Copyright 2006 - TeacherGeek - Ping-Pong Ball Launcher Activity - All Rights Reserved
Page 1
Ping-Pong Ball Launcher
™
Step 16:
Creating an Angle Finder
+
=
Step 15:
Adjust The Angle
1
2
Cut a 4” wire. Bend it so the end hooks around at the end (
C
).
Cut a protractor (
D
) from the Launcher Protractor Sheet. Punch a hole
in the middle of the circles in the upper left hand corner of the protrac-
tor. You can download additional protractor sheets at:
http://www.teachergeek.org/protractor.pdf *best printed on cardstock
Place the hook end of the wire into the hole in the corner of the protractor.
3
3
2
You can change the angle of your launcher
by sliding the perpendicual adaptor
A
up and
down the dowel
B
.
A
B
C
1
D