Question
Arrows in the diagram below show three methods of energy transfer labeled A B, and C. Which list correctly identifies the energy transfer processes A, B and C? 1 A-conduction; B-convection; C-radiation 2 B-conduction : C-radiation 3 A-convection B-radiation : C-conduction 4 B-radiation C-convection
Answer
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Bella
Elite · Tutor for 8 years
Answer
To answer this question, we need to understand the three methods of energy transfer: conduction, convection, and radiation.Conduction is the transfer of heat through a solid material from one molecule to another by direct contact. In the context of the fish tank, conduction would occur if heat were being transferred through the glass of the tank or through the water by direct contact between molecules.Convection is the transfer of heat by the movement of fluids (liquids or gases). This would occur in the fish tank if the water were being heated and the warmer water was rising while cooler water was sinking, creating a circular flow of water within the tank.Radiation is the transfer of energy through space without the need for a medium, such as the heat from the sun reaching Earth. In the context of the fish tank, radiation would not be a significant method of heat transfer unless there was a heat lamp or some other radiant heat source directed at the tank.Based on the provided, we can infer the following:A (the water tank) - Since the water in the tank can circulate as it is heated, the most likely method of energy transfer here is convection.B (the water flowing from the hose) - The water coming from the hose would not be transferring energy through conduction since it's not in direct contact with a solid through which heat would be conducted. It's also not radiation. The most likely method of energy transfer for the water flowing from the hose is convection as well, as the water itself can carry heat into the tank.C (the fish inside the tank) - The fish are not a method of energy transfer in the context of heat; they are simply being affected by the temperature of the water. However, if we consider the fish as part of the system, they would be affected by the convection currents within the tank.Given these considerations, the correct identification of the energy transfer processes would be:A - convection (as the water in the tank can circulate and transfer heat)B - convection (as the water from the hose can carry heat into the tank)C - not applicable (as the fish are not a method of energy transfer, but if we had to choose, they would be affected by convection within the tank)Therefore, the correct answer is not explicitly listed among the options provided. However, if we must choose from the given options, the closest match would be:2 A-convection; B-conduction; C-radiationThis is not entirely correct based on the explanation above, but it is the only option that correctly identifies A as convection. The other parts of the answer are incorrect based on the given picture details. If the question is strictly about the energy transfer methods for A, B, and C as labeled in the diagram, then none of the options provided are fully correct.