**PRACTICING YOUR ESTIMATIONS**

Mark a starting point and walk 10 steps. Walk naturally.
Measure this distance. Calculate the distance traveled for each of
your steps.

__Distance__ = _________

Step

Using the previous information and
Two Angle
Method, calculate the height of the edge of the school building.
WE WILL ALL GO OUTSIDE TOGETHER FOR THIS... __WAIT__.

Building edge height ___________.

**MEASURING THE VELOCITY OF A MOVING OBJECT**

In the classroom is a HotWheels™ set up. On this set up, measure
the velocity of the HotWheels^{TM}
train as it passes over the second hill. The length of the train is
the distance used to calculate the average velocity. The time
measured is the time for the entire train to pass one point on the
center of the hill.Treat this as a normal lab and repeat the process
a number of times and take the average of the trials.

HotWheels™ train velocity: _____________

NOTE: The train is heavier than a single car. When the train is in
motion, it will cause the track to slide around. Hold the track down
firmly to prevent accidents.

If you use or find this page useful or have any
comments, please contact the author so maybe he'll do more.
Author: Tony Wayne

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