Transferring Thermal Energy

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Presentation transcript:

Transferring Thermal Energy Chapter 6.2

3 ways to transfer thermal energy Conduction Convection Radiation

Conduction Transfer of thermal energy by collisions between particles in matter Particles are always in motion and colliding Thermal energy transfers from objects with more KE (higher T) to objects with less No transfer of matter

Solids and liquids conduct heat better than gases (molecules are closer together to collide)

Convection Liquids and gases can flow and are classified as fluids Convection transfer of thermal energy in a fluid by movement of warmer and cooler fluid from place to place More energetic molecules move more from one place to another

Radiation Transfer of energy by electromagnetic waves (light) Can travel through space (not enough matter in space for conduction and convection)

Conduction, Convection or Radiation Using a heat blanket to get warm Conduction Lying out in the sun getting a tan. Radiation Putting your wet shoes on a boot dryer to dry them. Convection Macaroni rising and falling in a boiling pot of water A person placing their hands over a hot burner.