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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养颜泡3716弹簧测力计的结构和使用方法是什么? -
蓬君码18898639074 ______ 弹簧测力计的用法:(1)要检查指针是否指在零刻 8/28 度,如果不是,则要调零;(2)认清最小刻度和测量范围;(3)轻拉秤钩几次,看每次松手后,指针是否回到零刻度,(4)测量时弹簧测力计内弹簧的轴线与所测力的方向一致;⑸观察读数时,视线必须与刻度盘垂直.(6)测量力时不能超过弹簧测力计的量程.

养颜泡3716弹簧测力计的正确使用方法 -
蓬君码18898639074 ______ 测量力的大小的工具叫测力计,在实验室常用的测力计是弹簧测力计.弹簧测力计的原理是:根据弹簧受到的拉力越大,弹簧伸长越长的原理制成.使用时注意事项:①观察量程:就是观察弹簧秤面板上的最大刻度值.注意加在弹簧秤上的力不能超过它的量程.②观察最小刻度值:就是弹簧秤刻度的每一小格表示多少牛.③校正零点:看指针是否指在零位置,如果不是,则应调整到指针指在零刻度线.④拉力沿弹簧的中心轴线方向施加在弹簧秤上.⑤观察指针示数视线要与刻度线垂直.

养颜泡3716在“观察和使用弹簧测力计”的活动中.(1)请你把下面弹簧测力计的使用方法补全,并把正确的顺序填空下面的横线上:______、______、______.①测... -
蓬君码18898639074 ______[答案] (1)按照分析中弹簧测力计的使用要求和顺序进行操作. ②要了解弹簧测力计的量程,所测的力不能超过量程;还要观察测力计的分度值; ③然后,看指针是否指在零刻度线上,如果不在,需要校正零点; ①测量时,拉力方向要和测力计的轴线一致,...

养颜泡3716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 -
蓬君码18898639074 ______ 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.

养颜泡3716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 -
蓬君码18898639074 ______ 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,弹簧不能靠在刻度盘上. 故答案为:(1)量程;(2)分度值;(3)校零.

养颜泡3716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 -
蓬君码18898639074 ______ (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

养颜泡3716试设计一个正确使用弹簧测力计的实验.___ - -
蓬君码18898639074 ______[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...

养颜泡3716如何用弹簧测力计“准确”? -
蓬君码18898639074 ______ 探测测力计使用方法: (1)使用弹簧测力计时,首先要看清其量程,所要测量的力不能超过它的量程.因为弹簧是有一定弹性限度的,超过这个限度测量就不准确,还有可能损坏测力计. (2)测量前要看清楚弹簧测力计的分度值,以便测量时...

养颜泡3716弹簧测力计使用前,先观察它的 - -----和------,并观察指针是否指在------;使用时,拉力方向应该与弹簧轴 -
蓬君码18898639074 ______ 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:量程;分度值;零刻度线上;在一条直线上.