| A | B |
|---|
| Force | a push or pull exerted by one object or another |
| nonontact forces | force exerted by an agent that does not touch the reciever |
| gravitational force | mutual force of attraction exerted by particles of matter |
| mass | amount of matter present in an object |
| weight | gravitational force exerted on an object |
| buoyant force | directional force exerted upward by a liquid on a submerged mass |
| frictional force | force that opposes motion between two objects in contact with each other |
| electrical force | force that causes oppisitly charged materials to attract each other |
| magnetic force | the attraction or repulsion that one magnet exerts on another |
| elastic force | force exerted by material when it is stretched |
