Open Closed Circuits

Why is the light bulb not lit?

• the circuit is open because the switch is open

• the circuit is closed because the switch is closed

• the battery is dead and you need a new battery

• the wires are not connected to the battery

Tags

NGSS.MS-PS3-5

What do you need to do to this picture to make the light bulb light up?

• change the battery out

• attach an extra wire

• close the switch and complete the circuit

• open the switch and complete the circuit

Tags

NGSS.4-PS3-2

Is the circuit in the picture open or closed?

• open

• closed

• neither

An electrical circuit that is not complete and does not allow electricity to flow through it is called a __________________.

• simple circuit

• closed circuit

• open circuit

• parallel circuit

What kind of circuit is this?

• Open Circuit

• Closed Circuit

What kind of circuit is this?

• Open Circuit

• Closed Circuit

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

This circuit has a battery, buzzer, and switch.
When the switch is closed the buzzer will sound because -

• the switch gives energy to the battery

• the buzzer is made of special plastic

• the wires are cooled by the surrounding air

• electricity can flow in a complete path

Tags

NGSS.3-PS2-3

NGSS.4-PS3-2

Choose the correct sentence.

• This circuit will work because it is an open circuit.

• This circuit will work because it is a closed circuit.

• This circuit will NOT work because it is an open circuit.

• This circuit will NOT work because it is a closed circuit.

Which of the following is true about electrical circuits?

• every circuit needs a switch that can start and stop the flow of electricity

• electricity can only flow if the circuit is open

• electricity can only flow if the circuit is closed

• they have to involve a wire made of insulating material