2 Flashcards
(10 cards)
What is a conductor?
A material that allows the flow of electric current.
What is an insulator?
A material that resists the flow of electric current.
Which of the following is a good conductor? (a) Wood (b) Copper (c) Rubber
b) Copper
True or False: Copper is a poor conductor of electricity.
False
Fill in the blank: Carpet is a good __________.
insulator
Name one property of copper that makes it a good conductor.
It has a high electrical conductivity.
What is one reason why carpet is considered a good insulator?
It traps air, which reduces heat transfer.
List two examples of conductors.
Copper and aluminum.
List two examples of insulators.
Rubber and glass.
What role does temperature play in the conductivity of materials?
Higher temperatures can increase resistance in conductors and decrease insulation effectiveness.