P2.1 Energy transfer by conduction

Question 1

What happens if you have a great thermal conductivity?

Answer 1

The more energy per second it transfers by conduction

Question 2

What do good insulators need to have?

Answer 2

Low thermal conductivity - less energy transfer through them as possible

Question 3

What does the energy transfer per second through a layer depend on?

Answer 3

The temperature difference across the material
The thickness of the material
The thermal conductivity of the material

Question 4

How can you reduce the energy transfer?

Answer 4

Having a low thermal conductivity

Thickness of the insulating layer should be as thick as possiblr