Ex. 1: Put the chosen letter in table presented at the back page 1. Moving the water, we can reproduce: A-renewable energy B-potential energy C-Kinetic Energy-D-Green energy E- Mechanical energy 2. U.S alone reproduce a percent of the gross energy production cqual to: A- 30% B- 35% C 29% D 45% E- 29% F 25% 3. there are four generalized interactions between particles. In the nuclear interaction, the exchanged particle is: A-nuclei B-proton C-Neutron D-Gluons E-Meson 4. An amount of energy 15 quads is equivalent to: A-15.8 kJ B- 15MJ C-150 MJ D- 15.8EJE15.8nJ 5. The production of methanol from biomass is now a contributor to liquid fuel transportation A-yes B- Na 6. The disadvantages of a renewable energy are: A- High cost B - Visual pollution C - All mentioned D- Bat mortality 7. The pecuniary economic is in direct way with the idea of renewable energy A- No B-yes 8. In 2008 the lowest type of the word consumption energy is: A-geothermal B-Nuclear electric C-Petroleum D-Coal E-solar energy F-hydroelectric 9. A perpetual machine is a device: A - produce enough energy B - produces more energy than the energy needed C-produces energy without any needed energy E-produces 100 times the needed energy F-produces double the initial energy. 10. Renewable energy derives continually from: A - Chemical reactions between minerals B-Hydrogen chemical reaction C - Electrylse of water. DNothing from those 11. About the temperature of any system: A-related to his energy B-depends on the energy C-measure the potential of heat transfer. Dmeasure the internal energy of system E- A thermodynamic variable (Kelvin). 12. Electric generator is a devise products electric energy from: A. Chemical energy B- Mechanical energy C-solar energy D-thermal energy E-Solar energy 13. A body of a human male requires by day an average power of: A- 150.4W B-115.7W C- 125.7W D- 135.7W 14. The temperature of the surface temperature of the sun is approximately: A. 19 times the earth temperature B- 100 times the earth temperature C- 1000 times the earth temperature D- 850 times the earth temperature E- 15 times the earth temperature. 15. The specific heat is the energy (with the unit: Btu) needed to rise 10F the temperature of: A- 1kg of matter B- 1g of matter C-2 kg of matter D- 453lbm of matter E- 0.454kg of matter 0.454g of matter. 16. the main difference between insulator and semiconductor (sc) is: A- no gap for the semiconductor B-small gap for the insulator C-D-the gap for semiconductor is s and no electron in the conduction band. E- The current from (sc) is the result of only motion of electro
