Ohm's Law and Circuits

Which variable in Ohm’s law represents the flow of electrons (much like the flow of a river)?

• resistance

• current

• voltage

Which variable in Ohm’s law is like friction that slows down the flow of electrons?

• resistance

• current

• voltage

Which variable in Ohm’s law is responsible for pushing/forcing the electrons to move?

• resistance

• current

• voltage

As the voltage increases, the current...

• increases

• decreases

• stays the same

Resistance and current are

• directly proportional

• inversely proportional

• not related

Choose all that are true: If you added more batteries to an electric circuit, it would

• increase the voltage

• decrease the voltage.

• increase the current.

• decrease the current.

• increase the resistance.

Choose all that are true: If you added more light bulbs to an electric circuit, it would

• increase the voltage.

• decrease the voltage.

• increase the current.

• decrease the current.

• increase the resistance.

The circuit shown is a parallel circuit.

• True

• False

Which bulb will be the brightest?

• Bulb A

• Bulb B

• Bulb C

• They will all be the same

If all of the batteries have the same voltage, which circuit will have the dimmest (least bright) bulbs?

• LEFT

• MIDDLE

• RIGHT

• if they have the same voltage they will all be the same brightness.