Trivia Questions

Question 1

mass sun/mass earth

Answer 1

333000

Question 2

mass earth/mass moon

Answer 2

81

Question 3

Measured lengths (in meter) in astronomy:
- earth to most remote known quasar
- earth to most remote known normal galaxies
- earth to nearest largest galaxy (M31, Andromeda galaxy)
- sun to nearest star (Proxima centauri)
- one lightyear
- mean orbit radius of earth about the sun
- mean distance from earth to moon
- mean radius of earth
- equator to north pole
- altitude of satellite orbiting earth

Answer 3

• earth to most remote known quasar: 1.4x10^26
• earth to most remote known normal galaxies: 9x10^25
• earth to nearest largest galaxy (M31, Andromeda galaxy): 2x10^22
• sun to nearest star (Proxima centauri): 4x10^16
• one lightyear: 9.46x10^15
• mean orbit radius of earth about the sun: 1.5x10^11
• mean distance from earth to moon: 3.84x10^8
• mean radius of earth: 6.37x10^6
• equator to north pole: 1x10^7
• altitude of satellite orbiting earth: 2x10^5

Question 4

Sizes (m) of atomic particles:
- dia of hydrogen atom
- dia of atomic nucleus
- dia of proton

Answer 4

• dia of hydrogen atom: 10^-10
• dia of atomic nucleus: 10^-14
• dia of proton: 10^-15