unit 8 test Flashcards
copernicus
heliocentric model
brahe
first observatory/ spent 20 years mapping the location of the stars
kepler
3 laws of planetary motion
galileo
first telescope/ jupiters moons
newton
3 laws of motion
all info at space comes frokm
light
3 examples of invissible radiation
radio waves
UV light
x-rays
reflecting telescope
mirrors
refracitng
lenses
radio
radio waves (dishes)
advantage of hubble telescope
allowed astronomers to study radiation that would otherwise be blurred by the atmosphere
mission of the voyager space probes
to fly by in our solar system
first amaercans landed on the moon
apollo 11
highlands
mountanous / light in color
maria
smooth and dark in cololr
rilles
deep narrow valleys
capture theory
earths gravity pulled random space object
simultaneous creation
moon and earth created at the same time
impact theory
large object clrashed into earth and debris became the moon
rotation
spinning on axis
revolution
orbiting an object
moon’s synchronous rotation
earth revolves and rotates 29 1/2 so the same side of the moon always faces earth
how fast is the earth revolving
67000
northern hemisphere is tilted toward the sun
summer
northern hemisphere tilted away from the sun
winter
umbra of an eclipse
darkest part
why does the moon get red
earths shadow blocks most of the suns light, but the light that isnt blocked is refracted which makes it appear red
phases of the moon
n m, wax c, 1 q, wax g, f m, wan g, 3 q, wan c
planets in order
mercury, venus, earth, mars, jupiter saturn uranus neptune
difference between gas giant and terrrestrial
gas giant are large and made of gas w no solid surface, terrestrial are rocky w solid surfaces
red planet
mars
smallest planet
mercury
what planet was discovered after disturbing another planets orbit
neptune
largest planet
jupiter
most similar to earth
venus
2 planets that rotate in the opposite direction
venus uranus
ice rings
saturn
2 planets that appear blue
neptune uranus
giant red spot
jupiter
brightest thing in the sky at dusk and dawn
venus
tilted planet
uranus
meteor comet asteroid
meteor: space debris,
comet: dust and rock surrounded by ice,
asteroid: comet without the ice