Conservation Of Energy -Keeping Warm Flashcards
1
Q
Insulation def?
A
The process of slowing down the rate at which energy is transferred out a area (house, box) by heating
2
Q
Conduction def?
A
The process by which heat/electricity is directly transmitted through the material of a substance when there is a difference of temperature or of electrical potential between adjoining regions without movement of materials
E.g transmission of impulses through nerves
3
Q
Convection?
A
The transfer of heat through a fluid (liquid or gas) caused by molecular motion.
4
Q
What are good thermal conductors?
A
Metals
5
Q
What is the only way at which energy can be transferred through a vacuum?
A
Radiation
6
Q
What can reduce the transfer of energy?
A
Increasing the thickness of barriers (such as multiple walls)
