EARTHSC 1151 Midterm: Earth Science Exam 1

• School: Ohio State University
• Department: Earth Sciences
• Course: EARTHSC 1151
• Professor: Barton Michael

Document Summary

Natural processes driven by different forms of energy. Hazards and disasters result from processes that concentrate (accumulate, build up) then release energy. Different forms of energy thermal (heat), mechanical, gravitational, electrical, chemical etc. One form of energy can be converted into another(eg. mechanical and thermal). Earth processes largely result of interplay between heat and gravity. Internal energy sources of energy within the earth. These processes impact the surface (earthquakes, volcanic eruptions, mountain building (or orogenesis)) External energy sources of energy available to drive processes at the surface. Essential to regulate atmosphere and oceans, and hence climate and life. Formation of sun - most matter collected at the center. Collisions of particles produced a hot proto sun at the center. Continued rise in temperature (to 1 million degrees centigrade) and pressure allow onset of fusion hydrogen (h) and helium (he) to form sun and producing solar radiation. Formation of planets - rings of concentrated matter formed within disc.