ESCI 1001 Lecture Notes - Lecture 1: 45Th Parallel North, Asteroid Belt, Cold Days
Document Summary
Internal: energy that earth products, when earth condensed, it make it heat, radioactive material creates heat, external, solar energy, angular momentum, how is a day defined, the time it takes the earth to rotate about its axis b. If we"re moving around the sun, we"re moving at 66,600 mph: external energy and momentum (which is not energy) linear and angular. If something collides with earth, it could throw us off orbit a: angular momentum b. i. Gravity is pulling gas in, creating gravity and orbit rotation b. ii. All planets have angular momentum: asteroid belt between mars and jupiter c. i. Jupiter has much stronger gravity from earth and can move asteroids out of orbit, causing meteor showers c. ii. Earth"s axis is off by about 23. 5 degrees. We have different daylight hours during those seasons. Venus"s tilt is 2 degrees d. ii. 1. d. ii. 2. d. ii. 3. d. ii. 3. a.
