Conductors, Insulators, and Electrical Devices Exit Ticket

Which material is the BEST conductor?

• Copper

• Plastic

• Rubber

• Glass

Why are phone chargers safe to touch?

• They are made of only rubber

• They use insulators to cover conductors

• They have no electricity

• They are magnetic

Which object is an insulator?

• Steel Nail

• Aluminum Foil

• Wooden Ruler

• Copper Penny

A student wants to build a safe lamp. Which combination works BEST?

• Plastic wires inside, rubber outside

• Metal wires inside, rubber outside

• Metal wires inside, metal outside

• 1. Plastic wires inside, glass outside

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

Explain why both conductors and insulators are needed in electrical devices. Give one example.