Physics 1 (Earth and the universe) 0.0 / 5 ? PhysicsEarth in spaceGCSEOCR Created by: Sam_CCreated on: 01-03-14 14:31 Best place to see stars High up (nearer/cloudless/away from light pollution) 1 of 10 Measuring stars Apparent brightness (less accurate) OR parallax (mathematical so more accurate) 2 of 10 Proving the Big Bang theory Redshift shows galaxies moving apart, space is filled with microwaves, oldest stars are younger than universe 3 of 10 What can rocks show Climate (fossils, type of rock) 4 of 10 Theory of continental drift states..... Tectonic plates all moving due to convection currents 5 of 10 Proving continental drift Unable to disprove it, magnetism of rocks on sea-bed, continents fit together like a jigsaw, fossils/rock types match on continents 6 of 10 Primary waves Emitted from an earthquake first, travel through solids and liquids, are longitudal (compressions and rarefractions) 7 of 10 Secondary waves Emitted from earthquake second, cause more damage, travel through solids only, are transverse (move side to side) 8 of 10 Distance wave moves= Speed of waves x time 9 of 10 Wave speed= Frequency x wavelength 10 of 10
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