什么？用纸也能烧水？

温度计居然也能自己做？

初中物理力学原理动图！

弹簧测力计的使用方法

力的作用是相互的

力使物体发生形变

重力方向总是竖直向下

测量不规则物体的重心的方法

影响滑动摩擦力大小的因素

探究阻力对物体运动的影响

探究二力平衡的条件

惯性

伽利略理想斜面实验

压强

压力的作用效果

探究影响液体压强的因素

连通器原理

托里拆利实验

活塞式抽水机的原理

探究流体压强

阿基米德原理

浮力的原理

探究浮力的大小跟哪些因素有关

探究浮力的大小和排开液体所受重力的关系

测量浮力大小

测量铝块浸没水中所受的浮力

盐水浮鸡蛋

密度计的使用

潜水艇原理

机械效率

","gnid":"9f632bb9679038896","img_data":[{"flag":2,"img":[{"desc":"","height":"295","s_url":"https://p0.ssl.img.360kuai.com/t0171621a8b476e559c_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t0171621a8b476e559c.gif","width":"353"},{"desc":"","height":"250","s_url":"https://p0.ssl.img.360kuai.com/t015e6b0f578af193ba_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t015e6b0f578af193ba.gif","width":"444"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t017e96547a8c7eb4e3_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t017e96547a8c7eb4e3.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01893ecdcf241f3b16_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01893ecdcf241f3b16.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01bbf74285363c4f31_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01bbf74285363c4f31.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01d7c44f25c97ae059_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01d7c44f25c97ae059.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01cd6d92b8a1571f46_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01cd6d92b8a1571f46.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t0170ed179869eb7b8a_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t0170ed179869eb7b8a.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t010c731f4070215433_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t010c731f4070215433.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01907e217a7ae52db2_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01907e217a7ae52db2.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01c68a45e0142ad198_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01c68a45e0142ad198.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01cd249015e9155757_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01cd249015e9155757.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01a187a15a8447aec7_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01a187a15a8447aec7.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t0150d6b731f742e409_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t0150d6b731f742e409.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01f85b5751feac518e_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01f85b5751feac518e.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t012f974b9064abdd8d_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t012f974b9064abdd8d.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01990a85d101222aee_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01990a85d101222aee.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t0143881d2e5f9b93c0_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t0143881d2e5f9b93c0.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t012437088a08517255_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t012437088a08517255.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t015a9d642053d915fc_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t015a9d642053d915fc.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t0104dd31b9e93ef61e_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t0104dd31b9e93ef61e.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01f255973e6b3c4e3d_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01f255973e6b3c4e3d.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t012728f221081f4e67_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t012728f221081f4e67.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t017091d952390aba4b_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t017091d952390aba4b.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t01ad950007e7554ea2_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t01ad950007e7554ea2.gif","width":"560"},{"desc":"","height":"315","s_url":"https://p0.ssl.img.360kuai.com/t0148fb4f6d047b2879_1.gif","title":"","url":"https://p0.ssl.img.360kuai.com/t0148fb4f6d047b2879.gif","width":"560"}]}],"original":0,"pat":"art_src_3,fts0,sts0","powerby":"pika","pub_time":1698188400000,"pure":"","rawurl":"http://zm.news.so.com/735f61adcafce7b973674ae452f67b2b","redirect":0,"rptid":"cc06da95b3173d56","rss_ext":[],"s":"t","src":"木子刻守","tag":[{"clk":"ktechnology_1:阿基米德","k":"阿基米德","u":""},{"clk":"ktechnology_1:伽利略","k":"伽利略","u":""},{"clk":"ktechnology_1:初中","k":"初中","u":""}],"title":"【物理动图】初中物理又难又枯燥？试试这样动图，秒懂物理原理！

轩沫薇3704弹簧测力计的原理 -
咸郎疮14739257265 ______ 在弹性限度内,弹簧的弹力和弹簧的形变量(伸长或压缩值)成正比.写作:F=k·x 其中:“F”,表示弹簧的弹力,弹力是弹簧发生形变时对施力物的作用力.“x”,是弹簧伸长或缩短的长度,注意“x”是以弹簧无形变时的长度为基准,即...

轩沫薇3704弹簧测力计的原理是什么 -
咸郎疮14739257265 ______ 实验器材: 弹簧、铁架台、小木板、白纸条、数个重均为1N的钩码. (1)装置: 用试管夹把小木板夹固定在铁架台上,在木板上贴上白纸条,弹簧没钩的一端固定在木板的小钉子上. (2)如何标定它的零值,各刻度线的数值和量程: 1、当弹簧...

