True or false: what Aristotle got wrong

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   A force is needed to keep a body in uniform motion.

2. Statement is true

   Yes

   Statement

   In practice a force is needed to counter friction.

3. Statement is true

   Yes

   Statement

   Aristotle's view on this was wrong.

4. Statement is true

   Yes

   Statement

   With no external force, a moving body keeps moving.

5. Statement is true

   Yes

   Statement

   Galileo's work on inclined planes led to the law of inertia.

Explanation