1. Adding Heat Energy:
* Conduction: Transfer of heat through direct contact between molecules (e.g., holding a hot pan).
* Convection: Transfer of heat through the movement of fluids (liquids or gases) (e.g., boiling water).
* Radiation: Transfer of heat through electromagnetic waves (e.g., sunlight warming the Earth).
2. Performing Work on the Substance:
* Compression: Squeezing the substance, causing molecules to move faster (e.g., compressing a gas in a cylinder).
* Friction: Rubbing the substance against another surface, converting kinetic energy into heat (e.g., rubbing your hands together).
3. Chemical Reactions:
* Exothermic Reactions: Reactions that release heat energy into the surroundings, increasing the temperature (e.g., burning fuel).
Important Note:
* The specific heat capacity of a substance determines how much heat energy is needed to raise its temperature by a certain amount. Substances with higher heat capacities require more energy to change temperature.
Let me know if you'd like a deeper dive into any of these methods!
