Static Electricity 静电

1. Charges can Build Up if objects are Rubbed Together

2. Atoms>>negative/positive charges

3. Electron:the negative charge[can move]

   Positive Charges[can't move]

4. Static Charge[doesn't move or flow]

1. Two Charged objects feel forces Without Touching

2. Electric forces can act across a gap>>Why?

   >>A:Because the charged objects have a electric field around them

   ___Electric field:an area in which other charged objects feel a force

3. Two things with opposite electric charges>>pull towards each other

   Positive and Negative charges Attract

   Two things with the same electric charge>>push away each other

   Same charges Repel

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