Define temperature.

Answer

**Step-by-Step Text Solution:**

1. **Definition of Temperature**:
- Temperature is a physical quantity that measures the warmth or coldness of an object.

2. **Nature of Temperature**:
- It indicates how hot or cold a substance is, providing a scale to compare thermal energy between different objects.

3. **Measurement of Temperature**:
- Temperature is measured using a device called a thermometer.

4. **Units of Temperature**:
- The common units for measuring temperature include degrees Celsius (°C), degrees Fahrenheit (°F), and Kelvin (K).

5. **Conclusion**:
- In summary, temperature is a fundamental physical quantity that quantifies the thermal state of a substance, and it is essential for various scientific and practical applications.

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