Electrical Circuits

In order for electricity to flow through a circuit, the circuit must be a closed, complete:

• Path, so that the electricity can make a complete circle.

• Donut, because circuits get hungry.

• Wire, made out of rubber.

• Solar panel, because circuits only work with the sun.

The circuit on the left is not complete (the light is off) because:

• the switch is closed

• the switch is open

• the battery is missing

• the battery is in backwards

The circuit on the right is complete (the light is on) because:

• the switch is closed

• the switch is open

• the battery is hot

• the battery is red

A ____ circuit has only one path for electrons to flow and therefore, when one portion of the circuit is disrupted, the whole circuit shuts down.

• series

• complete

• incomplete

• parallel

A ____ circuit has more than one path available for electrons to flow through, so if one portion of the circuit is not functioning, the whole circuit does not shut down

• series

• parallel

• incomplete

• complete

Every circuit needs AT LEAST which of the following

• source, conductor, transformer

• switch, conductor, transformer

• insulator, switch, source

• source, insulator, conductor

An incomplete circuit is shown.
To complete the circuit, a wire should be placed from —

• Point D to Point C
• Point B to Point C
• Point A to Point D
• Point B to Point D

Tags

NGSS.MS-PS2-3

What is missing from this circuit? Why would the light bulbs be off?

• The battery, there is no power for the circuit to work.

• The switch is open, so the circuit is broken.

• The third light bulb, that is needed to complete the circuit.

• The wires are not connected properly.

This steel paperclip would allow electricity to flow through it because:

• it is a conductor

• it is an insulator

• it is friendly

• it breaks the circuit

This rubber ducky would block the flow of electricity, because:

• it is a conductor

• it is an insulator

• it is yellow

• it completes the circuit