Paul Hewitt says that the new concepts that we about to learn in electricity are similar to which concepts that we have already studied before?

Did you watch Paul Hewitt's video on Coulomb's Law?

Like charges __________ and opposite charges ________.

The Electric force is most similar to what other fundamental force in the universe?

Go to the PhET model of Coulomb's Law here: (Cut and paste into an url to visit) * Use for problems (6-13)

‪https://phet.colorado.edu/en/simulation/coulombs-law

Choose the "Macro Scale" button. By default, charge 1 (blue) has a value of -4 uC (micro-Coulombs). The negative value indicates that this particle (labeled q1) has a ___________ charge.

By default, charge 2 (red) has a value of +8 uC (micro-Coulombs). The positive value indicates that this particle (labeled q2) has a ___________ charge.

If q1 = -4 uC and q2 = +8; these charges will ________ one another.

Move the position of q2 to the 8 cm position. The distance between the two charges is _____ and the force between q1 and q2 is approximately _____.

Move the position of q2 to the 6 cm position. The distance between the two charges is now _____ and the force between q1 and q2 is approximately _____.

In this exercise, we reduced the distance by half (that is, put them closer together), and as a result the force (F) __________ by a factor of _____.

Press the reset button, and change charge 1 (q1) to 8 uC; these charges will now ________ one another.

To get these two charges closer, it will take ______ force to bring them together.