| A | B |
|---|
| acceleration | the rate at which velocity changes over time; an object accelerates if its speed, direction, or both change |
| average speed | the total distance traveled divided by the total time taken |
| compression | the reduction of volume and increase in pressure of the air or combustible mixture in the cylinder prior to ignition produced by the motion of the piston toward the cylinder after intake |
| facetious | not taken serious |
| force | a push or a pull exerted on an object in order to change the motion of the object |
| friction | a force that opposes motion between two surfaces that are in contact |
| kinetic friction | moving force that opposes motion between two surfaces that are in contact |
| motion | an object's change in position relative to a reference point |
| net force | the combination of all of the forces acting on an object |
| Newton | The SI unit for force |
| ophthalmology | the branch of medical science dealing with the anatomy, function, and diseases of the eye |
| static friction | force that is applied but does not move |
| tension | stress that happens when force acts to stretch an object |
| velocity | the speed of an object in a perticular direction |
