Electricity

What do we call a material that lets electricity pass through it?

• insulator

• conductor

What do we call a material that does not let electricity pass through it?

• insulator

• conductor

Which one of these is a conductor?

• a piece of paper

• a plastic knife

• a house key

• a wooden spoon

Which one of these is an insulator?

• a metal pin

• a silver fork

• an iron nail

• a rubber eraser

What is electricity?

• A type of food.

• A type of energy.

• A type of metal.

• A synthetic material.

Which of the following materials is a good conductor of electricity?

• Wood

• Plastic

• Metal

• Paper

Why do we use rubber or plastic coatings on electrical wires?

• To make them look colourful.

• To protect us from electric shock.

• To make them good conductors.

Which of the following is a good conductor of electricity found in most homes?

• Glass

• Paper

• Plastic

• Copper

If you want to keep yourself safe from electric shocks, what should you NOT do?

• Turn on the light to see in the dark.

• Touch electrical wires with wet hands.

• Turn off electrical appliances when not in use.

• Use energy-saving light bulbs.

Which TWO of the following appliances needs electricity to work?

• Bicycle

• Toaster

• Pillow

• Washing Machine