Heat transfer
Crossword
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Across: 1. Thermal radiation is part of this family of waves 3. These materials are the best conductors of heat 6. We must increase this for all appliances if we need to save energy. 7. The way in which heat is transferred from the sun to earth 8. The worst conductors of heat. 9. The process by which heat is transferred by vibration of particles. 12. The process by which heat is transferred by the movement of the substance ... 14. Increasing this surface property will increase the rate of increase of convection ... 15. No particles in this, so no conduction of convetion can take place. 16. Metallic surfaces should have this type of surface to reflect radiation.. 18. These substances have conduction properties between gases and solids. 19. The transfer of vibrations for conduction needs ........
Down: 2. This increases if a material gains heat energy 4. Heat is a form of ...... 5. Heat radiation is transferred by ...... 10. This colour is recommended for absorbing maximum radiated heat. 11. These are the reason why metals are such good conductors 13. This wave has a heating effect when it absorbed by an object. 14. All substances are made from these basic building blocks... 17. This transfer of this energy occurs from high to low temperatures.