Electricity and circuits

What happens to a light bulb if you change the switch from closed to open?

• It starts glowing

• It stops glowing

• The light gets dimmer

• The light gets brighter.

A Wooden craft stick is a......

• conductor

• insulator

• circuit

• energy source

Tags

NGSS.MS-PS2-3

Which of these materials is NOT an electrical conductor?

• paper clip

• penny

• plastic DVD case

• staple

Which two objects will conduct electricty?

• pencil and eraser

• desk and chair

• steel nail and metal coin

• glass marble and paper envelope

Why do you need to strip the plastic coating off of copper wire used in a circuit?

• To make a better fit

• So that the electrical current can pass through the wire and other parts of the circuit.

• The copper wire is too thick to use in the circuit

• To prevent the circuit from becoming overloaded

Melissa wants to make an electrical circuit. She grabs a light bulb and a battery, What additional item does Melissa need to complete a circuit?

• switch

• wire

• insulator

• conductor

What type of circuit uses one wire to connect the circuit?

• paralllel

• open circuit

• series

• closed circuit

What is required for electricity to flow?

• An open circuit

• A series circuit

• A parallel circuit

• A closed circuit

What happens if a bulb in a series circuit goes out?

• The remaining bulbs shine brighter

• All bulbs go out

• Electricity flow increases

• Only that bulb goes out

How are bulbs arranged in a parallel circuit?

• In a single line

• In a closed loop

• Parallel to each other

• In alternating current