CP3 Energy 2

4. Good at absorbing and emitting radiation.
7. A poor conductor.
8. A kind of electromagnetic radiation where hot objects transfer energy.
9. The fraction of energy input converted to a useful form.
10. Transfer of energy by movement of particles in a fluid (gas or liquid) depending on their temperature.
11. Reduces friction by putting a liquid between two surfaces.
12. To give out e.g. radiation

1. A liquid or a gas.
2. Bad at absorbing or emitting radiation, but good reflector.
3. To soak up or take in.
5. Transfer of energy through solids by heating. Vibrations are passed on from particle to particle.
6. Spreading out of energy.