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Kinetic Theory P1
| Question | Answer |
|---|---|
| Describe the state of matter in a solid.(2) | •Strong forces of electrostatic attraction mean particles close together • Particles can only vibrate • Little energy |
| Describe the state of matter in a liquid.(3) | • Particles slightly more disperse due to weaker attractive forces • Can flow • More energy than solids |
| Describe the state of matter in a gas.(3) | • Particles move freely • More energy • No attractive forces |
| What happens to the particles in a substance when heated? | They get more kinetic energy and move around more |
| Define conduction. | The process by which heat energy is transferred by vibrating particles to neighbouring particles |
| What is an insulator? | Substances where there are gaps in between particles, meaning heat energy cannot be transferred as quickly |
| Why do metals conduct well? | Because they have free electrons that collide with each other and pass on energy quickly. |