Heat Transfer 8th

NamePeriod Match the word to its definition Conduction The transfer of heat through direct contact; a hotter object touches a colder one and transfers the heat energy. Convection The transfer of heat through circulation; warm air rises and cold air sinks to take its place. Happens in liquids and gases. Radiation The transfer of heat through waves or rays. Heat Transfer Only occurs when their is a difference in temperature between two areas. Identify the method of heat transfer that takes place in each illustration. radiation convection conduction radiation radiation radiation radiation radiation convection In each of the following situations, identify the method of heat transfer taking place (conduction, convection, radiation). 1. Hot coffee is stirred with a spoon, the spoon gets hot due to conduction.2. A chair is placed several feet from a fire in a fireplace. The fireplace has a glass screen. The side of the chair facing the fireplace gets warm because of radiation.3. A certain type of decorative lamp contains colored liquids. These liquids form globs that break off and rise to the top of the liquid. The globs rise due to convection. In each of the following situations, identify the method of heat transfer taking place (conduction, convection, radiation). 1. Near the ceiling of a room the air is warmer. The warm air rises because of convection. 2. A college student holds the back of his hand near an iron to see if it is hot. Heat is transferred to his hand by radiation. 3. A certain type of stainless steel cookware has a layer of copper applied to the bottom to help it heat evenly. The copper transfers heat to the pan by conduction. Draw what occurs during a heat transfer: List three examples of conduction. List three examples of convection. List three examples of radiation Go online and research the laws of thermodynamics. List the laws in the answer box below.