Electrical Circuits

A circuit has a switch, a battery, and a bulb. When the switch is closed, the light turns on. What type of energy moves through the wires of this closed circuit?

• sound

• chemical

• electrical

• physical

What is the purpose of a switch in an electric circuit?

• to change the direction of the electricity

• to allow the electric circuit to be opened or closed

• to provide a "push" for the electricity

• to increase the electric power of the bulb

Brayson made the circuit shown here in his science class. What is the most likely reason that the bulb is not lit?

• The bulb is cracked.

• He did not use the right size battery.

• He used too many pieces of wire.

• He left the switch open.

Tags

NGSS.4-PS3-2

Metal is __________________ because it allows heat and electricity to flow through.

• magnetic

• a conductor

• an insulator

• a circuit

The rubber coating on a wire cord is __________________ because it does not allow electricity to pass through to you.

• magnetic

• a conductor

• an insulator

• a circuit

_____________ electricity is the build-up of an electrical charge on the surface of an object. The charges stay in one place and do not flow to another area.

• Static

• Current

• Circuit

• Battery

The flow of electrons along a path is called _______________________.

• static electricity

• current electricity

• lightning

• magnetic field

Students are using the set-up pictured here to test how energy can move through a circuit. In order to complete this circuit, they should connect wires between which two points?

• A and C

• A and B

• A and D

• B and D

Tags

NGSS.4-PS3-2

Which statements are true about a parallel circuit? (Select the TWO best answers.)

• This is a circuit that allows an electric current to flow along more than one path.

• This is a circuit that allows only one path for the flow of electricity.

• This type of circuit will not work if one or more light bulbs go out.

• This type of circuit will work if one or more light bulbs go out.

On most Christmas lights, when one bulb goes out, the other bulbs on that string of lights will also go out. This is an example of a _________________ circuit.

• simple

• parallel

• series

• closed