小實驗大科學，扭緊橡皮筋，驅動螺旋槳，將風力轉換成動能，使車子在無電力、馬達的情況下能快速前進。自行組裝，讓科學也能很有趣。● 簡易組裝，不須任何黏合劑● FSC認證木材製成● 內附組裝說明● 透過科學實驗，了解力學● 可當競速小車比賽輕鬆組裝內附原廠組裝說明書，不需任何黏合劑即可成型FSC®認證FSC認證木材製成，永續保護地球 小實驗大科學扭緊橡皮筋，驅動螺旋槳釋放之後，彈力將轉為動力車子就會起跑啦!你知道嗎?(Bernoulli#39;sprinciple)橡皮筋由小顆粒組成的彈性鏈，這些顆粒緊密地包裹在一起。當橡皮帶被扭曲時，粒子之間的距離會變大，橡皮帶會儲存勢能。如果橡皮筋上的張力降低，顆粒會再次移動得更近。張力為運動能量釋放，並導致螺旋槳上的葉片旋轉。當螺旋轉動的過程是將橡皮帶拉緊，代表將動力從你的力量灌入橡皮帶內，橡皮帶儲存位能(Potentialenergy)。當你放手，緊繃的橡皮帶會慢慢恢復到原狀；橡皮帶放鬆的過程，位能就會漸漸移轉到螺旋槳，使得螺旋槳轉動，帶動賽車奔跑。當作用發生，位能儲藏會轉換為動能(Kineticenergy)，所以橡皮帶轉越緊，越多能量會被生成。旋轉螺旋槳的方向決定往前或往後，反向旋轉螺旋槳，賽車也會反向奔跑。你知道真正的汽車也使用儲存的能源嗎？在電動汽車中，電池可以作為能源儲存，而在有內燃機的汽車中，電池是汽油。當汽車行駛時，儲存的能量會轉化為運動能量，因此，真正的汽車的工作原理與橡皮筋賽車是相同。試試看反向旋轉螺旋槳，賽車會跑向什麼方向?可以測試看看不同質地的路面跑起來的速度，例如磁磚地、沙地上等...為什麼在不同的路面，跑起來的速度會不同呢?這是因為:靜摩擦力(Staticfriction)，當輪子和地面產生靜摩擦力時，輪子越能得到較好的抓地力，賽車性能會更好，跑起來會比較順暢，例如在平坦的地毯上，在非常平滑的表面，例如磁磚地面，它的靜摩擦力通常不夠多。在鬆軟的表面例如沙地上，靜摩擦力則會過多，導致速度下降。商品規格 品牌：德國MOSES適用年齡：3歲以上材質成分：FSC認證木材、橡皮筋、金屬、塑膠包裝尺寸：約27.5x12.5x2.5cm包裝重量：約122g產地：MOSES授權中國廠製造注意：內含細小物件，不適合三歲以下幼兒使用請勿使用橡皮筋朝人體彈射.detal{color:#4D4D4D;font-size:5.5em;text-align:center;padding:50px400px20px400px;}.desc1{color:#FF9933;font-size:2.5em;padding:20px;padding-top:50px;text-align:center;line-height:1.8em;}.desc2{font-size:2em;color:#FFFFFF;background-color:#00B5CA;padding:20px80px50px80px;line-height:1.5em;max-width:900px;margin:0auto;}.desc3{font-size:2em;color:#FFFFFF;background-color:#94C131;padding:20px80px50px80px;line-height:1.5em;max-width:900px;margin:0auto;}.Janod{text-align:left;font-size:2em;width:100%;max-width:900px;padding:10px;color:#61A60E}.Janod2{text-align:left;font-size:2.7em;width:100%;max-width:900px;padding:10px;font-weight:bold;}.Janod2span{font-weight:lighter;font-size:0.8em;}.Janod3{background:#EBA900;text-align:left;font-size:2em;width:100%;max-width:840px;padding:30px;margin:10px30px;color:#FFFFFF;}.Janod11{position:relative;max-width:900px;width:100%;}.Janod12p{text-align:right;position:absolute;top:54px;right:114px;font-size:4.5em;font-weight:bold;line-height:0.8em;color:#666666}.Janod12span{font-weight:lighter;font-size:0.5em;line-height:0.8em;color:#666666;}.Janod21{position:relative;max-width:900px;width:100%;}.Janod22p{text-align:left;position:absolute;top:56px;left:237px;font-size:4.5em;font-weight:bold;line-height:0.8em;color:#666666;}.Janod22span{font-weight:lighter;font-size:0.5em;color:#666666;}.Janod22.J22{font-weight:lighter;font-size:1em;color:#0C6BB0;}.Janod31{position:relative;max-width:900px;width:100%;}.Janod32p{text-align:left;position:absolute;top:148px;right:68px;font-size:4.5em;font-weight:bold;line-height:0.8em;color:#666666;}.Janod32span{font-weight:lighter;font-size:0.5em;line-height:0.8em;color:#666666;}.Janod31{position:relative;max-width:900px;width:100%;}.Janod32-1p{text-align:left;position:absolute;top:144px;right:54px;font-size:3em;font-weight:bold;color:#008A54;}.Janod32-1span{font-weight:lighter;font-size:0.7em;color:#666767;}.Janod41{position:relative;max-width:900px;width:100%;}.Janod42p{text-align:left;position:absolute;top:225px;left