Subject: General Science
Book: NCERT Science Class 11
Heat affects the state and properties of matter.
- **Temperature and Heat**:
- Temperature measures thermal energy.
- Heat is the total energy transferred due to temperature difference.
- **Modes of Heat Transfer**:
- Conduction (Solids).
- Convection (Fluids).
- Radiation (Vacuum).
- **Thermal Expansion**:
- Solids, liquids, and gases expand on heating.
**Possible Exam Questions:**
1. Differentiate between heat and temperature.
2. What are the different modes of heat transfer?
3. Explain thermal expansion with real-life examples.
4. Why do bridges have expansion joints?
5. Discuss applications of thermal insulation.
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