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The activity focuses on understanding motion transfer through meshed gears and investigating how gear size affects rotational speed and applied force. Students label key parts, explain how input motion drives the fan blades, vary crank speed, and record observations. The worksheet also prompts predictions about different gear size combinations and requires diagramming gear alignment and movement directions.",{"@graph":63,"@context":118},[64,80,101],{"@type":65,"itemListElement":66},"BreadcrumbList",[67,71,74,77],{"item":68,"name":69,"@type":70,"position":9},"https://docshare.wps.com","Home","ListItem",{"item":72,"name":10,"@type":70,"position":73},"https://docshare.wps.com/template/",2,{"item":75,"name":46,"@type":70,"position":76},"https://docshare.wps.com/template/paper-templates/",3,{"item":78,"name":59,"@type":70,"position":79},"https://docshare.wps.com/template/79318-crank-fan-gear-experiment-using-a-spur-gear-system-in-a-crank-fan-experiment-1/204690/",4,{"url":78,"name":59,"@type":81,"image":82,"author":87,"headline":59,"publisher":90,"fileFormat":93,"inLanguage":57,"description":61,"dateModified":94,"datePublished":95,"encodingFormat":93,"isAccessibleForFree":96,"interactionStatistic":97},"DigitalDocument",{"url":83,"@type":84,"width":85,"height":86},"https://docshare.wps.com/thumbnails/79318-crank-fan-gear-experiment-using-a-spur-gear-system-in-a-crank-fan-experiment-1/204690.png","ImageObject",442,249,{"name":88,"@type":89},"Dozel","Person",{"url":68,"name":91,"@type":92},"DocShare","Organization","application/pdf","2026-10-10","2026-09-05",true,{"@type":98,"interactionType":99,"userInteractionCount":47},"InteractionCounter",{"@type":100},"ViewAction",{"@type":102,"mainEntity":103},"FAQPage",[104,110,114],{"name":105,"@type":106,"acceptedAnswer":107},"What is the main goal of Experiment #1 with the crank fan?","Question",{"text":108,"@type":109},"To understand how motion transfers through a spur gear system and to explore how gear size relates to rotation speed and force.","Answer",{"name":111,"@type":106,"acceptedAnswer":112},"Which parts should students label on the crank fan model?",{"text":113,"@type":109},"Crank, driver gear, driven gear, and fan blades.",{"name":115,"@type":106,"acceptedAnswer":116},"How do students investigate speed changes in the fan blades?",{"text":117,"@type":109},"By varying the speed of the crank and changing the gear ratio, then comparing the resulting blade rotation behavior.","https://schema.org",{"og:url":78,"og:type":120,"og:title":59,"og:site_name":91,"og:description":61},"article",{"robots":122,"canonical":78},"index,follow",{"doc_id":124,"site_id":56},204690,1790292735,{"code":4,"msg":5,"data":127},{"doc_id":124,"user_id":128,"nickname":88,"user_avatar":129,"doc_module":9,"category_id":45,"category_name":46,"doc_title":59,"doc_description":61,"doc_content":130,"file_id":131,"file_url":132,"file_type":133,"file_size":134,"view_count":47,"is_deleted":4,"is_public":9,"is_downloadable":9,"audit_status":9,"page_count":30,"language":135,"language_code":57,"site_id":56,"html_lang":57,"table_of_contents":136,"faqs":137,"seo_title":138,"seo_description":61,"update_tm":139,"read_time":140},962085662650,"https://ap-avatar.wpscdn.com/davatar_29158cc5080c5b710cf443261637dec0","Education®  \nGEARS  \nBUILDING SET  \nENGRENAGES  \nJEU DE CONSTRUCTION  \nexplorations*  \nExperiments  \nExpériences‡  \n8+ 79318  \n(EN) WARNING: CHOKING HAZARD – Small parts. Not for children under 3 years.  \n(FR) ATTENTION : RISQUE D’ÉTOUFFEMENT – Pièces de petite taille. Ne convient pas aux enfants de moins de 3 ans.  \n( ES) ADVERTENCIA: PELIGRO DE ASFIXIA – Piezas pequeñas. No para niños menores de 3 años.  \n(DE) ACHTUNG: ERSTICKUNGSGEFAHR – Kleinteile. Nicht geeignet für Kinder unter 3 Jahren.  \n(IT) AVVISO: PERICOLO DI SOFFOCARE – Pezzi piccoli. Non adatto per bambini sotto 3 anni.  \n(PT) AVISO: PERIGO DE SUFOCAÇÃO – Peças pequenas. Não se destina a crianças com menos de 3 anos de idade.(NL) WAARSCHUWING: VERSTIKKINGSGEVAAR – Kleine onderdelen. Niet geschikt voor kinderen onder 3.  \n(EN) CAUTION: Keep hands, face, hair and clothing away from all moving parts.  \n(FR) ATTENTION : Garde les cheveux, les doigts, le visage et les vêtements à l’écart de toutes les pièces mobiles.  \n( ES) PRECAUCIÓN: Mantén el cabello, los dedos, la cara y la ropa alejada de las piezas móviles.  \n(DE) VORSICHT: Haare, Finger, Gesicht und Kleidungsstücke nicht mit beweglichen Teilen in Berührung kommen lassen.  \n(IT) ATTENZIONE: Tenere i capelli, le dita, il viso e i vestiti lontano da tutte le parti in movimento.  \n(PT) CUIDADO: Mantém o cabelo, os dedos, a cara e a roupa afastados de todas as peças móveis.  \n(NL) OPGEPAST: Hou het haar, de vingers, het gezicht en kledij verwijderd van alle bewegende onderdelen.  \nCrank Fan Ventilateur  \nLüfter Zwengel ventilator 1 1 2  \n2  \n5 4  \n2  \n1  \n1  \n(EN) Make sure the 2 gears mesh.(FR) Surveille l’engrènement.  \n(DE) Sicherstellen, dass die 2 Zahnräder verzahnen.  \n(NL) Zorg ervoor dat de 2 tandwielen aangrijpen.  \n1 3 11 2  \n12 4 2 4  \n2  \n 4   Education®   \n8 4 1 1 8 8  \n4  \n1-4  \n 6   Education®   \n2  \n(EN) Change the speed of the fan’s spinning blades by changing the gear ratio. Try Steps 5 and 6.  \n(FR) Quand vous changez la grandeur des parties vous changez la vitesse des lames de fan. Suivez des instructions 5 et 6.  \n(DE) Ändern Sie die Geschwindigkeit der Rotorblätterdes Lüfters indem Sie die Getriebeübersetzung ändern. Versuchen Sie die Schritte 5 und 6.  \n(NL) Verander de snelheid van demessen door het veranderen van u stap 5 en 6.  \nventilator de draaiendede versnelling. Probeert  \n(EN) English  \nExperiment \\#1  \nUsing a Spur Gear System in a Crank Fan  \nObjectives: Understand and describe the transfer of motion through a spur gear system and investigate the relationship between gear size, speed of rotation and force.  \nMaterials You Will Need:  \nbuilt CRANK FAN model  \n masking tape  \n paper or notebook  \nPROCESS:  \n1. Build the CRANK FAN model by following the step-bystep building instructions.  \n2. Explore your model. Locate and identify the gears. Watch the gear mechanism in operation as you turn the crank.  \n 8   Education®   \n3. Using your notebook, explain how the gear system turns the fan blades. How do the fan’s gears fit together? Are they in line with each other?  \n4. This arrangement is called a Spur Gear System. In this arrangement, the gears fit together, or mesh, along the same line or in the same plane. In the Crank Fan, the gears are arranged one above the other. Turn your model on its side so you can see how the gears are in line with each other.  \n5. The names of the various parts of this model are:  \nCrank, driver gear, driven gear, and fan blades. Using masking tape, label the different parts of your model.  \n6. Using your notebook, respond to the following:  \nfan blades  \ncrank driven gear  \ndriver gear  \n(a) Describe how the moving parts that you labeled above are connected to each other.  \n For printer friendly versions of the experiments, [goto:](goto: www.knex.com/instructions and)[ www.knex.com/instructions](goto: www.knex.com/instructions and)[ and](goto: www.knex.com/instructions and) enter the code 79318.   \n(b) Describe the input motion (the motion you use when yo","cbCaijqLYJArUX2A","https://ap.wps.com/l/cbCaijqLYJArUX2A","pdf",7310428,"English","# Experiment #1\n## Objectives\n## Materials You Will Need\n## Process\n## Printer-Friendly Versions","[{\"question\":\"What is the main goal of Experiment #1 with the crank fan?\",\"answer\":\"To understand how motion transfers through a spur gear system and to explore how gear size relates to rotation speed and force.\"},{\"question\":\"Which parts should students label on the crank fan model?\",\"answer\":\"Crank, driver gear, driven gear, and fan blades.\"},{\"question\":\"How do students investigate speed changes in the fan blades?\",\"answer\":\"By varying the speed of the crank and changing the gear ratio, then comparing the resulting blade rotation behavior.\"}]","79318 - Crank Fan Gear Experiment — Using a Spur Gear System in a Crank Fan - Experiment 1 | PDF",1788574745,6]