Basic Electricity and DC Circuits

_____ is an electric device which easily closes or opens an electric circuit.

• Filament

• Electric bulb

• Electric switch

• Electric cell

What is a circuit?

• an outlet or switch
• a path which an electric current flows
• a poor conductor

What is an electric current? 

• the flow of electricity 
• electricity moving in only one direction
• a switch that gives power

A light bulb will shine brighter when

• An extra light bulb is added to the circuit
• An additional battery is added
• A smaller battery is used
• The switch is open in the circuit

what is this symbol for?

• light bulb
• switch
• battery
• resistor

this is the symbol for a _____?

• switch
• light 
• battery
• wires

A student is building a circuit that will convert electrical energy into light energy. What materials does the student need to complete his circuit?

• Wire, battery, and bulb
• Battery, switch, and wire
• Switch, bulb, and battery
• Bulb, wire, and switch

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

A correct statement of Ohm’s Law is:

• I= V R
• V ∝ I
• V = IR
• both b and c

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

• increase
• decrease
• stay the same