| A | B |
|---|
| Friction | force that slows down motion |
| Inertia | law that says that motion remains the same until a force acts upon it |
| Gravity | a natural force that pulls things toward a larger object |
| Lever | Simple machine that helps to unbalance forces |
| Wheel and Axle | Simple Machine that helps something move |
| Screw | Simple Machine with rotating edge |
| Wedge | Simple Machine with an edge |
| Position | Where something is located |
| Speed | How fast something moves |
