User's Manual

Test Your Skills—Stop the motor on time
1. Build a car driven by one motor. See building instructions on page 25.
Follow steps 1 to 4.
2. Program the car to move forward for one second
3. Place a measuring tape on the fl oor and test how far the car travels in
one second. Repeat the test three times to calculate an average distance.
4. Place a LEGO fi gure or other object on the fl oor next to the measuring
tape at a distance equivalent to that covered in one second.
5. See if the car travels the correct distance without knocking the
fi gure over.
6. Repeat points 3,4 and 5 changing the time to 2, 4 and 6 seconds and
calculate the distance to be covered each time.
NOTE: This is a good classroom activity to try with several groups of children, each performing the same task and compar-
ing results. Let each group make a graph with time and distance and plot in their results.
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