Complete vs Incomplete circuit

Which circuit is complete?

• Circuit A

• Circuit B

Why is circuit B incomplete?

• The switch is on.

• The switch is off.

• The light is on.

• The battery is old.

Tags

NGSS.MS-PS2-3

This is an incomplete circuit. Electricity cannot flow in an incomplete circuit.

True or False?

• True

• False

This is a complete circuit. Electricity can only flow in a complete circuit.

True or False?

• True

• False

What does it mean by a complete circuit?

• A complete circuit has no switch.

• A complete circuit has a switch.

• A complete circuit has no path (tidak ada laluan) for electricity to flow.

• A complete circuit has a path (ada laluan) for electricity to flow.

What does it mean by an incomplete circuit?

• An incomplete circuit has no switch.

• An incomplete circuit has a switch.

• An incomplete circuit has no path (tidak ada laluan) for electricity to flow.

• An incomplete circuit has a path (ada laluan) for electricity to flow.

Choose all circuits that are incomplete.

• 
• 
• 
• 
• 

Why are these circuits incomplete?

• The bulbs do not work.

• There are no switches.

• There are not enough wires.

• There are gaps in the circuits. So, electricity cannot flow along the circuits.

Tags

NGSS.MS-ETS1-1

How can we turn this circuit into a complete circuit?

• Add a switch.

• Join the wires.

• Add a dry cell.

• Add more wires

How can we turn this circuit into a complete circuit?

• Add a switch.

• Join the wire to the bulb terminal.

• Change the bulb

• Change the dry cell.