Astronomy 6 Flashcards
Where is out solar system?
Milky way
What is the equation of weight?
weight (Newtons) = mass (kg) x gravitational field strength
Weight loc
measured in
1
newton
Gravitational field symbol
stag
What is a galaxy?
loc
A large collection of billions of stars
2
Solar system loc
1
What is the universe?
loc
A large collection of billions of galaxies
3
universe symbol
mr incredible
Sun location
1
moon loc
2
What is the gravitational field strength on the moon
Moon - 1.6N/Kg
List of planets
Mercury, venus, earth mars, Jupiter, Saturn uranus
how far away is the sun
93bn miles
Moon luminous or non?
Non luminous
Why we see them
reflect light from the sun
how many moons does mars have
2 moons
How long for the moon to orbit earth
29.5 days
Planet loc
4
comets loc
5
asteroid loc
6
satellite loc
7
How do you calculate the speed of a satellite?
speed = distance / time
distance travelled = 2 x pie x radius of orbit
What is the orbits of comets like?
Elliptical
