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5-6-2 分析(二)

5-7 研究結果

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2019年第一期
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<span style="font-size:18px;">**<span style="font-family:標楷體;">問題七：吸管放入水中的高度對吹出鳥聲有影響嗎？</span>**</span>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">（一）研究方法</span></span></span>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">1. </span></span><span style="color:black;"><span style="font-family:標楷體;">控制變因：在相同角度下(60°)</span>，相同長度(6</span>公分)，相同粗細的中吸管，利用直徑4公分的乒乓球來實驗。</span>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2. </span></span><span style="color:black;"><span style="font-family:標楷體;">將吸管插入乒乓球，優點是方便、好拿、可裝水。</span></span></span>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">3. </span></span><span style="color:black;"><span style="font-family:標楷體;">將水中高度分為，水下1 公分、水下2 </span>公分、水下 3 </span>公分，並觀察其頻率。</span>

<span style="font-size:18px;"></span>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">（二）研究結果</span></span></span>

<table border="1" cellpadding="0" cellspacing="0"> <tbody> <tr> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">方式</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">水下1公分</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">水下2公分</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">水下3公分</span></span></span>

</td> </tr> <tr> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">蒐集資料</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">頻率</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">頻率</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">頻率</span></span></span>

</td> </tr> <tr> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">第一次</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2251</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2623</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2966</span></span></span>

</td> </tr> <tr> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">第二次</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2271</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2672</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">3015</span></span></span>

</td> </tr> <tr> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">第三次</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2263</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2689</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">3008</span></span></span>

</td> </tr> <tr> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">平均</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2261.3</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2661.3</span></span></span>

</td> <td style="width:139px;"><span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">2996.3</span></span></span>

</td> </tr> </tbody> </table>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">（三）分析：</span></span></span>

<span style="font-size:18px;"><span style="color:black;"><span style="font-family:標楷體;">放入水中越深，則頻率越高，其空氣柱越來越短，所以頻率就越來越高。</span></span></span>

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