Energy and Particle Model

2. Energy resources that are NOT replaced/replenished as easily as they are used.
3. ______ is measured in kg and tells us how much matter is in a material.
8. A variable in practicals - the thing you change.
10. The energy required to change 1 kg of material by 1 degree celcius. It is a property of the material.
12. Energy resources that are replaced/replenished as easily as they are used.
15. A variable in practicals - the thing you measure.
16. _______ = useful energy out/total energy in
17. Energy store - examples are anything that moves.
19. A state of matter where particles are far apart, moving freely and randomly.
21. Energy store - examples are anything that has heat.
22. A variable in practicals - the thing you keep the same.
23. Change of state from Gas to Liquid.

1. A state of matter where particles are arranged in order close together, vibrating on the spot.
4. The energy required to change the state of 1 kg of material at a constant temperature. It is a property of the material.
5. ______ is measured in Joules
6. Energy Resource - oil, coal and gas.
7. A state of matter where particles are disordered and close together, allowed to slide past each other.
9. By adding or removing heat we can change the _________ of a material.
11. Change of state from Liquid to Solid.
13. Energy store - examples are batteries, food and fuels.
14. Change of state from Solid to Liquid.
18. Change of state from Liquid to Gas.
20. _____ = mass/volume We can measure this using scales and a eureka can.