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Bucket Ball Rating: 4

Level: Beginner Duration: 2 - 4 class periods
Grade Level: NA Author: Pitsco
Materials:  Klean Klay (Blue), Mass Plates (pkg of 20), Trebuchet Kit, Trebuchets Teacher’s Guide, 30-Meter Wind-Up Tape Measure, bucket, masking tape .

Objective

Launch a clay ball into a bucket at a given distance from the trebuchet.

Description

This activity simulates using the trebuchet in a battle. As trebuchet engineers, you will use scientific principles and collect data to configure the trebuchet to launch a clay ball into a bucket.

Procedures

Your teacher will give you a mass of clay and several mass plates. Given all you have learned about the trebuchet, it is your job to launch the clay ball into the bucket. Set up your trebuchet at the line your teacher has created, and configure the trebuchet to throw the clay balls in a high arc with distance.

 

You will begin by using the mass of clay and rolling it to the size you want. You will estimate the number of mass plates you think it will take to reach the target and load them on the weight support. You can also adjust the length of the string, the release point of the trigger, and the position of the weight support on the lever arm.

Discussion

How many throws did you have to do before you made the clay ball land in the bucket? What adjustments did you have to make?

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