| 3. | Gasoline | c. | 37°C |
| 4. | Unit of heat | d. | Electric kettle |
| 5. | Human body temperature | e. | sun |
List and describe the sources of heat.
