Difference between revisions of "Thermal Conductivity"
| Line 35: | Line 35: | ||
In science, heat is not generally considered a noun. It is a verb. Heat is something you do to an object. It is best practice to avoid making statements like 'heat passes through a material quickly' because heat is not a physical entity, but an action or process. | In science, heat is not generally considered a noun. It is a verb. Heat is something you do to an object. It is best practice to avoid making statements like 'heat passes through a material quickly' because heat is not a physical entity, but an action or process. | ||
A thermal conductor allows thermal energy to pass through it easily. A thermal conductor can be heated quickly. | A thermal conductor allows thermal energy to pass through it easily. A thermal conductor can be heated quickly. | ||
| + | |||
| + | ==Key Stage 3== | ||
| + | ===Meaning=== | ||
| + | [[Thermal Conductivity]] is how quickly [[Thermal Energy Store|thermal energy]] can be [[Energy Transfer|transferred]] through an [[object]]. | ||
| + | |||
| + | ===About Electrical Conductivity=== | ||
| + | : If a [[material]] can change [[temperature]] quickly when [[heat]]ed it is a [[Thermal Conductor|thermal conductor]]. | ||
| + | : If a [[material]] changes [[temperature]] slowly when [[heat]]ed it is a [[Thermal Insulator|thermal insulator]]. | ||
| + | |||
| + | ===Extra Information=== | ||
| + | {{#ev:youtube|https://www.youtube.com/watch?v=vqDbMEdLiCs}} | ||
| + | |||
| + | ==Key Stage 4== | ||
| + | ===Meaning=== | ||
| + | [[Thermal Conductivity]] is how quickly [[Thermal Energy Store|thermal energy]] can be [[Energy Transfer|transferred]] through an [[object]]. | ||
| + | |||
| + | ===About Electrical Conductivity=== | ||
| + | : If a [[material]] can change [[temperature]] quickly when [[heat]]ed it is a [[Thermal Conductor|thermal conductor]]. | ||
| + | : If a [[material]] changes [[temperature]] slowly when [[heat]]ed it is a [[Thermal Insulator|thermal insulator]]. | ||
Revision as of 08:43, 21 April 2019
Contents
Key Stage 2
Meaning
Thermal Conductivity is how quickly a material can be heated or cooled.
About Electrical Conductivity
- If a material can change temperature quickly it is a thermal conductor.
- If a material changes temperature slowly it is a thermal insulator.
Examples
| Metals |
 |
| All metals make good thermal conductors. |
| Plastic | Rubber | Air | Brick |
 |
 |
 |
 |
Note to Teachers
In science, heat is not generally considered a noun. It is a verb. Heat is something you do to an object. It is best practice to avoid making statements like 'heat passes through a material quickly' because heat is not a physical entity, but an action or process. A thermal conductor allows thermal energy to pass through it easily. A thermal conductor can be heated quickly.
Key Stage 3
Meaning
Thermal Conductivity is how quickly thermal energy can be transferred through an object.
About Electrical Conductivity
- If a material can change temperature quickly when heated it is a thermal conductor.
- If a material changes temperature slowly when heated it is a thermal insulator.
Extra Information
Key Stage 4
Meaning
Thermal Conductivity is how quickly thermal energy can be transferred through an object.
About Electrical Conductivity
- If a material can change temperature quickly when heated it is a thermal conductor.
- If a material changes temperature slowly when heated it is a thermal insulator.