Heat Transfer

Conduction flow of energy through touch Convection flow of energy through rise and fall of liquids radiation flow of energy through open space Conductor Material through which heat can be transferred Insulator A material that is a poor conductor of heat and that delays the transfer of heat Newtons Law of Cooling The rate at which something cools is directly proportional to the temperature difference between the object and its surroundings 1. conduction convection radiation 2. conduction convection radiation 3. conduction convection radiation 4. conduction convection radiation 5. conduction convection radiation Review of Heat and Temperature! 6. On the Celsius scale, pure water freezes at 0 degrees and pure water boils at 100 degrees.7. What method transfers heat from the sun to Earth? radiation8. Heat is moved through the troposphere mainly by convection.9. The total energy of motion in the particles of a substance is called thermal energy.10. temperature is the average amount of energy of motion in the particles of a substance.11. A(n) thermometer is a thin glass tube with a bulb on one end that contains a liquid, usually mercury or colored alcohol.12. The energy transferred from a hotter object to a cooler one is referred to as heat.13. The direct transfer of heat from one substance to another substance that it is touching is called conduction.14. The transfer of heat by the movement of a fluid is called convection. In each situation, identify the method of heat transfer taking place conduction, convection, or radiation. 1. Hot coffee is stirred with a spoon. The spoon gets hot due to conduction2. A chair is placed several feet from the fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of radiation3. A certain typ of decorative lamp contains colored liquids. thee liquids form globes that break off and rise to the top of the liquid. The globes rise due to convection4. Near the ceiling the air is warm. This is because of convection5. A college students holds his hand near the back of an iron to see if it is hot. Heat is transferred to his hand by radiation6. A certain type of stainless steel cookware has a layer of copper applied to the bottom to help it heat evenly. The copper transfers eat to heat the pan by conduction