Answer Happy

B. B 17. When oil is burned to produce electricity, the electrical energy produced is less than the potential energy in the oil. Which best explains this observation? A. As oil is heated, some of the molecules move so fast that they are destroyed. B. Some of the energy in oil is destroyed by the Intense heat required to release its potential energy C. Some of the potential energy in oil is converted into forms of energy other than electricity D. The amount of potential energy in fuels is overestimated. 18. Temperature measures the average of the particles in a material A. chemical energy C. potential energy B. kinetic energy D. mechanical energy Use the pictures to the right to answer questions 19-20 below. 19. Thermal energy is transferred to the solar panel in picture B by A. Convection B. Conduction C. Friction D. Radiation 20. Which picture shows thermal energy transfer by convection? C.C A. A B.B D D