Light and Electricity Quiz

Which material allows most light to pass through?

• Wood

• Metal

• Glass

• Rubber

An object that blocks all light is called:

• Transparent

• Opaque

• Translucent

• Flexible

What is the purpose of an insulator?

• Allows current to flow

• Prevents current from flowing

• Makes light brighter

• Produces energy

Which one is an example of an insulator?

• Copper wire

• Plastic coating

• Steel rod

• Aluminum foil

A material that helps electricity flow is called:

• Insulator

• Conductor

• Blocker

• Absorber

Which of the following is NOT a good conductor?

• Silver

• Plastic

• Copper

• Aluminum

When light passes through frosted glass, the glass is:

• Transparent

• Opaque

• Translucent

• Elastic

Which material is used to protect electricians from electric shocks?

• Metal gloves

• Rubber gloves

• Wool gloves

• Plastic bags

What happens if there's a break in an electric circuit?

• Light gets brighter

• Current flows faster

• Electricity cannot flow

• Electricity multiplies

In which part of a wire does electrical energy flow?

• Outer plastic

• Copper core

• Insulating layer

• Wire label