Toy Car Lab
Conclusion
Written Explanation
• In this lab we found a direct
relationship between the position
and the time. This means that as
time increased, the position of the
car also increased.
General Equation
• From the graph we got the mathematical
equation
Position = (0.37 m/s)(time) + 0.02 m
General Equation
• From the graph we got the mathematical
equation
Position = (0.37 m/s)(time) + 0.02 m
So…
X = V (t ) + X0
or
Position = Velocity(time) + Initial Position
Meaning of slope and y-int
X = (0.37 m/s)(time) + 0.02 m
Meaning of slope and y-int
X = (0.37 m/s)(time) + 0.02 m
• The slope of 0.37 m/s means that for
every second the car was traveling, it
moved 0.37 m.
Meaning of slope and y-int
X = (0.37 m/s)(time) + 0.02 m
• The y-int. means that when time was zero
seconds the car was at the 0.02 m mark.
This means that we started the stopwatch
too late. The car was already past the
starting point.
Graph Stuff
What does the slope of a position-time
graph tell you???
X
t
Graph Stuff
What does the slope of a position-time
graph tell you???
X
The Velocity!
t
Graph Stuff
Which object is traveling FASTER?
X
t
Graph Stuff
Which object is traveling FASTER?
X
t
The Blue One!
Graph Stuff
Are the objects going forward or backwards?
X
t
Graph Stuff
Are the objects going forward or backwards?
X
t
Forwards because they
have a positive
slope
Graph Stuff
What is the object now doing?
X
t
Graph Stuff
What is the object now doing?
X
t
Going backwards…negative slope
Graph Stuff
What is the object doing?
X
t
Graph Stuff
What is the object doing?
X
t
Standing still (not moving)
Graph Stuff
What is the object doing?
X
t
Graph Stuff
What is the object doing?
X
Does NOT start at the
origin.
Goes
forward
t
at a constant velocity. Stops. Goes
forward at a faster constant velocity.