The Nature of Electricity: Conductors and Insulators

The video explains why touching a live electric cord doesn't result in a shock due to the insulating properties of materials like rubber. It contrasts insulators with conductors, highlighting copper as a common conductor used in home wiring. The video also warns about the conductivity of water, advising caution during electric storms.

Why is it safe to touch a live electric cord without getting shocked?

• Because the cord is made of metal

• Because the cord is covered with an insulator

• Because electricity doesn't flow through cords

• Because the cord is not connected to a power source

Which material is commonly used to cover electric wires to make them safe?

• Copper

• Metal

• Glass

• Rubber

What is the primary material inside most electric cords that allows electricity to flow?

• Glass

• Copper

• Wood

• Rubber

Which of the following is a good conductor of electricity?

• Plastic

• Copper

• Rubber

• Wood

Why is it advised to avoid water during an electric storm?

• Water blocks electric signals

• Water is an insulator

• Water can extinguish electricity

• Water is a good conductor of electricity