Lesson+1+&+2

1 Dimensional Kinematics
"the science of describing the motion of objects using words, diagrams, numbers, graphs, and equations"

﻿Vocabulary
distance - ( scalar ) how far an object has traveleld in total displacement - ( vector ) net/change in positio relative to some origin. Take direction in account speed - (scalar ) rate of change of postion, how fast you move velocity - (vector ) includes direction based on displacement speed in a specific direction acceleration - ( vector ) how fast speed/ velocity changes


 *  Scalars - quantities that are described by a numerical value ONLY
 *  Vectors - quantities that are described by a numerical umber AND a direction.

FOUR types of motion ever ! at rest - no motion constant - no acceleration increasing - starting slower ending faster steadily decreasing - starting faster and slowing down

﻿Postition Time Graphs
<span style="font-family: 'Courier New',Courier,monospace; font-size: 110%;">Postion time graphs are used to describe the motion of an object without words.instead the use of graphs, number sna dn equations are used to decribe the motion of an object. <span style="font-family: 'Courier New',Courier,monospace; font-size: 110%;">If the velocity of an object is constat the //slope// is constant, then the slope is constant (i.e., a straight line). If the velocity is changing, then the slope is changing (i.e., a curved line). If the velocity is positive, then the slope is positive (i.e., moving upwards and to the right).

<span style="font-family: 'Courier New',Courier,monospace; font-size: 110%;">Lab: Constant Speed <span style="font-family: 'Courier New',Courier,monospace; font-size: 110%;">Question: what does a graph of constant speed look like? Hypothesis: A graph of constant speed looks linear, because the speed of the object is sconstant and there is no accelelration so ther shold be no increase in the y-axis. Results: The graph of constat speed is linear. Data chart: a grap h of constant speed looks linear. It is a slanted line up thex- axis. The R 2 ﻿ showed that there was a 9.86 corallation and slope can simply be defined as "rise over run", in this case the slope was