Earth Sciences 1086F/G- Final Exam Guide - Comprehensive Notes for the exam ( 57 pages long!)

• School: Western University
• Department: Earth Sciences
• Course: Earth Sciences 1086F/G
• Professor: Deana Schwarz

Document Summary

The law of gravity: predicts the behaviour of an object as it falls, rather than explaining why it falls. Its supported as the general temperature of space should be 0 kelvin but is actually 2. 726 k. Infinite and unbounded: parallel lines will eventually diverge, expands forever the expansion rate will never approach 0, flat. I(cid:374) (cid:1006)(cid:1004)(cid:1004)(cid:1011), a sta(cid:396) (cid:449)as fou(cid:374)d to (cid:271)e (cid:1005)(cid:1007). (cid:1006) (cid:271)illio(cid:374) (cid:455)ea(cid:396)s(cid:859) old so the u(cid:374)i(cid:448)e(cid:396)se must be older. Hu(cid:271)(cid:271)le(cid:859)s e(cid:454)pa(cid:374)sio(cid:374) co(cid:374)sta(cid:374)t: we can use the hubble equation to determine the age of the most distant light sources we can find. Light years: used to measure distances in space, a light-year is the distance that light travels in one year, light travels 9. 4608 x 1012 km/year. Measuring light years: to measure different distance ranges, you need to use different measurement techniques, the most complex measurement technique is used for measuring 500-500million light years.