(function(){var loadHandler=window['sl_{904D71D3-BFB3-4B5F-80DB-6DEF9A7D32A9}'];loadHandler&&loadHandler(5, '<div id="spr0_e19dc0"><div id="spr1_e19dc0" class="kern slide"><img id="img0_e19dc0" src="data/img3.png" width="720px" height="405px" alt="" style="left:0px;top:0px;"/></div><div id="spr2_e19dc0" class="kern slide"><div id="spr3_e19dc0" style="left:36px;top:375.375px;"><div style="width:0px;"><span id="txt0_e19dc0" class="nokern" data-width="45.043945" style="left:5.401px;top:5.838px;">28/01/2026</span></div></div><div id="spr4_e19dc0" style="left:516px;top:375.375px;"><div style="width:0px;"><span id="txt1_e19dc0" class="nokern" style="left:158.051px;top:4.243px;">6</span></div></div><div id="spr5_e19dc0" style="left:21.541px;top:14.744px;"><div style="width:0px;"><span id="txt2_e19dc0" style="left:5.401px;top:3.766px;"> </span></div><div style="width:0px;"><span id="txt3_e19dc0" data-width="25.000000" style="left:10.401px;top:3.766px;">     </span></div><div style="width:0px;"><span id="txt4_e19dc0" data-width="598.974609" style="left:35.041px;top:3.766px;">Theo các em, âm thanh phát ra truyền qua không khí đến tai ta như thế nào</span></div><div style="width:0px;"><span id="txt5_e19dc0" style="left:633.416px;top:3.766px;"> </span></div><div style="width:0px;"><span id="txt6_e19dc0" style="left:638.416px;top:3.766px;">?</span></div></div><div id="spr6_e19dc0" style="left:21.541px;top:65.34px;"><div style="width:0px;"><span id="txt7_e19dc0" data-width="41.666801" style="left:5.401px;top:5.866px;">Trả </span> <span id="txt8_e19dc0" data-width="28.512503" style="left:39.661px;top:5.866px;">lời</span></div><div style="width:0px;"><span id="txt9_e19dc0" style="left:61.411px;top:5.866px;">:</span></div><div style="width:0px;"><span id="txt10_e19dc0" data-width="16.666800" style="left:5.401px;top:38.916px;">		</span></div><div style="width:0px;"><span id="txt11_e19dc0" data-width="51.666801" style="left:59.401px;top:38.916px;">Sóng </span> <span id="txt12_e19dc0" data-width="36.110161" style="left:106.396px;top:38.916px;">âm </span> <span id="txt13_e19dc0" data-width="55.006645" style="left:137.891px;top:38.916px;">trong </span> <span id="txt14_e19dc0" data-width="60.543755" style="left:187.401px;top:38.916px;">không </span> <span id="txt15_e19dc0" data-width="36.100395" style="left:243.276px;top:38.916px;">khí </span> <span id="txt16_e19dc0" data-width="52.125786" style="left:274.651px;top:38.916px;">được </span> <span id="txt17_e19dc0" data-width="37.223442" style="left:322.026px;top:38.916px;">lan </span> <span id="txt18_e19dc0" data-width="62.760551" style="left:354.526px;top:38.916px;">truyền </span> <span id="txt19_e19dc0" data-width="37.897270" style="left:412.526px;top:38.916px;">bởi </span> <span id="txt20_e19dc0" data-width="30.358206" style="left:445.651px;top:38.916px;">sự </span> <span id="txt21_e19dc0" data-width="41.666801" style="left:471.276px;top:38.916px;">dao </span> <span id="txt22_e19dc0" data-width="51.666801" style="left:508.276px;top:38.916px;">động </span> <span id="txt23_e19dc0" data-width="53.326958" style="left:555.276px;top:38.916px;">(dãn, </span> <span id="txt24_e19dc0" data-width="43.024223" style="left:603.901px;top:38.916px;">nén)</span></div><div style="width:0px;"><span id="txt25_e19dc0" data-width="40.543755" style="left:22.301px;top:67.466px;">của </span> <span id="txt26_e19dc0" data-width="34.420708" style="left:56.176px;top:67.466px;">các</span></div><div style="width:0px;"><span id="txt27_e19dc0" style="left:83.926px;top:67.466px;"> </span></div><div style="width:0px;"><span id="txt28_e19dc0" data-width="37.897270" style="left:88.926px;top:67.466px;">lớp </span> <span id="txt29_e19dc0" data-width="60.543755" style="left:120.051px;top:67.466px;">không </span> <span id="txt30_e19dc0" data-width="36.100395" style="left:173.926px;top:67.466px;">khí.</span></div></div><div id="svg0_e19dc0" style="left:21.541px;top:14.744px;"><svg width="25" height="35" viewBox="0 0 25 35"><path fill="#ffff00" d="M0,0 h24.686 v34.534 h-24.686 Z"/></svg></div><div id="spr7_e19dc0" style="left:21.541px;top:14.744px;"><div style="width:0px;"><span id="txt31_e19dc0" style="left:5.401px;top:3.979px;">?</span></div></div></div></div>', '{"s":[]}');})();