Multiple choice general knowledge

Galileo was an Italian astronomer who:

  1. Developed the telescope

  2. Discovered 4 satellites of Jupiter

  3. Discovered that the movement of the pendulum produces a regular time measurement.

  4. All are correct
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Galileo discovered Jupiter's four largest moons (Io, Europa, Ganymede, Callisto) in 1610 and discovered that a pendulum swings with a regular time period regardless of amplitude. However, the telescope was invented by Hans Lippershey in 1608; Galileo improved the design but did not develop or invent the original device.

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