16 terms

Kinematics

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Vector
A quantity that has MAGNITUDE and DIRECTION
Scalar
A quantity that has ONLY magnitude
Distance
The total length of the route an object travels when it moves.

Scalar
Displacement
The change in position of an object

The moving of something from its place or position.
Includes DISTANCE and DIRECTION

Can be calculated on a velocity vs. time graph by finding the area between the line and the axes.

Vector
Speed
The rate at which an object is able to move or operate.

Scalar

= Distance/time
Velocity
SPEED and DIRECTION

Vector

= Displacement/time
= df - di/time
Acceleration
Speeding up
Slowing down
Changing direction

VELOCITY and DIRECTION

= Change in Velocity/time
= Vf - Vi/time
Position vs. Time Graph
Displays the position of an object over the course of time.
Slope
= Rise/Run
=y2 - y1/x2 - x1

Shows velocity on a Position vs. Time graph
= d/t = velocity

Reveals information about an objects acceleration on a Velocity vs. Time graph
= v/t = acceleration
Velocity vs. Time Graph
Displays the velocity of an object over the course of time.
Positive velocity
Object is moving in a RIGHTWARD direction.
Line is within the positive region of the velocity vs. time graph (ABOVE the x-axis).
Negative velocity
Object is moving in a LEFTWARD direction.
Line is within the negative region of the velocity vs. time graph (BELOW the x-axis).
Constant velocity
NO acceleration
Changing directions
The line crosses THROUGH the x-axis on a velocity vs. time graph.
Speeding up
Magnitude is getting LARGER on a velocity vs. time graph.
Line moving AWAY from x-axis (whether in positive or negative region).
Slowing down
Magnitude is getting SMALLER on a velocity vs. time graph.
Line moving TOWARDS x-axis (whether in positive or negative region).