15 terms

# C9 S1 and S2

#### Terms in this set (...)

speed equals distance divided by
time
When you know both the speed and direction of an object you know
velocity of the object
the steepness of a line on a graph is called the
slope
If you know a car traveled 200 kilometers in 4 hours, you can determine its
speed
When an objects position relative to another object is changing,
it is in motion
A place or object used for comparison to determine if an object is in motion is called
a reference point
average speed is
the total distance divided by the total time
vector quantities measure
magnitude and direction
Scalar quantities measure
magnitude only
In a distance v time graph a steep slope means
fast!!!

stopped
In a time v distance graph, time is usually on the
x-axis
Changes in velocity may be due to changes in speed and/or
direction
Instantaneous speed is the rate at which an object is moving
at a given instant in time
The total length of the actual path between two points is
distance
The total length and direction of a straight line between two points is
displacement