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65 Cards in this Set

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What is the geocentric model of the universe? Who first proposed this model?
earth, moon, sun, Mercury, venues, mars Jupiter and Saturn, 5 planets and sphere of stars, All revolve around the earth. The man who first proposed this model was Ptolemy.
v Explain the view of the solar system that Copernicus developed? What is this model called?
The solar system that Copernicus had developed was Nicholas Copernicus in 1543. The model is called Heliocentric- sun is the center of the solar system. This is the view of the solar system, Moon revolves around the earth; earth and moon revolve around the sun Daily movement of the sun and stars caused by rotation of the earth.
What were Kepler’s laws of planetary motion
- Elliptical orbits – not circular
- Sun not centered in the orbit
Name all 9 planets in order -1
Mercury
Name all 9 planets in order -2
Venus
Name all 9 planets in order - 3
earth
Name all 9 planets - 4
Mars
Name all 9 planets - 5
Jupiter
Name all 9 planets -6
Saturn
name all 9 planets -7
Uranus
Name all 9 planets -8
Neptune
Name all 9 planets -9
Pluto
How did the Solar System Form?
It was created 4.5 billion years ago by the Milky Way galaxy.
a big mass and exploded. It was one time a big large fireball but eventually exploded.
What 2 forces keep the planets in motion around the sun?
gravity and interia
Name the Inner / rocky planets
Mercury, Venus, Earth and Mars
Name the outer / gas planets
Jupiter, Saturn, Urnaus, Neptune and Pluto.
What are asteriods
A piece of rock smaller than a planet orbiting the sun
What is the difference between an asteroid and meteoroid
Asteroids are larger than Meteoroids

Meteoroids do not orbit the sun
Meteoroids
Rocks in space

chunks of rock floating around in space
Meteors
Rocks in the atmosphere

Shooting stars- a meteoroid that enters the earth’s atmosphere
Meteorites
Rock that hits the planets
Meteorites
Rocks that hit planets

a meteor that does not completely burn and strikes a planet
What is a comet
A mass of rock and dust mixed with frozen water, gas “Dirty Snowball”
Name the parts of a comet
Head-
-Nucleus- Solid center of a comet
-Coma- Gas cloud surrounding comet
Tail
Which way do comets tails piont and why?
always piont away from the sun
Beacuse the soalr wind pushes it away
Where are commets found
Outside of the orbit of pluto called the oart cloud
Chart - Mercury
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
rocky
57,910,000 km
88
58.6
none
none
Chart earh
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
rocky
150 million km
365.25
23.56
none
1
Chart Jupiter
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
gas
7778 million km
11.9
9.65
3
36
Chart Saturn
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
gas
1.47 billion miles
29 and a half
10.39
7
33
Chart Uranus
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
Gas
2.9 billion km
84
17.14
11
27
Chart Neptune
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
find out!
Chart pluto
rock or gas?
distance from the sun?
year?
day?
rings?
moons?
frozen gass
5.9 bilion km
248
6.4
none
1
Why doesnt Mercury have craters?
there is no atmishpere, which and it protects and burns up the mediors, it has no weather or water to aroud them, close to the sun
Why is Mercurys sky black?
There is no atmisphere to scatter the light
What is special about Venus's rotation?
It roatates clockwise while all others rotate counter clockwise
Why doesn't earth have any craters?
Earth has a atmosphere to burn them up. And earth has weather and water so the craters cant erode
Name 4 reasons we are intrested in mars
1. It has a simillar train
2. There are ice caps on its poles
3. Similar atmisphere
4. its close to us
What is special about Uranus's rotation?
It roates on its side
Which planet was first discovered by a telescope?
Uranus
Which planet was first discoved by a mathmatical equation?
Neptune
Do comets allways have tails?
No, beacuse it can be floating around
Where do most meteoroids come from? What causes a meteor shower?
They are passing comets. They are caused by peaces of comets.
Why does the surface of the moon or Mercury have many craters while the surface of Venus or the Earth does not?
The surface of Mercury has many craters because there is no atmisphere on Mercury, and atmishperes burn up craters
How did Copernicus explain, in his theory, why the sun, moon and stars “appear” to be going around the earth?
because the Moon revolves around the earth; earth and moon revolve around the sun Daily movement of the sun and stars caused by rotation of the earth.
What happens to the distances between the planets as you get farther from the sun?
you lose some gravitational pull of the sun so the planets should get further away
What are 4 discoveries that Kepler made about planetary motion?
The balance between gravity and inertia work together to keep planets in orbit Sun has over 99 % of the mass in solar system Gravity from sun keeps planets in orbit Inertia keeps planets from being drown into the sun.
Pluto is located in what region of space?
the kuiper belt
What causes the banding appearance on the gas giants? What are the spots?
Winds cause the bandings, and hurricans are the spots
What is the hottest planet in the solar system and why?
Venus, there is a yellow layer of clouds that keeps venus warm
What are some famouse comets?
Hale – bop
Helleys – once every 76 years
Name the planets from biggest to smallest
jupiter, saturn, Uranus, neptune, earth, venus, mars. mercury and pluto!
Name planets from biggest to smallest
jupiter, saturn, uranus, neptune, earth, venus, mars, meurcury, and pluto
Which planets have rings
jupiter saturn uranus neptune
Which planet has the largest range in tempature?
Mercury
explain y the rocky planets are closer and the gas planets are father away?
b/c the rocky ones are heavier and they did not get pushed away by the solar winds from the sun
wat r kelpers 3 laws
- eliptical
- suns not center in the orbit
- travles slower speed
What is the diffrence of inner and outer planets
inner = rocky
outer = gas
outer is bigger than inners
Name the gas Giants
jupiter
saturn
uranus
neptune
Which have only 1 moon
earth
pluto
2 moons?
mars
Were do most meriods come from
melting commets
Which planets day is longer than its year?
venus
Were do comets come from?
the oart cloud and kuiper belt
How did the sun start to burn?
gravity puled the mas in the more mass = more gravity then compacted and so much pressure makes it burn