Electric Current Test

Which material could fill in the question mark for circuit B to create a complete circuit?

• Salt Water

• plastic spoon

• cotton

• construction paper

Which of the following could make the bulb in circuit A brighter?

• adding another light bulb

• putting in a switch

• adding another battery

• reversing the direction of the battery

Tags

NGSS.MS-ETS1-1

If no object is added to circuit B, and the wires are not attached, which of the following would describe the circuit

• complete circuit

• open circuit

• closed circuit

• series circuit

What other objects could take the place of the light bulb to create a complete circuit?

• buzzer

• motor

• both a buzzer and motor

• none of the above

Tags

NGSS.MS-ETS1-2

An object is added to the spot in Circuit B. Why might the light bulb still not lilght?

• The object added was an insulator

• the object added was a conductor

• the object was made of metal

• the object created a closed circuit

Tags

NGSS.MS-PS1-2

What is the purpose of the rubber coating on wires?

• Serves as a conductor for the circuit

• prevents the light bulb from using up too much energy

• serves as an insulator for protection

• closes the circuit

Tags

NGSS.MS-ETS1-1

Which is NOT a required part of a complete circuit designed to light a light bulb?

• battery

• switch

• wire

• light bulb

A circuit is open when...

• the switch completes the circuit

• the light bulb is lit

• the circuit is incomplete

• a buzzer is used instead of a light bulb

What is the source of energy in the circuits?

• Light bulb

• Battery

• Wire

• Conductive object