| A | B |
|---|
| simple machine | machine with few moving parts |
| wheel and axle | simple machine with 2 cylindrical objects of different size |
| wedge | simple machine thick on one side-thin on other |
| screw | simple machine with inclined plane wrapped around bar |
| inclined plane/ramp | simple machine with sloping surface |
| lever | simple machine with rigid bar pivoting on fixed point |
| pulley | simple machine made of wheel, rope, chain |
| imbalance | when things are not equal |
| inertia | resistance of object to change |
| mechanical energy | amount of work object can do |
| momentum | quantity defined as product of mass and velocity |
| motion | objects change in position relative to a point |
| net force | combo of all forces acting on object |
| Newton | unit for force- symbol "N" |
| unbalanced force | nonzero netforce which changes motion |
| weight | force of gravity on objects mass |
| work | force exerted on object causing it to move a distance |
| spring scale | tool used to measure force or weight |
| balance | instrument for weighing equality between 2 sides |
