## Glossary of Inertia

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- What two groups did Aristotle divide motion?
- Natural and Violent motion

- What was natural motion?
- The motion of an object either in or trying to get in its natural place

- What was violent motion?
- Any motion imposed on an object by an outside sourse

- Is violent motion scientific?
- Nope - you can't test it!! muah ahahahha

- What was Copernicus the first to do?
- Show that the earth wasnt stationary

- With what two things did Copernicus prove the world wasn't stationary?
- Telescope and Mathematics

- Who was the first to show Copernicus' theory was possible?
- Galileo

- If a ball is pushed down a ramp and back up again, why will the ball never reach the same hight?
- Friction

- What is friction?
- Any force that opposes motion

- Describe Newtons First Law.
- An object at rest will remain at rest. An object in motion will remain in motion IN A STRAIGHT LINE (unless effected by outside force

- What is inertia determined by?
- Mass

- What is mass?
- The measure of how much stuff is in an object; measured in kg

- Is weight or mass a constant?
- Mass is a constant

- What is weight?
- a measure of gravity; measured in Newtons

- What is the formula for transferring a kg into a newton?
- 1kg=10N