Physics- Thermal Energy Transfers 0.0 / 5 ? PhysicsEnergyIGCSEEdexcel Created by: tasha_0803Created on: 06-04-15 14:05 93576121048 Across 1. Air is an ..... (9) 4. When particles in a liquid or gas are heated, they cause the substance to expand and it becomes what? (4, 5) 7. In which process do hotter particles move to cooler places and transfer energy? (10) 8. Less dense liquids or gases will what? (4) 9. Infrared radiation is the transfer of heat energy by ..... waves (15) Down 2. Conduction is the main form of heat transfer in which state of matter? (5) 3. Metals are good at transferring heat via ..... as the delocalised electrons carry energy quickly (10) 5. The bigger the temperature difference, the .... heat is transferred between a body and its surroundings (6) 6. In conduction, vibration particles pass on what type of energy to neighbouring particles? (7) 10. dark/dull/matt surfaces emit and absorb .... infrared radiation than lighter ones (4)
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