15 terms

C9 S1 and S2

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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
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