Energy Transfer By Conduction

Question 1

When Testing Rids of Different Materials as Conductors Means where _______ Need to be the Same Width and Length for a _______ Test. Uncoated Ends are Heated Together. Wax Melts Fastest on the Rod that Best _____________ Energy.

Answer 1

Rods…Fair…Conducts…

Question 2

• Metals Conduct ________ Better than Non-Metals.
• Copper is a Better Conductor than _________.
• Glass Conducts Better than ________.

Answer 2

Energy…Steel…Wood…

Question 3

In Thermal Conductivity, Each Rod has the Same _____________ Different Between its Ends. Each Rod is the Same Length and ______________.

Answer 3

Temperature…Diameter…

Question 4

The Greater the Thermal Conductivity of a ____________, the More Energy Per ___________ it Transfers by Conduction.

Answer 4

Material…Second…

Question 5

Materials that are Good _____________ are Necessary to Keep you Warm in Winter, whether you’re at Home or Outdoors.

Answer 5

Insulators.

Question 6

Good Insulators need to be Materials that have _____ Thermal Conductivity, so __________ Transfer through them is as Low as Possible.

Answer 6

Low…Energy…

Question 7

Energy Transfer Per Second through a Layer of Insulating Material Depends On What?

Answer 7

• Temperature Difference Across the Material.

- Thickness of the Material.

Question 8

To Reduce the Energy Transfer as Much as Possible in Any Given Situation:

Answer 8

• The Thermal Conductivity of the Insulating Materials Should be as Low as Possible.
• The Thickness of the Insulating Layer should be as Thick as is Practically Possible.