Physics 1 (Earth and the universe)

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  • Created by: Sam_C
  • Created 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

Other cards in this set

Card 2

Front

Apparent brightness (less accurate) OR parallax (mathematical so more accurate)

Back

Measuring stars

Card 3

Front

Redshift shows galaxies moving apart, space is filled with microwaves, oldest stars are younger than universe

Back

Preview of the back of card 3

Card 4

Front

Climate (fossils, type of rock)

Back

Preview of the back of card 4

Card 5

Front

Tectonic plates all moving due to convection currents

Back

Preview of the back of card 5
View more cards

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