Unit Project Descriptio

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1 Unit Prject Descriptin: Using Newtn s Laws f Mtin and the scientific methd, create a catapult r trebuchet that will sht a marshmallw at least eight feet. After building and testing yur machine at hme, yu will use yur data t write a full reprt described in detail belw and n the rubric. The reprt is the majrity f yur grade. By having these tw requirements, each student may earn a 95. T earn the remaining five pints, a target must be accurately hit frm five feet back. Each persn will be given five tries t hit this mark. Unit prjects cunt as tw test grades. Requirements: Build a catapult r trebuchet that: is n mre than 2 x 2 x 2 in size. is made f, but nt limited t, elastic materials, wd, plastic, r pvc pipe (ther materials must be pre-apprved). **Try t use materials yu already have arund the hme t build yur prject. the launcher must be able t hld a large and small marshmallw. the trebuchet must have a weight; catapults d nt have weights. Reprt: All materials must be listed. Prcedures must be numbered, sequential, and set-up must be illustrated. Quantitative Data: Test catapult r trebuchet 10 times with a small marshmallw and 10 times with a large marshmallw. Recrd distances f each thrw. Put abve data int a table t shw cmparisns. Create a graph using same data and label bth axes. Cnclusins: Make inferences accrding t data results. List pssible limitatins r errrs I am aware that my child,, has a science prject due n and is wrth TWO test grades. Parent Signature Student Signature Date Date

2 Name Class Date MOTIONS AND FORCES Unit Prject REPORT: Materials Cmpletely Mstly Partially Prly Materials are listed. Prcedures Cmpletely Mstly Partially Prly Written in numbered steps. Sequential. Cntains an actin verb. Set-up drawn (in clr if pssible). Observe and Analyze Cmpletely Mstly Partially Prly Prcedure is fllwed and data are carefully gathered. Quantitative Data Cmpletely Mstly Partially Prly Measurements are accurate and precise. Data are clearly rganized in tables. Graph has a title, its axes are labeled and units are described. Cnclusins/Reprt Cmpletely Mstly Partially Prly Name, perid, date, title. Accurate spelling and grammar. Cmpare data: All bservatins are described using Newtn s Laws. Analyze data: All bservatins are analyzed using Newtn s Laws. Pssible limitatins r errrs listed. Inferences are cnsistent with the data. PROJECT: Catapult/Trebuchet Cmpletely Mstly Partially Prly Respnsible (Did nt need extra cpy f paperwrk.) Signed Prject Slip. 8 thrwing distance target pints Class Participatin during cmputer lab research time. Cmments: Ttal:

3 Name Class Date Materials: (List all materials using bullets.) Catapult Reprt Prcedures: (Building prcedures must be numbered step-by-step.) Drawing with Labels:

4 QUANTITATIVE DATA SMALL MARSHMALLOW # f t h r w distance traveled in feet LARGE MARSHMALLOW distance traveled in feet # f t h r w Duble Bar Graph: (Label the x and y axes.)

5 1. COMPARE: Hw did the flight distance f the small marshmallw and the distance f the large marshmallw cmpare? 2. ANALYZE: Cmpare yur results with yur given hypthesis (My catapult/trebuchet will sht any size marshmallw at least eight feet.) D the results supprt yur hypthesis? 3. IDENTIFY LIMITS: What pssible limitatins r errrs did yu r culd yu have experienced during yur trials? Hw might these limitatins affect yur results? After identifying the limitatins r errrs, adjustments shuld be made. Hw wuld these adjustments affect yur results? 4. APPLY: Use Newtn s laws t thrughly explain yur quantitative results and why ne size may have wrked better fr yur machine. Law Definitin Hw did it apply t yur prject? 1 st 2 nd 3 rd

6 5. INFER: Using yur results, what can yu infer frm yur data? (Why did the small/large marshmallw g further? Hw did Newtn s laws, mass, gravity, frictin, air resistance, and cntact frces apply?) 6. CONCLUSION: (Write a cnclusin restating yur hypthesis, test results, and inferences.)

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