Bode's Law

1. Who is Jan H.Oort ?

a Dutch astronomer

b English astronomer

c French astronomer

d Irish astronomer

2. On what depends the period of revolution of planets?

a Mass

b Chemical nature

c Size

d Distance to the Sun

3. What is Bode's Law?

a A law to determine mass

b A law to determine distance between two planets

c A law to dtermine diameter

d A law to determine distance from the Sun

4. Which diameter determine a planet ?

a The diameter is upper 400 km

b The diameter is upper 600 km

c The diameter is upper 800 km

d The diameter is upper 700 km

5. At the end of how many years can we observe the Halley's comet ?

a 4

b 55

c 67

d 76