Universe Flashcards
1
Q
Optical telescope
A
Light
Gives an actual image
On land
2
Q
Disadvantages of optical
A
Light pollution Can’t be used in day or in cities Gases of atmosphere interfere Hard to see extreme distances Need light energy ie can’t see black holes
3
Q
Radio telescope
A
Sound
Radio waves
Computer generated image
4
Q
Advantages of radio
A
Can use in daylight
No interference from light or gases
See blackholes
5
Q
Nuclear fusion
A
Hydrogen ~~~helium
H~~~he
6
Q
Life of a star
A
Nebula, Main sequence,red giant,white dwarf
Nebula, main sequence,supernova,blackhole
Neutronstar
7
Q
Universe (small to large)
A
Planet Star Solar system Solar system cluster Galaxy Universe
8
Q
Why is it called the Milky Way
A
Greeks believed a baby spilled milk
9
Q
Types of galaxies
A
Spiral
Elliptical
Barred
Irregular
10
Q
Light year
A
Distance light travels in a year
11
Q
Locating a blackhole
A
Radio waves
X-ray
