1. Permanently Charging the Electroscope By conduction Using a Positively Charged Rod title

2. Start with neutral electroscope Scene 1

39. Scene 2 Negatively Charged Knob Positively charged leaves Like charges repel Electrons from leaves are attracted upward to the knob Click here to repeat animation.

40. Like charges repel

61. Once contact is made, electrons are transferred from the knob of the electroscope to the charged rod. Charging by contact is called conduction. Positively charged leaves Positively charged knob Rod is still positive Scene 3 Click here to repeat animation.

62. Positively charged leaves Positively charged knob

63. Positively charged leaves Positively charged knob

64. Positively charged leaves Positively charged knob

65. Positively charged leaves Positively charged knob

66. Positively charged leaves Positively charged knob

67. Positively charged leaves Positively charged knob

68. Positively charged leaves Positively charged knob

69. Positively charged leaves Positively charged knob

70. Positively charged leaves Positively charged knob

71. Positively charged leaves Positively charged knob

72. Positively charged leaves Positively charged knob

73. Positively charged leaves Positively charged knob

74. Positively charged leaves Positively charged knob

75. Positively charged leaves Positively charged knob

76. Positively charged leaves Positively charged knob

77. Positively charged leaves Positively charged knob Positively Charged Electroscope Scene 4 Click here to repeat animation.

78. Positively charged leaves Positively charged knob Positively Charged Electroscope Recall, was the rod used positively charged or negatively charged? The charged rod used this time was positively charged. What was the final charge on the electroscope? (positive or negative) With a positively charged rod the electroscope becomes positively charged by conduction. Make a note of this!

79. Positively Charged Electroscope Start over See how the electroscope is neutralized

80. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

81. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

82. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

83. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

84. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

85. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

86. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

87. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

88. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

89. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

90. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

91. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

92. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

93. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

94. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

95. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

96. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

97. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

98. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

99. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

100. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

101. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

102. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

103. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

104. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

105. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

106. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

107. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

108. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

109. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

110. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

111. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

112. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

113. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

114. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

115. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

116. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

117. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

118. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

119. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

120. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

121. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

122. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

123. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

124. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

125. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

126. Positively charged leaves Positively charged knob To neutralize, connect a wire from the electroscope to the ground:

127. Scene 5 To neutralize, connect a wire from the electroscope to the ground: electrons from the ground move into electro- scope. Click here to repeat animation.

128. Scene 5 Finally, the ground wire is removed:

129. Scene 5 Finally, the ground wire is removed:

130. Scene 5 Finally, the ground wire is removed:

131. Scene 5 Finally, the ground wire is removed:

132. Scene 5 Finally, the ground wire is removed:

133. Scene 5 Finally, the ground wire is removed:

134. Scene 5 Finally, the ground wire is removed:

135. Scene 5 Finally, the ground wire is removed:

136. Scene 5 Finally, the ground wire is removed:

137. Scene 5 Finally, the ground wire is removed:

138. Scene 5 Finally, the ground wire is removed:

139. Scene 5 Finally, the ground wire is removed:

140. Scene 5 Finally, the ground wire is removed:

141. Scene 5 Finally, the ground wire is removed:

142. Scene 5 Finally, the ground wire is removed:

143. Scene 5 Finally, the ground wire is removed:

144. Scene 6 Finally, the ground wire is removed: Hit enter or click the mouse to start over.