In What Way Did Galileo Improve on the Physics of Aristotle

question 15

Multiple Choice

In what way did Galileo improve on the physics of Aristotle?

• A) Galileo understood that no force is needed to keep an object moving in a circle at constant speed.
• B) Galileo understood that "natural" (or unforced) motion occurs at constant velocity.
• C) Galileo understood that a force is needed to keep an object moving at constant velocity.
• D) Galileo understood that energy is always conserved in every physical process.
• E) Galileo understood that the gravitational force acts between every pair of objects in the universe.

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