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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伍宙钩2592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... -
屠贝相15294229738 ______[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...

伍宙钩2592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... -
屠贝相15294229738 ______[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...

伍宙钩2592测量力的大小的仪器叫 - -----.(1)弹簧测力计的原理是------.(2)使用方法:①认清------和------.② -
屠贝相15294229738 ______ 测量力的大小的仪器叫弹簧测力计; (1)弹簧测力计的原理是在一定限度内,弹簧的伸长与受到的拉力成正比. (2)使用方法: ①认清量程和分度值. ②观察指针是否指在零刻度线上. ③测量时拉力的方向应与弹簧的轴线方向在一条直线上. 故答案为:弹簧测力计;在一定限度内,弹簧的伸长与受到的拉力成正比;量程;分度值;零刻度线上;在一条直线上.

伍宙钩2592弹力测力计的使用方法 -
屠贝相15294229738 ______ 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.

伍宙钩2592 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... -
屠贝相15294229738 ______[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

伍宙钩2592使用弹簧测力计前,应先检查指针是否在______刻度的位置.若不在此刻度,应进行调整后再使用.测力计上最大刻度值就是弹簧测力计的______. -
屠贝相15294229738 ______[答案] 使用弹簧测力计前,应先检查指针是否在0刻度线的位置,不在的就要调零; 测力计的最大刻度值就表示了弹簧测力计的量程. 故答案为:0;量程.

伍宙钩2592弹簧测力计的正确使用方法是:(1)测量前必须先观察,明确测力计的 - -----和------;(2)实际测量时,要 -
屠贝相15294229738 ______ 弹簧测力计的正确使用方法是 (1)测量前必须先观察,明确测力计的量程和分度值;(2)实际测量时,要使弹簧测力计内弹簧的伸长方向跟拉力的方向在一条直线上;(3)读数时,眼睛观察指针的视线应与弹簧测力计的刻度盘上的刻度线相垂直. 故答案为:(1)量程;分度值;(2)拉力;(3)相垂直.

伍宙钩2592怎样使用弹簧测力计 -
屠贝相15294229738 ______ 使用前: 1.拉动弹簧:反复拉动弹簧(拉重了会损坏弹簧),防止其卡住,摩擦,碰撞.2.了解量程:知道测量力的最大范围(量程)是多少.3.明确分度值:了解弹簧测力计的刻度.知道每一大格,最小一格表示多少牛(N).4.校零:检查...

伍宙钩2592测量力的大小的仪器叫______.实验室常用的测力工具是______.(1)弹簧测力计的原理是______.(2)使用方法:①认清______和______.②观察指针是否... -
屠贝相15294229738 ______[答案] 测量力的大小的仪器叫测力计,实验室常用的测力计是弹簧测力计; (1)弹簧测力计的原理是在一定限度内,弹簧的伸长与受到的拉力成正比. (2)使用方法: ①认清量程和分度值. ②观察指针是否指在零刻度线上. ③测量时拉力的方向应与弹簧的...

伍宙钩2592弹簧测力计使用方法:测力时力要沿着弹簧的()方向,使拉力与测力计外壳() -
屠贝相15294229738 ______[答案] 伸长方向,平行