:96px;font-size:4.5em;font-weight:bold;line-height:0.8em;color:#666666;}.Janod42span{font-weight:lighter;font-size:0.5em;line-height:0.8em;color:#666666;}.Janod51{position:relative;max-width:900px;width:100%;}.Janod52p{text-align:left;position:absolute;top:95px;right:58px;font-size:4.5em;font-weight:bold;line-height:0.8em;color:#666666;}.Janod52span{font-weight:lighter;font-size:0.5em;line-height:0.8em;color:#666666;}.Janod61{position:relative;max-width:900px;width:100%;}.Janod62p{text-align:left;position:absolute;top:128px;left:83px;font-size:3em;font-weight:bold;color:#008A54;}.Janod62span{font-weight:lighter;font-size:0.7em;color:#666767;}.Janod71{position:relative;max-width:900px;width:100%;}.Janod72p{text-align:left;position:absolute;top:73px;right:154px;font-size:3em;font-weight:bold;color:#008A54;}.Janod72span{font-weight:lighter;font-size:0.7em;color:#666767;}.Janod81{position:relative;max-width:900px;width:100%;}.Janod82p{text-align:left;position:absolute;top:288px;left:118px;font-size:3em;font-weight:bold;color:#D35C44;}.Janod82span{font-weight:lighter;font-size:0.7em;color:#666767;}.Janod91{position:relative;max-width:900px;width:100%;}.Janod92p{text-align:left;position:absolute;top:158px;right:78px;font-size:3em;font-weight:bold;color:#D35C44;}.Janod92span{font-weight:lighter;font-size:0.7em;color:#595757;}.Janod101{position:relative;max-width:900px;width:100%;}.Janod102p{text-align:left;position:absolute;top:44px;right:460px;font-size:3em;font-weight:bold;color:#D35C44;}.Janod102span{font-weight:lighter;font-size:0.7em;color:#595757;}.All_Specification{width:100%;max-width:900px;}.All_Specification.title-cp{line-height:2em;font-size:4em;color:#545454;position:relative;font-weight:bold;}.hori-line{width:70%;border-top:solidthin#545454;position:absolute;top:50%;right:0%;}.All_Specificationp{font-size:2em;line-height:1.2em;color:#717071;}.Notice{color:#ff1414;font-weight:bold;}.product_mark{color:#ffffff;background-color:#0098a6;width:100%;max-width:900px;}.product_markp{font-size:2.2em;padding:1.2em;line-height:1.6em;}@mediascreenand(max-width:480px){.desc1{color:#FF9933;font-size:1.2em;padding:4px;text-align:center;line-height:1.8em;}.desc2{font-size:1.1em;padding:30px40px30px40px;line-height:1.3em;margin-top:-18px;}.desc3{font-size:1.1em;padding:30px40px2px40px;line-height:1.3em;margin-top:-18px;}.Janod{font-size:1.1em;}.Janod2{font-size:1.5em;}.Janod2span{font-weight:lighter;font-size:0.8em;}.Janod3{margin:0px;font-size:1em;padding:11px}.Janod11{position:relative;}.Janod12p{position:absolute;top:23px;right:38px;font-size:1.5em;font-weight:bold;line-height:1em;}.Janod12span{font-weight:lighter;font-size:0.7em;}.Janod21{position:relative;}.Janod22p{position:absolute;top:19px;left:84px;font-size:1.5em;font-weight:bold;line-height:1em;}.Janod22span{font-weight:lighter;font-size:0.7em;}.Janod31{position:rel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簡易組裝，不須任何黏合劑● FSC認證木材製成● 內附組裝說明● 透過科學實驗，了解力學● 可當競速小車比賽