轩沫薇3704弹簧测力计是根据弹簧的伸长与受到的拉力成______的原理制成的,图中弹簧测力计的示数为______N. -
咸郎疮14739257265 ______[答案] (1)在一定弹性限度范围内,弹簧的伸长与受到的拉力成正比,弹簧测力计就是根据这个原理制成的. (2)由图可知,弹簧测力计的分度值是0.2N,弹簧测力计示数为:2.6N. 故答案为:正比;2.6.

轩沫薇3704如图所示是正在使用的弹簧测力计,这个弹簧测力计的工作原理是___,所测拉力F的大小是___. -
咸郎疮14739257265 ______[答案] (1)弹簧测力计是根据在弹簧弹性限度内,弹簧受到的拉力越大,弹簧的伸长量就越大的原理制成的. (2)由图知,测力计的量程为0~5N,分度值为0.2N,示数为3.2N,则拉力为3.2N. 故答案为:在弹簧弹性限度内,弹簧受到的拉力越大,弹簧的伸...

轩沫薇3704弹力测力计的原理与定义. -
咸郎疮14739257265 ______ 原理:首先任何测量都是将某一个物理量与标准(即单位)比较的过程,力的测量就是将力的作用效果与已知力的作用效果比较的过程.如果一个力的作用效果与1牛力的作用效果相同,这个力的大小就是1牛.其次弹簧的伸长与所受力的大小成正比,在确定1牛力的作用效果以后,容易确定更大的力和更小的力的作用效果.另外,弹簧的稳定性较好,可以重复使用.故可以运用弹簧测力计测量力的大小. 在弹性限度内,弹簧的伸长量与所受的拉力成正比,为F=KX. 弹簧测力计 及实验图(5张)F为弹力的大小也就是拉力, k为弹簧的劲度系数,单位是牛顿每米,单位的符号是N/m,x为弹簧伸长或缩短的长度.

轩沫薇3704弹簧测力计是根据弹簧受到的拉力越大,弹簧的______(伸长/长度)就越长的原理制成的.如图,弹簧测力计的示数是______N. -
咸郎疮14739257265 ______[答案] (1)在弹性限度内,弹簧伸长的长度跟所受的拉力成正比; (2)图中弹簧测力计的最大刻度是5N,则量程为0~5N,分度值为0.2N,弹簧测力计的示数为3.6N. 故答案为:伸长;3.6.

轩沫薇3704弹簧测力计是测量力大小的仪器,测力计的工作原理是,弹簧发生弹性形变,外力越大,形变就______,如图所示,测力计的示数是______N. -
咸郎疮14739257265 ______[答案] (1)根据弹簧测力计的原理,弹簧发生弹性形变,外力越大,形变就越大; (2)图中测力计,一个大格是1N,里面有5个小格,即分度值是0.1N,所以示数是2N. 故答案为:越大、2.

轩沫薇3704弹簧测力计的工作原理:______. -
咸郎疮14739257265 ______[答案] 弹簧测力计的原理:在弹性限度内,弹簧受到的拉力越大,弹簧的伸长就越长. 故答案为:在弹性限度内,弹簧受到的拉力越大,弹簧的伸长就越长.

轩沫薇3704弹簧测力计的工作原理是:在______限度内,弹簧的伸长与所受的拉力成______.如图,该弹簧测力计的测量范围是0至______N,这时挂在它上面的物体的... -
咸郎疮14739257265 ______[答案] (1)弹簧测力计的原理是:弹簧在弹性限度内,弹簧受到的拉力越大,弹簧的伸长就越长; (2)弹簧的伸长与所受拉力成正比; (3)弹簧测力计的最大刻度是5N,则量程为0~5N,分度值为0.2N,物体受到的重力是2.6N. 故答案为:弹性;正比;5;...

轩沫薇3704弹簧测力计原理和增大、减小摩擦力的方法? -
咸郎疮14739257265 ______ 弹簧测力计的原理:胡克定律(F=kx)即弹簧的拉力与伸长量成正比(弹性范围内).所以可以在对应的伸长量的位置标上对应的力度.摩檫力有静摩擦力、滑动摩檫力、滚动摩擦力.增大、减小摩檫力的方法:1、如果是静摩擦力,大小则需要用二力平衡求大小,则静摩擦力的平衡力增大,则静摩擦力增大,反之减小.2、滑动摩檫力:由f=uFN(动摩擦因数乘于正压力),增加两物体接触面的粗糙程度可以增大摩檫力,增加正压力,可以增大摩檫力,反之则减小.3、可以用滚动摩擦代替滑动摩擦,从而减小摩檫力.