Electric Forces, Fields and EnergyCh. 17 & 18 Test

Like charges repel

How are electric forces and gravitationalforces different?

What variables affect the magnitudeof the force between electric charges?

Know how changing distance changeselectric force and potential energy

Be able to diagram the distributionof charges in an electroscope

Be able to draw vectors representingelectric field around electric charges

Know the definition of workand know work = PE

Know how moving a charge in an electricfield changes potential energy

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For different locations, know how a chargewould move

Know the different units for voltagewhat it measures, and be able to calculate it

1 m-5.0 nC -5.0 nC6 nC

Calculate the net electric force on the 6 nCcharge. Don’t forget direction!

If the 6 nC disappeared, calculate the electricfield where it was. Don’t forget direction!