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

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栾邵袁3315弹力测力计的使用方法如题 -
赫力眉13527628806 ______[答案] 一、被测物体重力不能超过弹簧测力计的量程; 二、读数时,视线应垂至于刻度; 三、在测量前,迎先调零; 四、不用刻度已被损坏的弹簧测力计; 五、待示数稳定后才读数. 我记得好像应该只有这么多.如果是测摩擦力,要匀速拉动弹簧测力计.

栾邵袁3315弹簧测力计的正确使用方法是:(1)测量前要了解弹簧测力计的______,要明确______,还必须要______.(2)在实际测量时,要使弹簧测力计内的弹簧... -
赫力眉13527628806 ______[答案] 要明确弹簧测力计的使用方法. 答案为:(1)量程和分度值,分度值,校零.(2)所测力的.(3)相平.(4)数字,单位.

栾邵袁3315弹簧测力计的使用方法有下面两点:1、了解弹簧测力计的量程,使用时不能测量超过量程的力;2、用弹簧测力计测力时,要使弹簧测力计的受力方向沿弹簧... -
赫力眉13527628806 ______[答案] 任何测量工具在使用时,都不允许测量值超过其量程,因为会损坏测量工具, 因为弹簧测力计的原理是:弹簧受的拉力与其伸长成正比,拉力自然必须是沿弹簧的轴线方向了, 读数时,视线要与刻度盘垂直,这样读数就不会有偏差.

栾邵袁3315弹簧测力计的正确使用方法是:(1)测量前了解弹簧测力计的______,认清每个大、小格表示多少______,检查弹簧测力计的指针是否在______.(2)在... -
赫力眉13527628806 ______[答案] 弹簧测力计的正确使用方法是: (1)测量前了解弹簧测力计的量程,认清每个大、小格表示多少N,检查弹簧测力计的指针是否在0刻度线. (2)在测量物体重力时,要使弹簧测力计内的弹簧轴线方向跟重力方向一致,读数时,眼睛观察指针的视...

栾邵袁3315弹簧测力计的使用说明书? -
赫力眉13527628806 ______[答案] 使用说明:(1)测量前指针对准零刻线,若有偏差,必须校正,这一步骤叫校零(2)要明确弹簧测力计的量程和分度值.侧量时,被测力的大小应在量程之IN (3)测量力时,要使弹簧测力计内的弹簧伸长方向跟所测力的方向在一条直线全 胡克定律:...

栾邵袁3315弹簧测力计的正确使用方法:(1)了解弹簧测力计的______,不要测量超过它量程的力;(2)明确______:了弹簧测力计的正确使用方法:(1)了解弹... -
赫力眉13527628806 ______[答案] 弹簧测力计的正确使用方法: ①首先要看清它的量程,加在弹簧测力计上的力不许超过它的量程; ②明确分度值,即一小格表示的力的大小; ③校零:测力前要使指针对准零刻度线; ④测力时,要使测力计的弹簧轴线方向跟力的方向在同一直线上...

栾邵袁3315弹簧测力计如何使用
赫力眉13527628806 ______ 1先在竖直方向拉动几次防止与外壳摩擦 2调零 3拉力方向与弹簧轴线一致 4读数实现与刻度垂直

栾邵袁3315试设计一个正确使用弹簧测力计的实验.___ - -
赫力眉13527628806 ______[答案] 【分析】对于使用弹簧测力计应该很熟悉了,联系自己实验时的做法,简要写出测量过程.1、器材:圆筒弹簧测力计、弹簧外露弹簧测力计、壳式弹簧测力计各一个,木板,长木板. 步骤: (1)观察弹簧测力计的量程,认清它的每一个小格表示...

栾邵袁3315 弹簧测力计的正确使用方法是:(1)测量前要了解弹簧测力计的____________,要明确____________,还必须要________ - .(2)在实... -
赫力眉13527628806 ______[答案] (1)测量范围(或量程),分度值,校零 (2)所测力的 (3)相平 (4)数字,单位

栾邵袁3315弹簧测力计的正确使用方法是:(1)测量前要了解弹簧测力计的 - -----------,要明确------------,还必须 -
赫力眉13527628806 ______ (1)测量范围(或量程),分度值,校零 (2)所测力的 (3)相平 (4)数字,单位