Physics - P1 0.0 / 5 ? PhysicsAstronomyEarth in spaceGCSEOCR Created by: EmilyGigneyCreated on: 08-03-16 19:37 Distance is equal to Speed x Time 1 of 18 Parallax Nearer stars move slightly on the background of distant stars, measured using the parallax angle 2 of 18 Order of Planets Mercury, venus, earth, mars, jupiter, saturn, uranus, neptune 3 of 18 The speed of light 300,000 km/s 4 of 18 Distance of stars Brightness, parallax 5 of 18 Brightness of stars the dimmer the stars the further away they are 6 of 18 Moons Balls of rock with a near circular orbit around different planets 7 of 18 Asteroids irregular lumps of rock mostly between mars and jupiter on a near-circular orbit 8 of 18 Comets Balls of rock or ice with an elongated orbit around the sun 9 of 18 Dwarf planets Small round lumps of rock that orbit the sun, for example pluto 10 of 18 A light year is ... ... the distance light travels in a year 11 of 18 Our galaxy milky way 12 of 18 The universe expanding is called the ... ... Big Bang 13 of 18 How are stars formed? Dust and gas is pulled together by gravity until nuclear fusion happens 14 of 18 Nuclear Fussion Forcing helium nuclei together, this creates other elements which spread through space when the star dies and explodes 15 of 18 We can see that the universe is expanding due to ... ... Red Shift 16 of 18 Red Shift When stars are moving away they move closer to the red in the spectre therefore causing red shift 17 of 18 Red shift continued Red shift is the increase of wavelength of light waves. 18 of 18
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