| A | B |
|---|
| inertia | resisting a change in motion |
| motion | when distance between 2 objects changes |
| reference point | place from where you determine if an object is in motion |
| friction | when 2 surfaces rub against each other |
| gravity | force that pulls objects toward each other |
| air resistance | fluid friction, occurs when objects fall through air |
| terminal velocity | fastest speed an object reaches |
| action-reaction | Newton's 3rd Law of Motion |
| law of inertia | Newton's 1st Law of Motion |
| F=ma | Newton's 2nd Law of Motion |
| sliding friction | 2 solid surfaces sliding over each other |
| rolling friction | objects rolling over each other |
| static friction | friction of non-moving objects |
| fluid friction | occurs when objects go through gasses and liquids |
| pulley | cord wrapped around a grooved wheel |
| inclined plane | a flat, sloped surface |
| wedge | inclined plane that moves |
| lever | bar that pivots on a fulcrum |
| wheel & axle | 2 round objects that are connected and rotate around an axis |
| screw | inclined plane wrapped around an inclined plane |
| work | force that causes an object to move |
| potential energy | stored energy |
| kinetic energy | moving energy |
| fulcrum | fixed point that a lever pivots around |
