Testing Conductivity of Materials

Mr. Jimenez guides students through a lab on classifying matter by testing various objects for conductivity. The video covers the concepts of conductors and insulators, demonstrating experiments with a rubber eraser, salt, iron nail, paper clip, sand, and iron filings to determine their conductive properties.

What is the primary function of a conductor in terms of electricity?

• To allow electricity to pass through

• To store electricity

• To convert electricity into light

• To block electricity

What happens to a light bulb when a conductor is connected in a circuit?

• The light bulb flickers

• The light bulb explodes

• The light bulb turns off

• The light bulb turns on

What was observed when the rubber eraser was tested for conductivity?

• The light bulb exploded

• The light bulb turned on

• The light bulb turned off

• The light bulb flickered

When salt was tested, what was the result regarding its conductivity?

• Salt is an insulator

• Salt is a superconductor

• Salt is a conductor

• Salt is a semi-conductor

What was the result when the iron nail was tested for conductivity?

• The light bulb exploded

• The light bulb flickered

• The light bulb turned off

• The light bulb turned on

What was observed when the paper clip was tested for conductivity?

• The light bulb exploded

• The light bulb flickered

• The light bulb turned off

• The light bulb turned on

What was the result when sand was tested for its ability to conduct electricity?

• Sand is a conductor

• Sand is an insulator

• Sand is a semi-conductor

• Sand is a superconductor

What was observed when iron filings were tested for conductivity?

• The light bulb flickered

• The light bulb turned off

• The light bulb turned on

• The light bulb exploded

What should students do after completing the conductivity tests?

• Discard their notes

• Move on to the next lab section

• Repeat the tests

• Submit their observations

What is the role of an insulator in an electrical circuit?

• To allow electricity to pass through

• To convert electricity into light

• To store electricity

• To block electricity