Electricity

Front

A fifth grade class constructed this circuit. Which of these objects most likely made the light glow when connected to points X and Y? Options: plastic straw, cotton string, aluminum foil, rubber eraser

Back

aluminum foil

Front

A class prepared some electrical circuits using battery, connecting wires, and three light bulbs.  Which of these circuits can make the three bulbs light?

Back

B

Front

The electrician in this picture is wearing rubber gloves for protection.  The purpose of the rubber gloves is to --

Back

protect the electrician

Front

Which of these substances conducts electricity the best? wood, brick, copper, plastic

Back

copper

Front

What material would be safest to use as an insulator to cover electrical wires? Options: rubber, tin, aluminum, water

Back

rubber

Front

This instrument can be used to see if materials conduct electricity. Which of these groups contains items that could all conduct electricity to complete the circuit? rubber ball, plastic comb, nail, paper clip, penny, screw, cork, dollar bill, tweezers, pencil, eraser, spoon

Back

paper clip, penny, screw

Front

___________ allows electricity to flow.

Back

A conductor

Front

Glass is a 

Back

insulator

Front

Copper is a 

Back

conductor

Front

The plastic around the wire is

Back

insulator