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Middle School science students make catapults

Working, student built machines were tested to see how far marbles launched would travel
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By Calen McKinney

Campbellsville Middle School integrated science students are studying Newton's laws of motion by making catapults.

Students in Amy Knifley's classes were asked to make a catapult that would launch a marble.


The catapult had to have an arm or a sling. They could be no taller than 2 meters, and must have a triggering mechanism.

After spending some time researching catapults, students formed groups and went to work making their own.

When the catapults were finished, students launched them to see how far their marbles would go.

They were asked to calculate the distance their projectile traveled, as well as the initial velocity.

Points were given based on how far the projectile traveled, and for creativity.

The writer, Calen McKinney, is Public Information Officer for Campbellsville Independent Schools (CIS)


This story was posted on 2018-04-08 06:05:19
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McKayla Falls and Serenity Ford build catapults



2018-04-08 - Campbellsville Middle School, Campbellsville, KY - Photo by Calen McKinney, Public Information Officer, Campbellsville Independent Schools.
Campbellsville Middle School seventh-grader MaCayla Falls, at left, and eighth-grader Serenity Ford make their catapult. CMS students in Amy Knifley's classes were asked to make a catapult that would launch a marble. Integrated science students are studying Newton's laws of motion by making catapults. - Calen McKinney

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Building catapults: Bia Moura and Blake Settle



2018-04-08 - Campbellsville Middle School, Campbellsville, KY - Photo by Calen McKinney, Public Information Officer, Campbellsville Independent Schools.
Campbellsville Middle School eighth-graders Bia Moura, at left, and Blake Settle make their catapult. CMS students in Amy Knifley's classes were asked to make a catapult that would launch a marble. Integrated science students are studying Newton's laws of motion by making catapults. - Calen McKinney

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Catapult experimentation: Karley Morris and Alexis Thomas



2018-04-08 - Campbellsville Middle School, Campbellsville, KY - Photo by Calen McKinney, Public Information Officer, Campbellsville Independent Schools.
Campbellsville Middle School eighth-graders Karley Morris, at left, and Alexis Thomas make their catapult, as part of experiments conducted in Amy Knifley's classes at CMS. - Calen McKinney

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8th graders Tayler Thompson, Brae Washington work on catapult



2018-04-08 - Campbellsville Middle School, Campbellsville, KY - Photo by Calen McKinney, Public Information Officer, Campbellsville Independent Schools. Campbellsville Middle School eighth-graders eighth-graders Tayler Thompson, at left, and Brae Washington work on their catapult. CMS students in Amy Knifley's classes were asked to make a catapult that would launch a marble. Integrated science students are studying Newton's laws of motion by making catapults. - Calen McKinney


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