Ohm's Law and Circuits

What is the unit for resistance?

• volts

• amps

• coulombs

• ohms

As the resistance of a circuit increases, the current will...

• increase

• decrease

• stay the same

Which best describes a parallel circuit?

• Electricity flows along one pathway.

• The flow of electricity comes from one source.

• Electricity flows along more than one pathway.

• The flow of electricity comes from more than one source.

this circuit is .....?

• open

• parallel

• closed

• The cutest little circuit evah!

The picture shows an electrical circuit. This circuit is a series circuit because: 

• It has 3 light bulbs.

• The same current flows through all three light bulbs.

• It uses a single battery.

• The electrical current has more than one path to flow through

Simple, Series, or Parallel?

• Simple

• Series Circuit

• Parallel Circuit

What are the 3 basic components of a circuit?

• Energy source, Load, Energy Pathway (wire)

• Battery, Energy source, Energy Pathway (wire)

• Battery, and Wire

• ALL of them

What is resistance measured in?

• Ω (Ohms)

• V (Volts)

• A (Amps)

• W (Watts)

What voltage is needed to cause a 2A current flow through a 10Ω resistor?

• 5V

• 0.2V

• 20V

• 200V

What resistance is needed to cause a 50A current flow because of a 500V battery?

• 10Ώ

• 5Ώ

• 2500Ώ

• 550Ώ