astronomy test one Flashcards
what is heliocentric
when the sun is the centre
what is geocentric
when the earth is the centre
what are three difference between inner and outer plants
- rocky, gaseous
- small, large
- hot, cold (in comparison)
when further they rotate slower
what is a solar eclipse
when the moon is between the sun and earth therefore casting a shadow on the earth.
what is a lunar eclipse
the earth is between the sun and moon creating a shadow on the moon so it appears a reddish colour.
what direction does the sun rotate and revole
counterclockwise
what is the name given to groups of stars that form patterns
constellation
what is another name for the North Star
polaris
can people in Australia use the North Star as a reference point
no - they are below the equator and see a difference set of stars
list three difference between stars and plants
hot, cold
large, small
create light, reflect light
no atmosphere, atmosphere
list plants in order largest to smallest
Jupiter, Saturn, uranus, neptune, earth, venus, mars , mercury
why does the earth have different season
the tilt and revolution
what are the different phase of the moon
new moon
waxing crescent
1st quater
waxing gibbous
full moon
waning crescent
3rd quatre
waning gibbous
what does waxing mean
getting bigger
what does waning mean
getting smaller
what phase of the moon follows waxing gibbous
full moon
the solar system family is defined as
the family of the sun, planets and their moon
which of these words indicate the moon is closest to the earth
perigee
how is a moon different then a planet
planet revoles around the sun and moons remove around a planet
where is the sun at noon in decemember in Toronto
low in the south
where is the sun at noon on march 21 on the equator
straight up
where is the sun at noon on June 21 in Toronto
high in the south
where is the sun at noon on June 21 on the equator
straight up
where is the sun at noon on June 21 in southern Argentina
high in the north
