| A | B |
|---|
| motion | a change in position during a certain time |
| speed | rate of which an object moves |
| velocity | speed in a given direction |
| accelaration | the rate of change in velocity |
| acceleration | the rate of change in velocity |
| momentum | the mass of an object multiplied by its velocity |
| force | push or pull |
| field forces | electricity,magnetism,gravity |
| mechanical forces | the force that is made when contact is made on an object |
| balanced forces | when forces are balanced there is no change in motion |
| mass | the amount of matter in an object |
| weight | a measure of the pull of gravity |
| gravity proportional to time and distance | strength of gravity is proportional to the mass of the objects and inverse |
| Newton's 3rd law of motion | the law of interia obj will remain in motion unless acted on by an unbalanced force |
| Newton's 2nd law of motion | law of force- force accelelaration and mass are related |
| friction | a force that opposes motion |
| inertia | the ability of an object to remain at rest or stay in motion |
| speed formula | s=d/t |
| acceleration formula | a=(sf-si)/t |
| momentum formula | M= m x s |
| speed units | m/sec |
| momentum units | kg-m/sec |
| acceleration units | m/sec2 |
