高考物理复习第7章静电场第1节电场力的性质资料市赛课公开课一等奖省名师优质课获奖课件.pptx

第,1,节电场力性质,1/73,整数倍,2/73,保持不变,摩擦,感应,接触,得失电子,相同,中和,平分,3/73,4/73,真空,点电荷,正比,反比,5/73,真空,点电荷,排斥,吸引,6/73,力作用,7/73,V/m,正电荷,8/73,正电荷,无限远,负电荷,无限远,9/73,越大,场强,降低,垂直,10/73,11/73,12/73,13/73,14/73,15/73,16/73,17/73,18/73,19/73,20/73,21/73,22/73,23/73,24/73,25/73,26/73,27/73,28/73,29/73,30/73,31/73,32/73,33/73,34/73,35/73,36/73,37/73,38/73,39/73,40/73,41/73,42/73,43/73,44/73,45/73,46/73,47/73,48/73,49/73,50/73,51/73,52/73,53/73,54/73,55/73,56/73,57/73,58/73,59/73,比较,等量异种点电荷,等量同种点电荷,连线上电场强度,沿连线先变小后变大，中点,O,处电场强度最小,中垂线上电场强度,O点最大，向外逐步减小,O,点为零，向外先变大后变小,60/73,61/73,62/73,63/73,64/73,65/73,66/73,67/73,68/73,69/73,70/73,71/73,72/73,73/73,