EARTHSC 2GG3 Study Guide - Final Guide: Epicenter, Transverse Wave, Seismic Wave
25 Dec 2015
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Session 1: solar system, space hazards, earths structure, plate tectronics. Define the various space projectiles (rough: size, speed, composition, where do they come from: asteroids large metallic or rocky objects. 15-25 km/s: comets large icy objects. 100 m 40 km, or larger, 60-70 km/s : meteorites small rocky objects that survive passage through the. Kuiper belt atmosphere, terminal velocity (>300 m/s), usually <1kg, but can be up to 200 kg. What does influence the kinetic energy which is transmitted and converted upon impact of a meteorite/asteroid/comet: size and velocity! Difference between: meteoroid, meteor, meteorite: meteor: flash of light we see when a small bit of rocky debris burns up reaching the ground in the atmospher, meteoroid: debris in space. Where does a comet"s tail point to/away from: away from the sun. Tons energy melts all the rock that is being struck and gravity is involved in the uplift of the central region (which is attempting to return to eql position)
