Science Pass

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

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

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.

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

Tags

NGSS.MS-PS3-5

_____________ 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

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

A parallel circuit is different than a series circuit because--

• it tastes good

• it has more batteries

• it has more pathways

• it has one pathway