| A | B |
|---|
| kilogram | standard unit of mass |
| independent variable | the variable that is manipulated |
| meter | standard SI unit of length |
| slope | the rise divided by the run on a graph |
| dependent variables | responding variables |
| linear relationship | a relationship that produces a graph with a constant slope |
| precision | the degree of exactness to which the measurement of a quantity can be reproduced |
| quadratic relationship | when one variable varies directly with the square of the other variable |
| seconds | the standard units of time |
| significant digits | the digits that are valid |
| accuracy | the extent to which a measured value agrees with the standard value of a quantity |
| time interval | the difference between two clock readings |
| reference point | the chosen position used to compare the positions of objects |
| clock reading | a measurement of time |
| displacement | the change in position of an object |
| position | the separation between an object and a reference point |
| distance | the separation between two objects |
| scalar | a quantity that has only magnitude |
| speed | often the magnitude of velocity |
| vector | a quantity that has both magnitude and direction |
| g | the constant acceleration that acts on falling bodies |
| acceleration | the slope of a velocity-time graph |
| constant acceleration | results in a velocity that changes at a constant rate |
| Net Force | the vector sum of all forces acting on an object |
| force | an agent of change...a push or a pull |
| friction force | a force that opposes motion |
| static friction force | the force between surfaces that opposes the start of motion |
| kinetic friction force | the force that opposes motion between two surfaces that are in contact |
| inertia | the tendency of an object NOT to change its motion |
| kinematics | the study of motion |
| Newton's First Law | F=0 |
| Newton's Second Law | F=ma |
| Newton's Third Law | For every action, there is an equal an opposite reaction. |
| The Law of Inertia | Newton's First Law |
| newton | a unit of force |
| action-reaction forces | the pair of opposite but equal forces that objects exert on each other |
| physics | the study of everything! |
| Normal | a math term meaning "perpendicular" |
| Normal Force | a contact force |
| resultant | the sum of all vectors |
| equilibrium | a state of rest or constant velocity |
| equilibrant | a vector that creates equilibrium |
| gravity | an attractive interaction between objects with mass |
| trigonometry | the math that deals with the relationships among angles and the sides of triangles |
| drag | friction-like force caused by air resistance |
| chocolate | brain food |
