1
Q
Which state of matter does conduction mainly occur in? Why?
A
Solids, because liquids and gases are poor conductors
2
Q
Describe the process of conduction (4)
A
- One end of a solid is heated
- Particles at that end gain kinetic energy and vibrate more
- This energy is passed to neighbouring particles
- In this way, the energy is transferred through the solid
3
Q
Why are all metals such good conductors?
A
When metals are heated, their free electrons gain kinetic energy and move through the metal, transferring energy by colliding with other particles
4
Q
What are poor conductors called?
A
Insulators
5
Q
Why are materials such as wood and fibreglass such good insulators?
A
They contain trapped air, which is a poor conductor
*Physics 1
flashcards
Decks in class (15)
# Cards
-
1.1 - Infrared radiation5
-
1.2 - Surfaces and radiation5
-
1.3 - States of matter5
-
1.4 - Conduction5
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1.5 - Convection4
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1.6 - Evaporation and condensation7
-
1.7 - Energy transfer by design6
-
1.8 - Specific heat capacity3
-
1.9 - Heating and insulating buildings10
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2.1 - Forms of energy5
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2.2 - Conservation of energy8
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2.3 - Useful energy8
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2.4 - Energy and efficiency10
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3.1 - Electrical appliances4
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3.2 - Electrical power9
