Space
- Created by: Tom Bowen
- Created on: 28-05-14 10:48
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- Space
- Order of Planets
- 1. Mercury (MY)
- 2. Venus (VERY)
- 3.Earth (EXCELLENT)
- 4. Mars (MOTHER)
- 5. Jupiter (JUST)
- 6. Saturn (SENT)
- 7. Uranus (US)
- 8. Neptune (NINE)
- 9. Pluto (PIES)
- Formation of the Solar System
- 1. due to GRAVITY a HYDROGEN gas/dust collapsed and formed THE SUN
- 2. GRAVITATIONAL forces-KINETIC+HEAT ENGERY
- 3. dense center (PROTOSTAR) surrounded y thin disc. NUCLEAR REACTION turned HYDROGEN-HELium
- 4. GRAVITY=particles collect together=PLANETARIUMS. = PLANETS
- 5. large planets collide=larger
- Rocky + pulled closer to sun
- 6. very large planets made of gas
- Ateroids
- ASTEROID BELT = MARS & JUPITER
- thousands on asteroids
- what are they
- size of a pebble to 1,000 km
- left over material from creation
- ASTEROID BELT = MARS & JUPITER
- Comets
- ELLIPTICAL orbit
- only appears every few years
- speeds up near sun, slows down when further away
- RADIATION PRESSURE
- tail forms when near sun-melting
- tail points away from sun
- tail forms when near sun-melting
- RADIATION PRESSURE
- ice and rocks
- ELLIPTICAL orbit
- Gravity
- force of attraction
- force increases with mass
- force decreases with distance
- smaller body=larger orbit- high speed
- Satellites
- natural or manmade
- moon=natural
- Geostationary/polarorbitting=manmdae
- GEOSTATIONARY
- used for communication
- high orbitting over equator,
- stay at same point
- orbit same time as earth
- POLAR ORBITTING
- used for monitoring weather+surveilance
- low orbit, passes over North+South poles
- many times a day
- GEOSTATIONARY
- natural or manmade
- Sun's source of energy. THEORIES
- 1.burning coal (this gives 3000 years)
- 2. comet falling into sun=heat energy (20million years0
- 3. sun+earth formed same time (20million)
- .4. Erosion needed to be hundreds of millions
- 5. Darwin species= hundreds of millions)
- star light
- white light=continuous spectrum
- white pass through gas cloud
- absorption spectrum - black lines
- identify different gases
- tells us tempertaue
- absorption spectrum - black lines
- sun-Hydrogen + Heluim
- Nuclear fusion
- sun=ball of gas
- core temp=15 million-allows nuclear fusion
- radiates outwards+converted to surface by currents
- solar flares blast particles-solar wind
- magnetic field protects earth
- sun=half way through life
- Red shift
- light-continuous spectrum, red -violet
- red-end=longer wavelenght+lower frequency
- violet-end=short wavelength+high frequency
- if light moves towards us-wavelength gets shorter +frequency gets higher
- shifted to blue
- if light moves away-wavelength longer+frequency gets lower
- shifted to red
- light emitted by distant galaxies have ABSORPTION LINES=HYDROGEN
- all galaxies move away. amount of red shift-how fast galaxies are moving
- greater shift=greater speed
- Order of Planets
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