图示生活中的杠杆
—2014.9.5
生活中的省力杠杆：撬棍，扳手，钳子，拔钉器，开瓶器，剪铁皮的剪刀，剪树枝剪刀
生活中的费力杠杆：筷子，胳膊，镊子，鱼竿，火钳，缝纫机的踏板，笤帚，划桨晾衣杆,理发剪刀
图示分析：
![](https://wkrtcs.bdimg.com/rtcs/image?w=423.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_7","w":"423.00","h":"301.00","dataType":"png","c":"word/media/image1.png","imgOriW":679,"imgOriH":483})
![](https://wkrtcs.bdimg.com/rtcs/image?w=423.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_2","w":"423.00","h":"302.00","dataType":"png","c":"word/media/image3.png","imgOriW":665,"imgOriH":475})
![](https://wkrtcs.bdimg.com/rtcs/image?w=420.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_2","w":"420.00","h":"294.00","dataType":"png","c":"word/media/image6.png","imgOriW":650,"imgOriH":455})
![](https://wkrtcs.bdimg.com/rtcs/image?w=417.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_2","w":"417.00","h":"300.00","dataType":"png","c":"word/media/image7.png","imgOriW":650,"imgOriH":468})
筷子：费力杠杆
![](https://wkrtcs.bdimg.com/rtcs/image?w=328.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_2","w":"328.00","h":"221.00","dataType":"jpeg","c":"word/media/image8.jpeg","imgOriW":396,"imgOriH":267})
扫帚：费力杠杆
![](https://wkrtcs.bdimg.com/rtcs/image?w=310.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_4","w":"310.00","h":"315.00","dataType":"png","c":"word/media/image9.png","imgOriW":370,"imgOriH":376})
![](https://wkrtcs.bdimg.com/rtcs/image?w=552.00&md5sum=b2a9abdcee074e207726d24e95eed745&sign=fc7da9c2d9&rtcs_flag=1&rtcs_ver=4&l=webapp&bucketNum=282&ipr={"t":"img","r":"r_2","w":"552.00","h":"397.00","dataType":"png","c":"word/media/image11.png","imgOriW":706,"imgOriH":507})
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