Conductors and Insulators of Heat
Conductors and Insulators of Heat: Overview
This topic defines conductors as substances that allow heat to pass through easily. It highlights some examples of conductors and insulators such as silver, copper, wood and iron. It also includes activities based on the concept.
Important Questions on Conductors and Insulators of Heat
With the help of an activity differentiate between thermal conductors and thermal insulators.
There are two bench seats in a park, one made of metal, the other made of wood. The metal seat feels much colder to sit on than the wooden one. A student says that it is because the metal seat is at a lower temperature than the wooden one. Explain why this explanation is incorrect, and give a correct explanation of why the metal seat seems colder than the wooden one.
Write down is the formula for thermal conductivity?
Heat travels much faster in insulators than in conductors.
Which form of water having the maximum value of thermal conductivity?
What are good thermal conductors used for ?
How can you tell the difference between a conductor and an insulator?
Cement is a bad conductor of heat.
Why the handles of metallic cooking utensils are made of wood or plastic?
Why a plastic slide is preferred over an aluminium one in children's parks on hot days?
Which of the following materials is an example of a good conductor of heat commonly used in cooking utensils?
Why are metals such as copper and aluminum good conductors of heat?
What property of materials makes them good conductors of heat?
