<h5>フックの法則シミュレーター1(pHet)</h5>
<div class="slide-re"><iframe src="https://phet.colorado.edu/sims/html/masses-and-springs-basics/latest/masses-and-springs-basics_ja.html" width="800" height="600" allowfullscreen="allowfullscreen"></iframe></div>
<h5>フックの法則シミュレーター2(pHet)</h5>
<div class="slide-re"><iframe src="https://phet.colorado.edu/sims/html/hookes-law/latest/hookes-law_ja.html" width="800" height="600" allowfullscreen="allowfullscreen"></iframe></div>