Ways of Heat Transfer www assignmentpoint com Ways
- Slides: 11
Ways of Heat Transfer www. assignmentpoint. com
Ways of Heat Transfer Convection 2. Conduction 3. Radiation 1. www. assignmentpoint. com
Conduction n Conduction--transfer of heat between atoms as they collide within a substance n 2 objects touching www. assignmentpoint. com
Convection n Convection is the movement of matter due to differences in density that are caused by temperature n Important in weather, plate tectonics, and ocean currents www. assignmentpoint. com
Radiation n Radiation is the transfer of energy by electromagnetic waves, such as visible light and infrared waves n Key form = sunlight www. assignmentpoint. com
Phases of Matter n. There are 3 main phases of matter: n. Solid, Liquid, and Gas (a 4 th is sometimes included—plasma) n. Each phase requires a certain amount of kinetic energy www. assignmentpoint. com
Solids n Require the least amount of energy n Very low particle movement n Usually associated with low temperatures n When solids gain enough energy they change through a process called MELTING www. assignmentpoint. com
Liquids n More energy than solids, less than gases n Take the shape of their container because they have more freedom to move than solids n Liquids can lose energy to become solid through a process called FREEZING n Liquids can also gain energy to www. assignmentpoint. com
Gases n Have the most energy of the 3 phases n Particles move around very freely n Usually associated with high temperatures n If gases lose energy (temperature), they can change back to a liquid through a process www. assignmentpoint. com
www. assignmentpoint. com
www. assignmentpoint. com
