7) Identify energy transformations within a system. In photosynthesis, light energy is transformed into chemical energy. Types of energy: chemical, electrical, electromagnetic, mechanical, nuclear, radiant or light, sound, & thermal. Chemical = stored in bonds that hold atoms together in molecules Electrical = movement of ____________--electricity Electromagnetic = motors and generators Mechanical = movement Nuclear = ________________ and fusion Light = movement of electrons from higher to lower energy level Sound = ____________________ of molecules Thermal = _____________content Kinetic = energy in ________________. Potential = stored energy Energy sources: fossil fuels, geothermal, hydroelectric, nuclear, solar, & wind. 8) Investigate molecular motion as it relates to thermal energy changes in terms of conduction, radiation, and convection. Convection currents utilize liquids and gasses (fluids) to transfer heat. Conduction occurs when heat is transferred by direct contact in ___________________. Radiation can transfer heat through empty space. 9) Friction Frictional forces = slow down the motion of objects. Sliding friction = one solid slides over another. Rolling friction = one object rolls over another. Static friction = objects touch but don’t move.
7) Identify energy transformations within a system. In photosynthesis, light energy is transformed into chemical energy. Types of energy: chemical, electrical, electromagnetic, mechanical, nuclear, radiant or light, sound, & thermal. Chemical = stored in bonds that hold atoms together in molecules Electrical = movement of ____________--electricity Electromagnetic = motors and generators Mechanical = movement Nuclear = ________________ and fusion Light = movement of electrons from higher to lower energy level Sound = ____________________ of molecules Thermal = _____________content Kinetic = energy in ________________. Potential = stored energy Energy sources: fossil fuels, geothermal, hydroelectric, nuclear, solar, & wind. 8) Investigate molecular motion as it relates to thermal energy changes in terms of conduction, radiation, and convection. Convection currents utilize liquids and gasses (fluids) to transfer heat. Conduction occurs when heat is transferred by direct contact in ___________________. Radiation can transfer heat through empty space. 9) Friction Frictional forces = slow down the motion of objects. Sliding friction = one solid slides over another. Rolling friction = one object rolls over another. Static friction = objects touch but don’t move.
Physical-Science-Energy-After-School-EOCT-review.docx