Galileo discovered that the Moon had phases.
Galileo discovered that Venus had phases.
Galileo discovered that planet Mercury had phases.
All the above is correct
None of the above is correct

2) Pick the correct statement:

Galileo discovered 4 of Jupiter's moons.
Galileo discovered 4 of Saturn's moons.
Galileo discovered 3 of Saturn's moons.

3) What did "De motu" discuss?

The Sun
The Moon
Motion
Sunspots
Jupiter's Moons

4) How much power did Galileos first spyglass (telescope) have?

two-powered
three-powered
five-powered

5) Pick the correct statement:

The reflecting telescope was invented only after Galileo died.
The refracting telescope was invented only after Galileo died.
The reflecting and refracting telescope were both only invented only after Galileo died.

6) What was the magnification power of the 'telescope' Galileo used in 1609?

10
20
50
100

7) Did Galileo shout eureka !!! when he made his 10th astronomical discovery?

Yes
No

8) Galileo's telescope was too primitive for him to discover sunspots.

True
False

9) The moons Galileo discovered is also known as the Galilean moons (in honour of Galileo).

True
False

10) Pick the true statement:

Galileo discovered Jupiter's rings.
Galileo discovered Saturn's rings.
Galileo discovered 2 comets.