13. A constant force of 2.0 Nis used to push a 3.0 kg box 4.0 m across the floor. How much work is done? A61 C123 D. 26

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13 A Constant Force Of 2 0 Nis Used To Push A 3 0 Kg Box 4 0 M Across The Floor How Much Work Is Done A61 C123 D 26 1 (49.22 KiB) Viewed 62 times

13. A constant force of 2.0 Nis used to push a 3.0 kg box 4.0 m across the floor. How much work is done? A61 C123 D. 26 14. The rate at which work is done is A. power 3 force c efficiency D momentum 15. A material that resists/limits the flow of heat by conduction, convection, and radiation is alw). A conductor C. radiator B. Insulator D. generator 16. In the diagram to the right, a roller coaster car starts from rest and moves along the track. At what point does the roller coaster car have the greatest potential energy? A. A С. С B. B D D 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 fuets 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? B A A C.c 20 e B.B D D